3-2425 Encore noncat 1450.indd

Encore
Non-Catalytic
Woodburning Stove
Model 1450
Homeowner’s
Installation and
Operating Manual
SAFETY NOTICE: IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, OPERATED AND MAINTAINED, A HOUSE FIRE MAY RESULT.
TO REDUCE THE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTIONS. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN
DEATH. CONTACT LOCAL BUILDING OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION
INSPECTION REQUIREMENTS IN YOUR AREA.
2425
Encore NC Cover
5/05
Do Not Discard This Manual: Retain for Future Use
30002425 2/08 Rev. 16
Encore 1450 Non-Catalytic Woodburning Stove
Welcome
Congratulations on your choice of a Vermont Castings Encore. With this purchase you have made a commitment to make
the hearth a place of warmth, beauty, and comfort in your home. At CFM Corporation, we share that joy and appreciation for
the hearth. You may be assured that your cast-iron Vermont Castings stove has been made with the utmost care and will
provide you with many years of service.
As you become acquainted with your new stove or fireplace, you will find that its visual appearance is matched by its functionality, due to cast iron’s unique capability to absorb and radiate heat.
Also, CFM Corporation units are among the cleanest-burning wood stoves and fireplaces available today. As an owner of a
Vermont Castings stove, you make a strong statement for pollution-free energy. Clean burning, however, depends on both
the manufacturer and the operator. Please read this manual carefully to understand how to properly operate and maintain
your stove or fireplace.
At CFM Corporation, we are equally committed to your satisfaction as a customer. That is why we maintain an exclusive
network of the finest dealers in the industry. Our dealers are chosen for their expertise and dedication to customer service.
They are factory-trained and knowledgeable about every CFM Corporation product. Feel free to contact your Authorized
Vermont Castings Dealer anytime you have a particular question about your stove or its performance.
This manual contains valuable instructions on the installation and operation of your Vermont Castings stove. It also contains
useful information on maintenance and assembly of this product. We urge you to read the manual thoroughly and to keep it
as a reference.
Sincerely,
All of us at CFM Corporation
This manual describes the installation, operation, and
maintenance of the Vermont Castings Encore Model 1450
non-catalytic wood burning heater. This heater meets the
U.S. Environmental Protection Agency’s emission limits for
wood heaters sold on or after July 1, 1990. Under specific
test conditions this heater has been shown to deliver heat
at rates ranging from 10,600 to 24,050 Btu/hr.
The Encore Model 1450 has been tested and is safety
listed by OMNI-Test Laboratories of Beaverton, Oregon.
The test standards are ANSI/UL-1482 and ANSI/UL-737
for the United States, and ULC S627. The Encore is listed
for burning wood. Do not burn other fuels.
The Encore is listed and approved for use in mobile
homes in the United States and Canada when installed
with Vermont Castings Mobile Home Kit. Refer to and
follow the instructions included with the mobile home
kit (#0336) to ensure safe installation.
We recommend that you hire a professional installer certified by the Wood Heat Education and Research Foundation (WHERF) or the Wood Energy Technical Training
(WETT) to install your stove, or to advise you on the installation should you attempt to install it yourself.
Please read this entire manual before you install and use
your new stove. Failure to follow instructions may result in
property damage, bodily injury, or even death.
Proposition 65 Warning: Fuels used in gas, woodburning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known
to the State of California to cause cancer, birth defects and other reproductive harm.
California Health & Safety Code Sec. 25249.6
2
Accessories
Warming Shelves
#0200 Classic Black #0205 Biscuit
#0201 Bordeaux
#0206 Chestnut Brown
#0202 Sand
#0207 Ebony
#0203 Midnight Blue #0209 Vt. Classic Green
#0204 Suede Brown
# 0127 Sparkscreen
# 0171 Horizontal Collar Heat Shield
# 0174 Vertical Collar Heat Shield
# 3265 Outside Air Kit
# 0336 Mobile Home Kit
# 2767 Variable Speed Fan Kit
# 0168 - 0169 Heat Shields for the Chimney Connector
- Matching Porcelain Stovepipe
- Matching 6” Flue Collar
Table of Contents
Specifications ................................. 3
Installation ...................................... 4
Assembly ...................................... 18
Operation...................................... 20
Maintenance ................................. 27
Replacement Parts ....................... 31
Warranty ....................................... 35
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Specifications
Range of heat output ............ 10,600 to 24,050 BTU/hr*
Maximum heat output ..........................50,000 BTU/hr**
EPA emissions ratings, g/hr, non-catalytic ...............0.7*
Area heated*** ............... Up to 1900 sq. ft. (175 sq. m.)
Fuel size/type ...................................20” (508 mm) logs
Fuel capacity ........................................... 40 lbs. (18kg)
Loading ....................................................... Front or top
Chimney connector:
for 8” oval flue collar ................ 8” (203 mm) diameter
for optional 6” flue collar .......... 6” (152 mm) diameter
Chimney flue size:
for 8” oval flue collar ................8” (203 mm) minimum
for optional 6” flue collar ..........6” (152 mm) minimum
Flue exit position ....................... Reversible, top or rear
Primary air ............................................. Manual control
Secondary air .............................. Fixed, Self-regulating
Ash handling system ..................... Removable ash pan
Glass panel ........ High-temperature, IR coated ceramic
Weight ................................................ 395 lbs. (179 kg)
Width (leg-to-leg) ..................................... 27” (686 mm)
Depth (leg-to-leg) .................................... 15” (381 mm)
Height to top of flue collar, (6” or 8”)
Top exit .............................................. 25¹⁄₄” (641 mm)
Rear exit ............................................ 26¹⁄₂” (673 mm)
*Under specific conditions used during EPA emissions
testing.
**These values are based on operation in building
code-conforming homes under typical winter climate
conditions in New England. If your home is of nonstandard construction (e.g. unusually well-insulated, not insulated, built underground, etc.) or if you live in a more
severe or more temperate climate, these figures may
not apply. Since so many variables affect performance,
consult your Vermont Castings’ Authorized Dealer to
determine realistic expectations for your home.
Drawings Not to Scale
22���"
(578 mm)
3���"
(95 mm)
27"
(686 mm)
18���"
(470 mm)
1���"
(44 mm)
22���"
(565 mm)
15���"
(394 mm)
25"
(635 mm)
Top exit
flue collar
height
25���"
(654 mm)
5"
(127 mm)
2���" (73 mm)
23���"
(603 mm)
7���"
(184 mm)
27"
(686 mm)
15"
(381 mm)
Fig. 1 Encore dimensions.
����
Encore 1450
dimensions
30002425
3
Encore 1450 Non-Catalytic Woodburning Stove
Installation
Before you begin an installation, be sure that:
• Your stove and chimney connector will be far
enough from combustible materials to meet all
tested clearance requirements.
• The floor protector is large enough and is constructed properly to meet all tested requirements.
• You have all necessary permits from local authorities.
Your local building official is the final authority for approving your installation as safe and determining that it
meets local and state codes.
The metal label permanently attached to the back of
every Vermont Castings’ stove indicates the stove has
been tested and meets current UL and ULC safety
standards, and gives the name of the testing laboratory.
Clearance and installation information also is printed
on the label. When the stove is installed according to
the information both on the label and in this manual,
local authorities in most cases will accept the label as
evidence that the installation meets codes and can be
approved.
However, codes vary in different areas. Before starting
the installation, review your plans with the local building
authority. Your local dealer can provide any additional
information needed.
For any unresolved installation issues, refer to the
National Fire Protection Association’s publication ANSI/
NFPA 211 Standard for Chimneys, Fireplaces, Vents
and Solid Fuel Burning Appliances. For Canada, the
equivalent publication is CSA CAN-B365 Installation
Code for Solid Fuel Burning Appliances and Equipment.
These standards are the basis for many national codes.
They are nationally recognized and are accepted by
most local authorities. Your local dealer or your local
building official may have a copy of these regulations.
IMPORTANT: FAILURE TO FOLLOW THESE INSTALLATION INSTRUCTIONS MAY RESULT IN A
DANGEROUS SITUATION, INCLUDING A CHIMNEY
OR HOUSE FIRE. FOLLOW ALL INSTRUCTIONS
EXACTLY, AND DO NOT ALLOW MAKESHIFT COMPROMISES TO ENDANGER PROPERTY AND PERSONAL SAFETY.
4
Outside Air
In some modern, super-insulated homes, there is
inadequate air for combustion because of insufficient
air infiltration into the building. Such air enters a home
through unsealed cracks and openings. Exhaust fans
for kitchen or bath can compete with the stove for available air and compound the problem.
When poor draft is caused by a low infiltration rate,
opening a ground floor window on the windward side
of the house and in the vicinity of the stove will usually
alleviate the problem.
Another solution is to install a permanent outside air
supply to the stove and/or room. In fact, bringing air for
combustion from outside the home directly to the air inlet of the stove is required for new construction in some
areas. The Encore NC is equipped with an outside connection as standard equipment.
Pressure variations within the house do not affect a
stove equipped with an outside air supply, and improved stove performance often results. An Outside Air
Adapter Kit for the Encore is available from your local
Vermont Castings dealer.
Chimney Height
Altitude affects chimney performance. When using a
6” flue collar on the Encore NC, refer to Figure 2 for
suggested chimney heights at various altitudes. Chimney height should be measured from the flue collar to
the top of the chimney. The recommended minimum
chimney height is 16’ (4.9 m).
30
Height (ft.)
SAFETY NOTICE: IF YOUR ENCORE IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT.
TO REDUCE THE RISK OF FIRE, FOLLOW THE
INSTALLATION INSTRUCTIONS. CONTACT LOCAL
BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION REQUIREMENTS IN YOUR AREA.
25
6“
20
15
0
ST491
2000
4000
6000
8000
10000
12000
Altitude (ft.)
Fig. 2 Chimney height requirements for Encore when
equipped with a 6” chimney.
ST491
Defiant
chimney height
11/2/00 djt
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Masonry Chimneys
What Kind of Chimney to Use
You must connect the Encore to a code-approved
masonry chimney with a flue liner, to a relined masonry
chimney that meets local codes, or to a prefabricated
metal chimney that complies with the requirements
for Type HT chimneys in the Standard for Chimneys,
Factory-Built, Residential Type and Building Heating
Appliance, UL 103. (Fig. 3) The chimney and chimney
connector must be in good condition and kept clean.
A prefabricated doublewall insulated chimney
An inspection of the chimney must confirm that it has
a lining. Do not use an unlined chimney. The chimney
should have no cracks, loose mortar, other signs of
deterioration, and blockage. Repair any defects before
the chimney is used with your stove.
Unused openings in an existing masonry chimney must
be sealed with masonry to the thickness of the chimney
wall, and the chimney liner should be repaired. Openings sealed with pie plates or wallpaper are a hazard
and should be sealed with mortar or refractory cement.
In the event of a chimney fire, flames and smoke may
be forced out of these unused thimbles.
The chimney should be thoroughly cleaned before use.
A newly-built masonry chimney must conform to the
standards of your local building code or, in the absence
of a local code, to a recognized national code. Masonry
chimneys must be lined, either with code-approved
masonry or pre-cast refractory tiles, stainless steel
pipe, or a code-approved, “poured-in-place” liner. The
chimney’s clean-out door must seal tightly.
A tile-lined
masonry
chimney
ST241
Prefabricated Chimneys
Fig. 3 Approved chimney types.
If you use an existing masonry chimney, it must be
inspected to ensure it is in a safe condition before
the stove is installed. Your
ST241local professional chimney
chimney types
sweep, building inspector,
or fire department official will
12/13/99 djt
be able to inspect the
chimney or provide a referral to
someone who can.
The chimney should extend at least 3’ (914 mm) above
the highest point where it passes through a roof, and at
least 2’ (610 mm) higher than any portion of a building
within 10’ (3 m). (Fig. 4)
For proper draft and good performance, any chimney
used with an Encore should extend at least 16’ (5 m)
above the flue collar of the stove.
0 To 10'
2' Min.
3'
Min.
2' Min.
3'
Min.
AC617
Fig. 4 The 2’-3’-10’ Chimney Rule.
AC617
RLTSKC8
2/11/98
30002425
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE
SERVING ANOTHER APPLIANCE.
Chimney Size
An Encore with an 8” (203 mm) flue collar is approved
for venting into a masonry chimney with a nominal
flue size of 8” x 8” (203 x 203 mm) or 8” x 12” (203 x
305mm), and into a round flue with nominal flue size of
8” (203 mm). An Encore with a 6” (152 mm) flue collar
is approved for venting into a masonry chimney with a
nominal flue size of 8” x 8” (203 x 203 mm), and into a
round flue with nominal flue of 6” (152 mm).
NOTE: When installed with a 6” flue collar,
the Encore may not be operated with the
front doors open.
0 To 10'
Reference
Point
A prefabricated metal chimney must be one tested and
listed for use with solid-fuel burning appliances to the
High-Temperature (H.T.) Chimney Standard UL-1031985 (2100°F) for the United States, and High Temperature (650°C) Standard ULC S-629 for Canada.
Whatever the flue collar size, an Encore may be vented
into larger chimneys as well. However, chimneys
with liners larger than 8” x 12” (203 x 305 mm) may
experience rapid cooling of smoke and reduction in
draft, especially if the chimneys are located outside the
home. These large chimneys may need to be insulated
or have their flues relined for proper stove performance.
Accessories to help make the connection between
stainless steel chimney liners and your Encore are
available through your local dealer.
5
Encore 1450 Non-Catalytic Woodburning Stove
Chimney Connector Guidelines
A chimney connector is the double-wall or single-wall
pipe that connects the stove to the chimney. The chimney itself is the masonry or prefabricated structure that
encloses the flue. Chimney connectors are used only to
connect the stove to the chimney, as in Figure 5.
Double-wall connectors must be tested and listed for
use with solid-fuel burning appliances. Single-wall connectors should be made of 24 gauge or heavier steel.
Do not use galvanized connector; it cannot withstand
the high temperatures that can be reached by the
stove’s exhaust gases, and may release toxic fumes
under high heat. The connector may be 6” (152mm) or
8 “ (203mm) in diameter.
If possible, do not pass the chimney connector through
a combustible wall or ceiling. If passage through a combustible wall is unavoidable, refer to the section on Wall
Pass-Throughs. Do not pass the connector through an
attic, a closet or similar concealed space. The whole
connector should be exposed and accessible for inspection and cleaning.
In horizontal runs of chimney connector, maintain a distance of 24” (610mm) from the ceiling. Keep it as short
and direct as possible, with no more than two 90° turns.
Slope horizontal runs of connector upward 1/4” per foot
(6mm per meter) going from the stove toward the chimney. The recommended maximum length of a horizontal
run is 3’ (1m), and the total length should be no longer
than 8’ (2.4m). In cathedral ceiling installations, extend
the prefabricated chimney downward to within 8’ (2.4)
of the stove.
Wear gloves and protective eyewear when drilling,
cutting or joining sections of chimney connector.
Single-wall Chimney Connectors
• Begin assembly at the flue collar of the stove. Insert
•
•
•
6
the first crimped end into the stove’s flue collar, and
keep each crimped end pointing toward the stove.
(Fig. 5)Using the holes in the flue collar as guides,
drill 1/8” (3mm) holes in the bottom of the first section of chimney connector and secure it to the flue
collar with three #10 x 1/2” sheet metal screws.
Secure each joint between sections of chimney
connector, including telescoping joints, with at least
three (3) sheet metal screws. The pre-drilled holes in
the top of each section of chimney connector serve
as guides when you drill 1/8” (3mm) holes in the bottom of the next section.
Secure the chimney connector to the chimney. Instructions for various installations follow.
Be sure the stove and chimney connector are installed at the correct distances from nearby combustible materials as per tested clearance. Refer to
Encore Clearance Diagrams.
NOTE: Special slip pipes and thimble sleeves that form
telescoping joints between sections of chimney connector are available to simplify installations. They often
eliminate the need to cut individual connector sections.
Consult your local dealer about these special pieces.
Double-wall Chimney Connectors
Information on assembling and installing double-wall
connectors is provided by the manufacturer of the
double-wall pipe. Follow the manufacturer’s instructions
exactly as you assemble the
connector and attach it to the
stove and chimney. Using
chimneys and connectors
from the same manufacturer
makes the assembly and
installation straightforward.
NOTE: For installations using double-wall connectors,
minimum clearances must
conform to the listed clearances in the clearance chart
on Page 15.
Fig. 5 the crimped end
of the connector points
ST242
connector
stove.
If the Encore is equipped with towardChimney
12/13/99 djt
the 8” flue collar, an ovalto-round adapter will be needed. Double-wall oval-toround adapters are available from some manufacturers.
Your local dealer can help you select the right connector.
Securing the Single-wall Connector to a
Prefabricated Chimney
Follow the installation instructions of the chimney
manufacturer exactly as you install the chimney. The
manufacturer of the chimney will supply the accessories to support the chimney, either from the roof of
the house, at the ceiling of the room where the stove is
installed, or from an exterior wall.
Special adapters are available from your local dealer
which connect the prefabricated chimney to the chimney connector. The top of such adapters attach directly
to the chimney or to the chimney’s ceiling support package, while the bottom of the adapter is screwed to the
chimney connector.
These adapters are designed so the top end will fit
outside the inner wall of the chimney, and the bottom
end will fit inside the first section of chimney connector.
When assembled in this way, any soot or creosote falling from the inner walls of the chimney will stay inside
the chimney connector.
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Chimney
Flue
Elbow
Thimble Sleeve
Flue Liner
Chimney Connector
Keep
sleeve
end flush
with flue
tile
Slip Pipe
Standard
Connector
Oval to
Round Adapter
Flue
Thimble
ST243
Flue Collar
Fig. 7 The thimble, made of either ceramic or metal, must be
cemented securely in place.
ST492
Fig. 6 An exploded view of the chimney connection in a freestanding masonry installation.
Securing
ST492
Defiant
the Single-wall
freestanding Connector
installation
Masonry
Chimney
11/00
to a
Both freestanding masonry chimneys and fireplace masonry chimneys may be used for your installation.
Freestanding Installations
If the chimney connector must pass through a combustible wall to reach the chimney, follow the recommendations in the Wall Pass-Through section later in this
manual.
The opening through the chimney wall to the flue
(the “breech”) must be lined with either a ceramic or
metal cylinder, called the “thimble”, which is cemented
securely in place. Most chimney breeches incorporate
thimbles, but the fit must be snug and the joint between
the thimble and the chimney wall must be cemented
firmly.
A special piece called the “thimble sleeve,” slightly
smaller in diameter than standard connectors and
most thimbles, will facilitate the removal of the chimney
connector system for inspection and cleaning. Thimble
sleeves are available from your local dealer.
To install a thimble sleeve, slide it into the breech until
it is flush with the inner flue wall. Do not extend it into
the actual flue passage, as this could interfere with the
draft.
30002425
The thimble sleeve should protrude 1-2” (25-50mm) into
the room. (Fig. 7) Use furnace cement and thin gasketing to seal the sleeve in place in the thimble. Secure
ST243
the chimney thinble
connector
to the outer end of the sleeve
connection
12/13/99
with sheet metal
screws. djt
Without a thimble, a suitable length of chimney connector can be extended through the breech to the inner
face of the flue liner, and cemented securely in place.
Additional pieces of connector are then attached with
sheet metal screws.
Fireplace Installations
The chimney connector may be connected to the
chimney above the fireplace opening or through the
fireplace.
Above the Fireplace
The Encore may be connected to a chimney above
a fireplace opening. (Fig. 8) In such installations, the
stove is positioned on the hearth in front of the fireplace
and the chimney connector rises from the stove top and
then angles ninety degrees back into the chimney. The
chimney liner should extend to the point at which the
chimney connector enters the chimney.
If the chimney connector from your installation enters
the chimney above a fireplace, follow all the guidelines
mentioned above for freestanding installations. In addition, give special consideration to the following points:
• Check the clearance between the stove and the
chimney connector, and any combustible trim or the
mantel. Use the necessary combination of mantel, trim,
and connector heat shields to achieve the required
clearances.
• Check the clearance between the chimney connector and the ceiling. If no heat shields are used, the
clearance should be at least 24” (610mm). To find out
how much this clearance may be reduced with heat
shields, refer to the clearance chart on Page 15.
7
Encore 1450 Non-Catalytic Woodburning Stove
• The fireplace damper must be sealed to prevent
room air from escaping up the flue. However, it must be
possible to re-open the damper to inspect or clean the
chimney.
Flexible Connector
Chimney
Connector Shields
*
Mantel Shield
Fireplace Adapter
Kit “Positive Connection”
*
* Check These
Clearances
Mantel
Seal Damper
to Air Flow
ST244
Fig. 8 In this installation, the chimney connector is attached
to the chimney above the fireplace opening.
ST244
Through
the Fireplace
Plymouth
over mantel
If your fireplace openingfplcheight
is at least 26¹⁄₂"
12/99
(675mm), you may install an Encore through the opening using a “positive connection” kit, available from your
local dealer. These positive connection kits ensure a
tight fit between the stove flue collar and the chimney
flue. (Fig. 9)
Fireplace installations, whether connected to the flue
above or through the fireplace opening, have special
clearance requirements to adjacent trim and the mantel.
You’ll find the required safe clearances for Encore fireplace installations on Page 12 and Figure 16.
Floor protection requirements also apply to fireplace
installations. This information is on Page 10.
Wall Pass-Throughs
Whenever possible, design your installation so the connector does not pass through a combustible wall. If you
are considering a wall pass-through in your installation,
check with your building inspector before you begin.
Also, check with the chimney connector manufacturer
for any specific requirements.
Accessories are available for use as wall passthroughs. If using one of these, make sure it has been
tested and listed for use as a wall pass-through.
8
ST245
Fig. 9 In this installation, the chimney connector enters the
fireplace opening and then connects to the chimney.
In the United States, ST245
the National Fire Protection Asfireplace
sociation (NFPA) has established
guidelines for passing
flex connector
chimney connectors through
combustible
walls. Many
12/99
building code inspectors follow these guidelines when
approving installations.
Figure 10 shows one NFPA-recommended method.
All combustible material in the wall is cut away from
the single-wall connector to provide the required 12”
(305mm) clearance. Any material used to close up the
opening must be noncombustible.
Three other methods are also approved by the NFPA:
• Using a section of double-wall chimney with a 9”
(229mm) clearance to combustibles.
• Placing a section of chimney connector inside a
ventilated thimble, which in turn is separated from combustibles by 6” (152mm) of fiberglass insulating material.
• Placing a section of chimney connector inside a
section of 9” (230mm) diameter, solid-insulated, factorybuilt chimney, with 2” (50mm) of air space between the
chimney section and combustibles.
In Canada, The Canadian Standards Association has
established different guidelines. Figure 10 shows one
method, in which all combustible material in the wall is
cut away to provide the required 18” (457mm) clearance for the connector. The resulting space must remain empty. A flush-mounted sheet metal cover may be
used on one side only. If covers must be used on both
sides, each cover must be mounted on noncombustible
spacers at least 1” (25mm) clear of the wall.
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Floor Protection
Wall Stud
A tremendous amount of heat radiates from the bottom
plate of your stove. The floor area directly under and
around the stove will require protection from radiant
heat as well as from stray sparks or embers that may
escape the firebox.
Chimney
Connector
T
DE
FIA N
12” Noncombustible
Material
Floor Protection
ST493
Fig. 10 An approved wall pass-through for the United States.
Your local dealer or your local building inspector can
provide details for other approved methods of passing
a chimney connector through
ST493 a combustible wall in your
Brick
thru
area. In Canada, this type
ofpass
installation
must conform
11/00
to CAN/CSA-B365, Installation Code for Solid Fuel
Burning Appliances and Equipment.
NOTE: Do not vent your Encore into a factory-built
(zero-clearance) fireplace. These appliances together
with their specific chimneys are designed as a system for use as fireplaces. It may void the listing or be
hazardous to adapt factory-built fireplaces for any other
use.
18” (460mm) clear
space all around
the pipe
T
Heat protection is provided through the bottom heat
shield. Spark, ember and thermal protection must be
provided by a floor protector constructed with noncombustible material as specified.
Most installations will require the bottom heat shield be
attached. Only when the stove is placed on a completely noncombustible surface such as unpainted concrete
over earth may it be used without the heat shield.
Even when the bottom heat shield is installed, you
must provide special protection to the floor beneath.
For installation with the heat shield attached, use an
approved 1/2” (13 mm) noncombustible hearth pad with
k = 0.84 BTU/in ft2 hr °F or an equivalent material with
an R-value of at least 0.59. (Refer to “How to Determine
if Alternate Floor Protection Materials are Acceptable”
section) The floor protector may be covered with a
decorative noncombustible material if desired. Do not
obstruct the space under the heater.
Protection requirements vary somewhat between the
Untied States and Canada as follows:
U. S. installations the floor protector is required under
the stove and must extend at least 16” (not including
the ash lip) from the front of the stove (“F”, Fig. 12), and
at least 6” from the sides and rear. (“D” and “E”, Fig.
12) It must also extend under the chimney connector
and 2” to either side. (“C”, Fig. 12) For the 8” (203 mm)
connector, the protector must be a minimum of 12”
(305 mm) wide. For the 6” (152 mm) connector, the
protector must be 10” (254 mm) wide. The protector
must be centered under the connector.
To meet these requirements, a floor protector must be
at least 39” wide and 45” deep.
In Canada: A noncombustible floor protector is required
under the stove as well. The floor protector must
extend 18” (450 mm) to the front (“F”, Fig. 12), and 8”
(200 mm) from the sides and rear. (“D” and “E”, Fig. 12)
ST494
Fig. 11 An approved wall pass-through for Canada.
DO NOT CONNECT AN ENCORE TO ANY AIR DISST494
TRIBUTION DUCT OR steel
SYSTEM.
wall pass thru
11/00
30002425
To meet these requirements, a floor protector must be
at least 43” (1092 mm) wide and 49” (1245 mm) deep.
Floor protection also must extend under the chimney
connector and 2” (51 mm) to either side. (“C”, Fig. 12)
For the 8” (203 mm) connector, the protector must be
a minimum of 12” (305 mm) wide. For the 6” (152 mm)
connector, it must be at least 10” (254 mm) wide. The
protector must be centered under the connector.
9
Encore 1450 Non-Catalytic Woodburning Stove
EXAMPLE: The specified floor protector should be 1/2inch thick material with k-factor of 0.84. The proposed
alternate is 4” brick with an r-factor of 0.2 over 1/8”
mineral board with a k-factor of 0.29
C
D
B
E
E
E
F
F
A
A.
B.
C.
D.
E.
F.
E
A
U.S.
39”
45”
12”
10”
6”
6”
16”
Canada
43” (1092 mm)
49” (1245 mm)
12” (305 mm) 8” Connector
10”ST500
(255 mm) 6” Connector
8” Encore
(200 mm)
floor protection
8” 2/23/01
(200 mm)
18” (450 mm)
Required thermal protection: 1/2” (13 mm) minimum noncombustible material with an R-value
ST500
of at least 0.59.
Fig. 12 Required floor protector dimensions for both top-and
rear-exiting stove.
How to Determine if Alternate Floor
Protection Materials are Acceptable
All floor protection must be noncombustible (i.e. metals, brick, stone, mineral fiber boards, etc.). Any organic
materials (i.e. plastics, wood paper products, etc.) are
combustible and must not be used. The floor protection
specified includes some form of thermal designation
such as R-value (thermal resistance) or k-factor (thermal conductivity).
Procedure:
1. Convert specifications to R-value:
i. R-value given - no conversion needed.
ii. k-factor is given with a required thickness (T) in
inches: R = 1 x T
k
iii. K-factor is given with a required thickness (T) in
inches: R = 1
xT
K x 12
iv. r-factor is given with a required thickness (T) in
inches: R = r x T
2. Determine the R-value of the proposed alternate
floor protector:
i. Use the formula in Step 1 to convert values not
expressed as R.
ii. For multiple layers, add R-values of each layer to
determine overall R-value.
3. If the overall R-value of the system is greater than
the R-value of the specified floor protector, the alternate is acceptable.
10
Step a: Use formula above to convert specification to
R-value: R = 1 x T = 1 x 0.5 = 0.59
k
0.84
Step b: Calculate R of proposed system.
4” brick of r = 0.2, therefore:
Rbrick = 0.2 x 4 = 0.8
1/8” mineral board of k = 0.29, therefore
Rmineralboard = 1 x 0.125 = 0.431
0.29
Rtotal = Rbrick + Rmineralboard = 0.8 + 0.431 = 1.231
Step c: Compare proposed system Rtotal of 1.231 to
specified R of 0.59. Since proposed system Rtotal is
greater than required, the system is acceptable.
Definitions
(ft2)(hr)(°F)
Btu
k=
K = (Btu)(ft)
(ft2)(hr)(°F)
r=
R=
(Btu)(in)
= K x 12
(ft2)(hr)(°F)
(ft2)(hr)(°F) 1
=
(Btu)(in)
k
Floor Protection for Fireplace Installations
Do not assume that your fireplace hearth is completely
noncombustible.
Many fireplace hearths do not meet the “completely
noncombustible” requirement because the brick or
concrete in front of the fireplace opening is supported
by heavy wood framing. (Fig. 13) Because heat passes
through brick or concrete readily, it can easily pass
through to the wood. As a result, such fireplace hearths
can be a fire hazard and are considered a combustible
floor.
Keep in mind, also, that many raised hearths will extend
less than the required clearance from the front of the
heater when it is installed. In such cases, sufficient
floor protection as described above must be added in
front of the hearth to satisfy the minimum floor protector
requirement from the front of the stove: 16” (406 mm)
from the front in the United States and 18” (450 mm)
from the front in Canada.
Hearth rugs do not satisfy the requirements for floor
protection.
Fireplace installations also have special clearance
requirements to the side walls, side decorative trim, and
fireplace mantel. This information follows in the section
on Fireplace and Mantel Trim Shields.
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Keep the Stove a Safe Distance
from Surrounding Materials
Both a stove and its chimney connector radiate heat in
all directions when operating, and dangerous overheating of nearby combustible materials can occur if they
are too close to the heat. A safe installation requires
that adequate clearance be maintained between the
hot stove and its connector and nearby combustibles.
Clearance is the distance between either your stove
(measured from the bottom edge of the stove’s top
plate) or chimney connector, and nearby walls, floors,
the ceiling, and any other fixed combustible surface.
Your stove has special clearance requirements that
have been established after careful research and testing to UL and ULC standards. These clearance requirements must be strictly observed.
In addition, furnishings and other combustible materials must be kept away from the stove. In general, a
distance of 48” (1219mm) must be maintained between
the stove and moveable combustible items such as drying clothes, furniture, newspapers, firewood, etc. Keeping those clearance areas empty assures that nearby
surfaces and objects will not overheat.
The Encore 1450 includes a bottom heat shield that is
needed in most installations. Refer to Page 9 for more
information on required floor protection. In addition, top
exit installations that do not include wall protection must
include a vertical flue collar heat shield. (Consult clearance chart on Page 15.) The vertical flue collar heat
shield is sold as a separate accessory.
In general, the greatest clearance is required when you
place a stove and its connector without accessory heat
shields near walls without heat shields.
For example, when the Encore is installed parallel to
the rear wall and no shields are used, the rear edge
of the top must be at least 29” (737 mm) from the wall
behind it and at least 17” (432 mm) from walls on either
side.
If the Encore is installed in a corner and no shields
are used, the corners of the stove must be at least 28”
(711 mm) from nearby walls.
The least clearance is required when the connector, as
well as the wall, have heat shields or when a double
wall connector and wall shields are used.
When shields are attached to the stove or chimney
connector, they are mounted away from the stove or
connector surface on noncombustible spacers. Air flowing between the stove (and/or chimney connector) and
attached shields carries away heat. Do not block the air
flow by filling these gaps with any material.
The shiny shield surface facing the heat source must be
left unpainted, enabling it to reflect heat back towards
the stove or connector and away from the wall.
Clearances may be reduced only by means approved
by the regulatory authority, and in accordance with the
clearances listed in this manual.
Wood framing requires protection from radiant heat
ST247e
Fig. 13 Combustible supporting timbers may lie beneath
fireplace hearths, requiring additional floor protection.
Reducing Clearances Safely with Shields
Clearance requirements are established to meet every
installation possibility, and they involve the combination
ST247
of four basic variables:
Rear exit floor dgrm
• When the chimney connector has no listed heat
shield mounted on it. 12/14/99 djt
• When the chimney connector has a listed heat
•
•
shield mounted on it.
When the wall has no listed heat shield mounted
on it.
When the wall has a heat shield mounted on it.
30002425
Because of their restricted air flow and heat retention
characteristics, specific construction requirements and
special clearances apply to installations into alcoves.
Refer to the diagrams on Page 10, and contact your
Vermont Castings Dealer for details before beginning
an alcove installation.
NOTE: ALCOVE INSTALLATION OF THE ENCORE
IS NOT PERMITTED IN CANADA.
Wall Shields
One way to reduce clearances is with a wall shield
constructed of 24 gauge or heavier sheet metal, or of
another noncombustible material such as 1/2” (13 mm)
insulation board or common brick “laid on flat,” with the
3¹⁄₂" (90mm) side down.
Shields must be spaced out from the combustible
surface 1" (25 mm) on noncombustible spacers, as in
Figure 14. The spacers should not be directly behind
the stove or chimney connector.
11
Encore 1450 Non-Catalytic Woodburning Stove
Air must be able to flow between the wall and the
shield. At least 50% of the bottom 1" (25 mm) of the
shield should be open and the shield must be open at
the top. Use metal screening, as in Figure 14, to keep
stray objects from falling behind the shield.
The shield for a top-exit stove must extend 10"
(254 mm) above the top of the stove; for a rear exit
configuration, the shield must be 36” (914 mm) high.
The shield for the chimney connector must be 30” (762
mm) wide, centered behind the pipe; for installations
that use an approved prefabricated chimney to pass
through the ceiling, the chimney connector shield must
stop 1” (25 mm) below the ceiling.
Air Flow
Wall Shield
Stud Wall
Framing
Drywall
A fireplace installation requires special clearance between the side of the stove and the right and left walls,
between the side of the stove and the decorative side
trim on the fireplace face, and between the top of the
stove and the mantel.
Noncombustible shields installed 1” (25 mm) from the
combustible surface on noncombustible spacers, called
ventilated shields, may be used to reduce clearances.
To protect a mantel from the heat of an Encore in a
fireplace installation, use a custom-made ventilated
mantel shield that is at least 48” (1219 mm) long, that is
centered over the stove. (Fig. 15) Ventilated shields for
side trim must extend the full length of the trim.
An unprotected mantel (“A”, Fig. 16) cannot be more
than 9 (229 mm) deep and must have a minimum clearance of 38” (965 mm), measured from the stove’s top
plate. With a ventilated shield, this clearance may be
reduced safely to 22” (559 mm).
Metal
Screening
Noncombustible
Spacer and
Fasteners
Fireplace Mantel and Trim Shields
Wall
Shield
Metal Lathe or
Noncombustible
Spacers
Airflow
ST248
Fig. 14 Approved wall shield construction.
Unprotected top trim (B) protruding 3/4” (19 mm) or less
from the face of the fireplace must be a minimum of 27”
(686 mm) from the stove’s top surface. With a ventilated
trim shield, this clearance may be reduced safely to 20”
(508 mm).
Unprotected side trim (C) that protrudes 3/4” (19 mm)
or less from the face of a fireplace must have a minimum
clearance of 10” (254 mm), measured from the stove’s
top side edge. If the trim extends more than 3/4” (19 mm),
it is subject to the requirements for wall clearance.
The charts and sample installations that follow list all
the clearances required for the various installation configurations of the Encore.
Chimney
Connector Heat Shields
ST248
wall shield
Chimney Connector
Heatconstruction
Shields should be used when
12/14/99
it is necessary to protectdjt
nearby combustibles from the
heat of the connector. The ceiling above horizontal runs
of chimney connector must be protected as well if the
clearance is inadequate.
In top-exiting installations, the connector shield must
extend to a point exactly 36” (914 mm) above the flue
collar or to an elbow in the connector, whichever is less.
If the top-exiting connector extends to the ceiling where
it connects with a prefabricated insulated metal chimney, an additional ceiling heat shield must be installed
that is 24” (610 mm) in diameter and that extends 1” (25
mm) below the ceiling. The ceiling shield must be constructed of 24 gauge or heavier sheet metal, and must
be centered on the chimney.
12
1" (25mm)
1/4" (6mm)
ST501
Fig. 15 A custom formed mantel shield.
ST501
mantel and
trim shield
11/10/00 djt
30002425
Encore 1450 Non-Catalytic Woodburning Stove
A
Side
Wall
B
36" Use recommended
Max. floor protection
C
C
7/16” Durock®
(or equivalent)
spaced 1” off
wood studs on
noncombustible
spacers
48" Min.
ST502
D
Fig. 17 Floor plan. Sheetrock on front face butts to Durock®
(or equivalent) alcove lining.
ST253b
Fireplace and Mantel Trim Clearances
Unprotected
Protected
A. Mantel
38” (965 mm)
22” (559 mm)
B. Top Trim
27” (686 mm)
20” (508 mm
ST253b
C. Side Trim
10” Encore
(254 mm)
-D. Side Wall
18” trim
(457
mm)
8” (203 mm)
clearances
Joist Shield
(Supplied
by Chimney
Manufacturer)
ST502
Intrepid
Alcove floor plan
11/10/00 djt
02/01 djt
Fig. 16 Maintain clearances to combustible components of
the mantelpiece.
Metal
Stud
Alcove Installations
Because of their restricted air flow and heat retention characteristics, alcove installations have specific
construction requirements and special clearances. No
rear stove or chimney connector heat shields are used
in alcove installations. Bottom heat shield requirements
remain the same as for other installations.
1” Air gap top
to bottom, on
both sides and
back wall
Combustible
facing may
overlap metal
studs by 1”
7/16” Durock®
(or equivalent)
ALCOVE INSTALLATION OF THE ENCORE IS NOT
PERMITTED IN CANADA.
Construction Requirements
The following illustrations show noncombustible ceiling
framing and maximum and minimum permitted dimensions for alcove construction.
30002425
ST503
Fig. 18 Alcove side section.
ST503
Alcove side view
11/10/00 djt
13
Encore 1450 Non-Catalytic Woodburning Stove
Ceiling support package
extends 2”
below Durock®
(or equivalent)
ceiling
1” air gap,
top and bottom, on both
sides and
back wall
ST504
Fig. 19 Cutaway perspective of acolve installation.
Existing Combustible Framing
St504
Alcove cutaway
11/00
60" Min.
to Alcove
Ceiling
NOTE: From
60” to 63”
must be
covered by a
noncombustible material.
ST506
Fig. 21 Front Section; 63” min. clearance from finished floor
surface to combustibles on front face. Combustible facing
may overlap metal studs by only 1”. It should not extend below the height of the noncombustible ceiling.
21���"
12"
Min.
Metal studs
support 7/16”
Durock® (or
equivalent)
ceiling
63"
36"
Max.
ST506
Alcove front view
11/00
14���"
43" Min.
ST505
Fig. 20 Reflected ceiling plan.
ST505
Alcove Ceiling plan
11/00
14
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Encore NC Clearance Chart
For use with either 6” or 8” flue collar/chimney connection
Unprotected Surfaces
Protected Surfaces
Stove Clearance
Stove Installed
Parallel to Wall
Top Exit, single wall connector without shields,
vertical flue collar heat
shield installed (except
where noted)
Top Exit, single-wall
chimney connector heat
shields2, vertical flue collar h.s. installed
Rear Exit
Top Exit, double-wall
chimney connector,
vertical flue collar heat
shield installed
Stove
in Corner
Stove Installed
Parallel to Wall
Side
Rear
Corners
Side
(A) 17”
(432 mm)
(B) 29”
(737 mm)
(C) 28”
(711 mm)
(G) 17”
(432 mm)
(H) 17”
(432 mm)
(M) 18”
(457 mm)
(G) 18”
(457 mm)
Stove
in Corner
Rear
Corners
(D) 8”
(203 mm)
1,4
(E) 15”
(380 mm)
(F) 8”1,4
(203 mm)
(I) 19”
(483 mm)
(J) 8”1
(203 mm)
(K) 11”1
(280 mm)
(L) 7”1
(178 mm)
(N) 24”5
(610 mm)
N/A
(P) 8”
(203 mm)
(Q) 6” Collar
11” (279 mm)
8” Collar
19” (483 mm)
N/A
(H) 6” Collar
23” (584 mm)
8” Collar
17” (432 mm)
(I) 19”
(483 mm)
1,4
*
Chimney Connector Clearance
Single-wall connector,
No chimney connector
heat shields
21” (533 mm)
7” (178 mm)
Single-wall connector,
Chimney connector heat
shields installed
9” (229 mm)
3” (76 mm)3
Double-wall connector
6” Connector
15” (381 mm)
8” Connector
9” (229 mm)
*
Clearance to Combustibles in Front of Stove
All Installations (S) 48” (1219 mm)
* Clearances with double-wall connectors and protected surfaces have not been tested for the Encore NC.
1. A ceiling heat shield, 24” (610 mm) in diameter and suspended 1” (25 mm) from the ceiling, must surround the chimney connector in installations in which the chimney connector penetrates the ceiling.
2. The chimney connector shield extends only to 36” (914 mm) above the flue collar.
3. The ceiling heat shield required when the chimney connector shields are used should meet the wall protector. This will require
trimming the ceiling shield along the line of intersection with the wall protector.
4. The vertical collar heat shield is not required when wall protection is installed according to this manual.
5. All rear exit installations require a wall shield when combustible material is within 12” (305 mm) of the center of the rear wall
pass through. The shield must be 24” (610 mm) in diameter, be spaced 1” (25 mm) from the wall and must surround the chimney connector.
30002425
15
Encore 1450 Non-Catalytic Woodburning Stove
Encore Clearance Diagrams
For use with either 6” or 8” flue collar/chimney connector
Unprotected Surfaces
Stove Installed
Parallel to Wall
Protected Surfaces
Stove Installed
Parallel to Wall
Stove in Corner
Stove in Corner
Top Exit Installations, No Stove Heat Shields, collar heat shield installed.
C
B
A
C
F
E
D
F
Top Exit Installations, vertical collar heat shield, and chimney connector heat shields or double-wall connector.
I
H
G
J
I
L
K
L
Rear Exit Installations.
N
Q
N/A
M
N/A
P
ST628
Encore Clearance
Diagrams
02/01
16
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Wall Shield Requirements for Common Installations
A
B
B
C
D
E
A
B
C
D
E
=
=
=
=
=
30” (762 mm)
48” (1219 mm)
66” (1676 mm)
36” (910 mm)
1” (25 mm)
E
E
A
B
B
D
C
E
E
A
B
C
D
E
=
=
=
=
=
E
ST628
Fig. 22 Parallel installation, vertical chimney connector,
two wall shields. Reduced clearances for both rear and side
walls. Wall shields may meet at corner if desired. Shielding for
connector is centered
ST629 behind connector.
Encore
wall shield
02/01
ST629a
Fig. 23 Parallel installation, vertical chimney connector,
with stove, connector and wall shields. Maximum reduction
for both rear and side wall. Wall shields may meet at corner if
desired. A heat shield 24” (610mm) in diameter suspended 1”
ST629a
(25mm) below the
ceiling must surround the chimney.
Encore
wall shield AA
02/01
A = 48” (1219 mm)
B = 36” (910 mm)
C = 1” (25 mm)
A
A
B
C
ST630
Fig. 24 Parallel installation with rear wall pass-through,
two wall shields. Reduced clearances to both rear and side
walls. Wall shieldsST630
may meet at corner if desired. Shielding for
Enc
connector is centered
behind connector. Wall pass-through
Wall shield
must comply with Bcodes. (See “Special Installations”)
02/01
E
E
A
B
D
E
A
B
D
A
B
C
D
E
=
=
=
=
=
29” (737 mm)
45” (1143 mm)
16” (406 mm)
36” (910 mm)
1” (25 mm)
ST631
Fig. 26 Corner installation, vertical chimney connector,
with rear, stove,ST631
connector and wall shields. Wall shields
Encore
MUST meet at corner.
Connector heat shield extends 36”
Wall shield
(914 mm) above C02/01
flue collar. A 24” (610 mm) diameter ceiling
heat shield must surround the chimney and be suspended 1”
(25 mm) from ceiling.
30002425
E
F
=
=
=
=
=
=
30” (762 mm)
23” (584 mm)
44” (1118 mm)
66” (1676 mm)
36” (910 mm)
1” (25 mm)
F
ST630a
Fig. 25 Parallel installation with rear wall pass-through
with stove, connector and wall shields. Wall shields may
meet at corner if desired.
ST630a Connector shield extends 36” (914
Encore
mm) above flue collar,
or to the elbow whichever is less.
Wall shield
Height “D” must beBB66” (1676mm) or reach the thimble. Pass02/01
through must comply
with codes. (See “Special Installations”.)
E
A
B
C
D
E
E
A
C
B
D
E
C
C
D
A
B
C
D
E
F
B
A
B
C
C
30” (762 mm)
44” (1118 mm)
36” (910 mm)
66” (1676 mm)
1” (25 mm)
E
A
B
=
=
=
=
=
29” (737 mm)
45” (1143 mm)
16” (406 mm)
36” (910 mm)
1” (25 mm)
D
E
ST631a
Fig. 27 Corner installation, vertical chimney connector,
ST631a
two wall shields. Reduced
side clearances. Wall shields
Encore
MUST meet at corner.
A
24”
(610 mm) diameter ceiling heat
Wall shield
CC the chimney and be suspended 1” (25
shield must surround
02/01
mm) from ceiling.
17
Encore 1450 Non-Catalytic Woodburning Stove
Distance from the Center of the Flue Collar to the Wall in Top-Exit Installations
The information on this page is helpful in planning stove placement for top-exiting installations, particularly those installations with chimneys that pass through the ceiling. However, this is not a clearance chart. Final stove clearances
must adhere to the guidelines stated in the clearance chart on Page 15.
Dimensions indicated are valid for installations with either 6” or 8” flue collars.
Encore: WITHOUT Chimney Connector Heat Shields
Unprotected Surfaces
Protected Surfaces
Corner
Installations**
Parallel Installations
Corner
Installations**
Parallel Installations
Side (a)
Rear (B)
Side (A)
Side (D)
Rear (E)
Corner (F)
30¹⁄₂”
(775 mm)
25¹⁄₄”
(641 mm)
34¹⁄₂”
(876 mm)
21¹⁄₂”
(546 mm)
11¹⁄₄”
(286 mm)
14¹⁄₂”
(368 mm)
A
B
D
C
E
F
*
*
ST632
* This distance, from the center of the flue collar to the front edge of the hearth, is the same for all installations on this page:
35¹⁄₄” in the United States and 37¹⁄₄” (946 mm) in Canada.
ST632
Encore
flue centerline
Encore: WITH Chimney
Connector Heat Shields
Diagrams
Unprotected Surfaces
Protected Surfaces
2/01
Corner
Corner
Parallel Installations
Installations**
Parallel Installations
Installations**
Side (A)
Rear (B)
Corner (C)
Side (D)
Rear (E)
Corner (F)
30¹⁄₂”
(775 mm)
13¹⁄₄”
(337 mm)
25¹⁄₂”
(648 mm)
21¹⁄₂”
(546 mm)
7¹⁄₄”
(184 mm)
13¹⁄₂”
(343 mm)
A
B
D
C
E
F
ST632a
**To locate center of flue collar for corner installation, add 6¹⁄₂” (165 mm) to the clearance distance from stove corner to wall.
Mark off the resulting distance from the corner along both walls. Next, measure the same distance from these two points out
from the walls. These last two measurements will meet at a point representing the center of the flue collar. Refer to the diagrams above.
18
ST632a
Encore
flue centerline
Diagrams
02/01
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Assembly
Adjust the Leg Levellers
Set Up Your Stove
Cast iron stoves are heavy, and it will take two to four
people to move your Encore into position.
Wipe the protective
coating of oil from
the griddle with a
clean dry rag or a
paper towel.
Lift the stove slightly so there is no weight on the leg
while making the adjustment.
Reverse the Flue Collar (If Necessary)
Install the handle
on the griddle.
First, place the
griddle upside
ST516
down at the edge
Fig. 28 Attach the griddle handle.
of a flat surface and
assemble the handle as shown.
ST516
With the handle pointing 45° from its final
position,
Attach
tighten the nut as far as possible with griddle
the pliers.
Move
handle
the handle to its final position while still
holding
the
11/17/00 djt nut
with the pliers.
Install the Bottom Heat Shield
NOTE: The Bottom Heat Shield is required in most installations. Refer to Floor Protection, Page 9, for further
details.
1. Remove the four 10-24 x 1/2” hex head bolts from
the corners of the ash drop on the stove bottom.
2. Align the bottom heat shield against the spacers with
the outside air knockout hole toward the rear of the
stove.
3. Secure the shield with the four (4) hex head bolts
removed from the stove bottom previously.
4. Tighten securely.
Reverse the flue collar by removing the two (2) screws
that attach it to the back of the stove. Be sure the gasket around the flue collar opening is in position when
you screw the collar back onto the stove.
Attach the Primary Air Thermostat Handle
The primary air thermostat handle is the smaller of the
two black handles. Secure the handle to the stub on
the right side of the stove with an 8-32 x 2” slot head
machine screw.
Attach the Damper Handle
Use the 1/4” -20 x 3” screw to attach the damper handle
to the damper stub on the left side.
Assemble the Removable Insert Handle
The white removable insert handle opens and closes
the front doors. Remove after each use so it won’t get
hot. Store it in the handle holder installed behind the
right front leg. Assemble the handle by passing the 3³⁄₈"
screw through the ceramic shaft and into the bright
metal nub. Tighten carefully until snug.
Bottom Heat
Shield
ST635
Rear
Fig. 30 Attach thermostat handle.
ST635
Encore
Install thermostat
handle
2/01
Bolts
ST853
Fig. 29 Use four (4) bolts to attach the bottom heat shield.
ST540
Fig. 31 Assemble the front door handle.
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19
ST540
Encore 1450 Non-Catalytic Woodburning Stove
Fan Kit Installation
1. Remove the sheet metal outer back shown in Figure
32.
2. Attach the fan assembly at the bottom edge of the inner back with two (2) 1/4-20 x 3/4” hex head screws
and one (1) 1/4” star washer.
3. Attach snapstat to the mounting holes on the underside of the bottom with two (2) 1/4-20 pan head
screws.
4. Attach the rheostat holder, (provided with stove),
under the right wing of the bottom heat shield with
two (2) #10 sheet metal screws.
5. Attach the rheostat to its holder by inserting the
rheostat control shaft through the holder hole. Install
the retaining ring and rheostat onto the shaft.
6. Secure the rheostat cable to the underside of the
bottom heat shield using the wire tie provided on the
hole at the right rear edge of the heat shield.
7. Fan will not operate until stove reaches approximately 109°F.
8. Replace the sheet metal outer back.
20
Rheostat
Knob
Rheostat
Snapstat
Screws
ST848
Fig. 32 Fan installation (Kit # 2767).
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Encore 1450 Non-Catalytic Woodburning Stove
Operation
The Encore NC Controls
Two controls regulate the performance of the Encore
NC: a primary air control supplies oxygen for the
fire, and a damper directs air flow within the stove to
activate and deactivate the non-catalytic combustion
system. Except when starting or reviving a fire, adding fuel or when the stove doors are open, the damper
should always be closed. Operation for extended periods with the bypass open could result in overfiring of
the stove causing a possible safety hazard and damage
to the stove.
Low Heat
High Heat
Symbols cast into the stove indicate the correct directions for opening and closing the controls. The symbols
assume that you are facing the front of the stove.
Damper Handle
Griddle Handle
Door Handle
Air Control
Lever
Door Handle
Holder (Behind leg)
Ashdoor
Handle
Andirons
ST636
Fig. 33 The Encore controls are conveniently located and
easy to operate.
ST633
A Single Air
Control Regulates
Heat Output
and Burn Time
Encore
controls
The primary air control
lever, located on the right side
of the stove, controls 2/01
the amount of incoming air for
starting, maintaining, and reviving a fire.
More air entering the stove makes the fire burn hotter
and faster, while less air prolongs the burn at a lower
heat level. High and low settings appear in Figure 34.
For the greatest air supply and maximum heat output
(but the shortest burn time), move the lever toward the
front of the stove. For a fire that will last longer with less
heat, move the lever toward the rear of the stove.
A Damper Directs Air Flow
Within the Stove
The damper handle on the left side of the stove opens
and closes the damper to direct air flow within the
stove.
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ST637
Fig. 34 The handle may be positioned anywhere between the
two extremes for different heat levels.
The damper is open when the handle points to the
back of the stove, enabling smoke to pass directly into
the chimney. The damper must be open when starting
or reviving a fire, and before and whenever the griddle
or doors are opened.
ST637
encore
Air control
When closing the damper, be sure to pull firmly
enough to snap it into the locked position.
2/01
The damper is closed when the handle points forward.
Smoke from the fire is directed through the secondary
combustion system where it can be further burned for
greater efficiency, before passing up the chimney.
Damper Positions
Open
(Updraft Mode)
Closed
(High Efficiency
Mode)
ST638
Fig. 35 The damper is either open or closed. There are no
intermediate positions.
Two Ways to Add Fuel
ST638
Encore
However, the front doors open as well for adding an occasional log to a fire. If equipped
with the control
8” (203 mm)
damper
flue collar, the front doors may be opened (or even removed) and the optional Encore
2/01spark screen placed in
The Encore’s griddle lifts for convenient top-loading of
logs, and is the easiest way to regularly add fuel.
21
Encore 1450 Non-Catalytic Woodburning Stove
The Encore may be used as a fireplace with the
front doors open or removed, BUT only when it is
equipped with an 8” (203 mm) flue collar and only
when the optional spark screen is placed correctly
in the opening to protect against the possibility of
sparks and embers leaving your stove. The test
standard for your stove when it is operated in this
mode is UL 737.
Handle
Use only the Encore spark screen, item #0127, with
your Encore. Encore spark screens are available
from your Vermont Castings’ Dealer.
ST849
Fig. 36 The Encore’s hinged griddle makes it easy to topload wood.
the opening for open-fire viewing. The Encore is not
approved for operation with the front doors open if
equipped with the optional 6” (150 mm) flue collar.
To open the front doors, insert the handle into the door
latch stub and turn it clockwise.
����� (Fig. 37)
Clockwise to
OPEN
������������
����
Counterclockwise
to CLOSE
The inner surfaces of the infrared reflective glass
panels are kept at a higher temperature than the outer
surface. This design, along with a preheated ‘airwash,’
makes clear fire viewing possible at most levels of
operation.
Andirons Help Protect the Glass
Your stove has andirons to keep logs away from the
glass panels. The andirons are essential to maintain
clear fire viewing, and should be left permanently in
place. Since the andirons may slightly hinder refueling
through the front doors, many stove owners will prefer
the convenience of top loading through the griddle.
Burn Only High-Quality Wood
ST544
Fig. 37 To open the front doors, turn the handle clockwise.
To close them, always close the left door first. Turn
the handle in the right door first clockwise to the open
position and swing the door closed. Finally, push on the
door as you turn the handle counterclockwise (down).
The doors will draw in slightly, and the handle should
offer some resistance as you turn it to the closed position.
To reduce the risk of breaking the glass, avoid striking
the glass or slamming the doors.
When not using the door handle, store it in the holder
behind the right front leg of the stove.
(Fig. 33)
ST544
WARNING: For safety and greatest
doorefficiency,
open
operate your stove only with all doors/griddles fully
11/00
closed. The test standard for your
stove when it is
operated in this mode is UL 1482.
22
Infrared Reflective Glass Panels
for Clear Fire Viewing
The Encore is designed to burn natural wood only; do
not burn fuels other than that for which it was designed.
You’ll enjoy the best results when burning wood that
has been adequately air-dried. Avoid burning “green”
wood that has not been properly seasoned, or cordwood dried more than two years. Do not burn construction materials; they often contain chemicals and
metals that are harmful to the stove, chimney system
and the environment. The wood should be 18-20” (457610 mm) in length.
The best hardwood fuels include oak, maple, beech,
ash, and hickory that has been split, stacked, and airdried outside under cover for at least one year.
If hardwood is not available, you can burn softwoods
which include tamarack, yellow pine, white pine, Eastern red cedar, fir, and redwood. These too should be
properly dried. The basic difference between hard and
soft wood is their density. Hardwoods, because of their
greater density, burn longer than softwoods and can
increase the time between refuelings.
Store wood under cover to keep it dry. The longer it
is stored in a dry condition, the better heating and fire
viewing performance you will enjoy. Even for short-term
storage, however, keep wood a safe distance from the
heater and keep it out of the areas around the heater
used for refueling and ash removal.
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Encore 1450 Non-Catalytic Woodburning Stove
Use the Air Control Settings
that Work Best for You
No single air control setting will fit every situation. Each
installation will differ depending on the quality of the
fuel, the amount of heat desired, how long you wish the
fire to burn, climactic conditions; outdoor air temperature and pressure may also effect draft.
The control setting also depends on your particular
installation’s “draft,” or the force that moves air from the
stove up through the chimney. Draft is affected by such
things as the length, type, and location of the chimney,
local geography, nearby obstructions, and other factors.
Refer to Pages 25-27 for details on how the installation
affects performance.
Too much draft may cause excessive temperatures in
the Encore, and could even damage the stove. On the
other hand, too little draft can cause backpuffing into
the room and/or the “plugging” of the chimney.
How do you know if your draft is excessively high or
low? Symptoms of too much draft include an uncontrollable burn or a glowing-red stove part. A sign of inadequate draft is smoke leaking into the room through the
stove or chimney connector joints, low heat output and
dirty glass.
In some newer homes that are well-insulated and
weather-tight, poor draft may result from insufficient air
in the house. In such instances, an open window near
the stove on the windward side of the house will help
provide the fresh air needed.
Another option for getting more combustion air to the
stove is to duct air directly from outdoors to the stove.
In some areas provisions for outside combustion air are
required in all new construction.
Your Encore is equipped to deliver outside air for combustion.
When first using the stove, keep track of the air control
settings. You will quickly find that a specific setting will
give you a fixed amount of heat. It may take a week or
two to determine the amount of heat and the length of
burn you should expect from various settings.
Burn Rate
Encore Control Settings
Primary Air Control
Low
From far right to 1/3
the distance to left
Medium
From 1/3 to 2/3 the distance
to left
High
From 2/3 the distance
to left to far left
DO NOT OPERATE THE STOVE WITH THE ASH
DOOR OPEN. OPERATION WITH THE ASH DOOR
OPEN CAN CAUSE AN OVERFIRING CONDITION
TO OCCUR. OVERFIRING THE STOVE IS DANGEROUS AND CAN RESULT IN PROPERTY DAMAGE,
INJURY OR LOSS OF LIFE.
Conditioning Your Stove
Cast iron is extremely strong, but it can be broken with
a sharp blow from a hammer or from the thermal shock
of rapid and extreme temperature change.
The cast plates expand and contract with changes in
temperature. When you first begin using your Encore,
minimize thermal stress by allowing the plates to adjust
gradually during three or four initial break-in fires.
Starting and Maintaining a Wood Fire
Burn only solid wood in the Encore, and burn it directly
on the grate. Do not elevate the fuel. Do not burn coal
or other fuels.
The bypass damper must be open when starting a
fire or when refueling.
Do not use chemicals or fluids to start the fire. Do
not burn garbage. Never use flammable fluids such
as gasoline, gasoline type lantern fuel, kerosene,
charcoal lighter fluid, naptha, engine oil or similar
liquids to start or “freshen up” a fire in this heater.
Keep all such liquids well away from the heater
while it is in use.
Most installations do not require a large amount of combustion air, especially if adequate draft is available. Do
not attempt to increase the firing of your heater by
altering the air control adjustment range outlined in
these directions.
Use the following air control settings as a starting point
to help determine the best settings for your installation.
Each is described as a fraction of the total distance the
lever may be moved from right to left.
ST263
Fig. 38 Start fire with newspaper and dry kindling.
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ST263
starting a fire
12/99
23
Encore 1450 Non-Catalytic Woodburning Stove
Refuel While the Embers Are Still Hot
When reloading, best results will be achieved if you first
de-ash the stove by stirring the fuel bed to allow ash to
fall through the grate into the ash pan.
Do not break the charcoal into very small pieces or
pound or compress the charcoal bed.
It is important that air can circulate through the charcoal
bed while the heater is in operation. Larger pieces of
charcoal allow more air to circulate under the wood,
resulting in the fire reviving more quickly.
ST265
Fig. 39 Add larger pieces of wood as the fire begins to burn
well.
During the break-in fires, do not let the stove get hotter
than 500°F (260°C)
as measured on an optional stoveST264
top thermometer. Adjust
the air control lever as necesgood fire
sary to control the fire.
12/99
Some odor from the stove’s hot metal, the paint, and
the cement is normal for the first few fires.
NOTE: Some chimneys need to be “primed,” or
warmed up, before they will draw sufficiently to start
a fire. To correct this situation, roll up a couple pieces
of newspaper, place them on top of the kindling and
toward the back of the stove, light them, and close the
doors. This will encourage smoke to rise rapidly, encouraging a good draft.
Once the draft is established, open the front door and
light the rest of the fuel from the bottom. Do not light
the main bed of fuel until the chimney begins drawing,
and repeat the procedure as often as necessary if the
initial attempt is unsuccessful.
If your Encore has been broken-in previously using,
continue to build the fire gradually. Add larger wood with
a diameter of 3-4” (76-102 mm). Continue adding split
logs of this size to the briskly-burning fire until there is
a glowing ember bed at least 3” (76 mm) deep. A good
ember bed is necessary for proper functioning of the
combustion system and may take an hour or more to
establish.
For best results when refueling, wear stove gloves to
protect your hands, add fuel while the stove still has
plenty of glowing embers to re-kindle the fire, and
include some smaller pieces of wood in the new fuel
load to help the stove regain its operating temperature
quickly. Use this sequence as a guide to successful
refueling:
1. Open the damper.
2. De-ash the stove as described above. Open the
front doors and check the level of ash in the ash
pan. Empty the pan if necessary and replace it in the
stove. Close the front doors.
3. Open the griddle, load the wood (smaller pieces
first), and close the griddle.
4. Allow the stove to regain its “thermal momentum”
before closing the damper. This may take 15--20
minutes.
5. Close the damper and set the air control lever for the
desired heat output. When the surface temperature
reaches 450°F (230°C), adjust the air control for the
amount of heat you desire.
NOTE: If the charcoal bed is relatively thick {about 2”3” (52-76 mm)} deep, and if your fuel is well seasoned,
it is possible to add fresh fuel (smaller pieces first),
close the door and damper, and reset the primary air
control for the desired heat output within five minutes.
WARNING: FIREPLACE STOVES EQUIPPED WITH
DOORS SHOULD BE OPERATED ONLY WITH
DOORS FULLY OPEN OR DOORS FULLY CLOSED.
IF DOORS ARE LEFT PARTLY OPEN, GAS AND
FLAME MAY BE DRAWN OUT OF THE FIREPLACE
STOVE OPENING CREATING RISKS FROM BOTH
FIRE AND SMOKE.
CAUTION: The Encore will be hot while in operation. Keep children, clothing and furniture away.
Contact may cause skin burns.
ST264a
Fig. 40 Add full-size logs when the kindling has burned down
to a bed of embers.
DO NOT OVERFIRE THIS HEATER. Overfiring may
cause a house fire, or can result in permanent damage to the stove. If any part of the Encore glows, you
are overfiring.
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24
ST264a
add wood fire
Encore 1450 Non-Catalytic Woodburning Stove
Ash Removal and Disposal
You should remove ash before it reaches the top of the
ash pan. Check the level at least once a day. Every few
days, clear any ash from the outer edges of the firebox
and the cavity areas of the stove. Most of the ash will
fall through the grate. Slice or stir the ash with a shovel
or poker so that it falls through the grate slots.
• Remove the ash pan, making sure to keep it level.
• To keep the cover from sliding off and to keep ash
•
•
•
Open
Close
ST545
Fig. 41 Turn the handle to the ash pan compartment clockwise to open and counterclockwise to close.
IMPORTANT: Check the level of ash in the ash pan
ST545
before reloading the stove. If the ash level is close to
the top edge ashdoor
of the pan, empty the pan according to this
procedure: 11/00
• Open the damper.
• Open the griddle or front doors, and use a shovel or
•
•
poker to stir excess ash through the ash slots in the
grate down into the ash pan.
Close the griddle or doors, and unlatch the ash door.
It will pivot, swinging the ash pan out of the stove.
Slide the cover onto the pan, making sure it is securely closed. (Fig. 42)
from falling on the floor, do not tilt the ash pan forward.
If the stove is in operation, close the ash door while
disposing of the ash.
Properly dispose of the ash in a metal container with
a tight-fitting lid. Store the container outdoors away
from all combustible material.
Return the ash pan to its original position in the
stove, and close and latch the ash door.
Do not operate the stove with the ash door open.
This will result in over-firing, and could cause damage to the stove, void the warranty, or even lead to a
house fire.
Empty the ash pan regularly, typically every one to
three days. The frequency will vary depending on how
you operate your Encore: ash will accumulate faster at
higher heat outputs.
Remove ash frequently and place it outdoors in a
metal container with a tight-fitting lid. Place the closed
container of ash on a noncombustible floor or on the
ground, well away from all combustible materials, pending final disposal. If the ash is disposed of by burial in
soil or otherwise locally dispersed, it should be kept in
the closed container until all cinders have thoroughly
cooled.
You can use wood ash as a garden fertilizer.
CAUTION: Never use your household or shop vacuum
cleaner to remove ash from the stove; always remove
and dispose of the ash properly.
ST566
Fig. 42 Be sure the cover is securely attached before removing the ash pan.
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25
Encore 1450 Non-Catalytic Woodburning Stove
Draft Management
A stove is part of a system which includes the chimney, the operator, the fuel and the home. Each part of
the system affects how well the stove operates. When
there is a good match between all the parts, the system
works well.
Wood stove or insert operation depends on natural
(unforced) draft. Natural draft occurs when the smoke
is hotter (and therefore lighter) than the outdoor air
at the top of the chimney. The larger the temperature
difference, the stronger the draft. As the smoke rises
from the chimney it provides suction or ‘draw’ that pulls
air into the stove for combustion. A slow, lazy fire with
the stove’s air inlets fully open indicates a weak draft.
A brisk fire, supported only by air entering the stove
through the normal inlets, indicates a good draft. The
stove’s air inlets are passive; they regulate how much
air can enter the stove, but depend entirely on the draft
of the chimney.
Depending on the features of your installation - (i.e.
metal or masonry chimney installed, inside or outside
the house, matched to the stove’s outlet or oversized) your system may warm up quickly or it may take a while
to warm up and operate well. With an ‘airtight’ stove or
insert, one which restricts the amount of air getting into
the firebox, the chimney must keep the smoke warm all
the way to the outdoors. Some chimneys do this better
than others. Here is a list of features and their effects.
Masonry Chimney
Masonry is a traditional material for chimneys, but it
can perform poorly when it serves an ‘airtight’ stove.
Masonry is a very effective ‘heat sink’ - it absorbs a lot
of heat. It can cool the smoke enough to diminish draft.
The bigger the chimney, the longer it takes to warm up.
It’s often very difficult to warm up an outdoor masonry
chimney, especially an oversized one, and keep it warm
enough to maintain an adequate draft.
Metal Chimney
Most factory-made metal chimneys have a layer of
insulation around the inner flue. This insulation keeps
the smoke warm. The insulation is less dense than masonry, so a steel chimney warms up more quickly than
a masonry chimney. Metal doesn’t have the good looks
of masonry, but it often performs much better.
Indoor / Outdoor location
Because the chimney must keep the smoke warm, it is
best to locate it inside the house. The relatively warm
house then surrounds the chimney keeping it warm.
This also means that heat from the chimney walls will
transfer to the house and not be wasted outdoors. An
indoor chimney will not lose its heat to the outdoors, so
26
it takes less heat from the stove to heat it up and keep
it warm.
Flue Sizing
The interior size of a chimney for an ‘airtight’ stove
should match the size of the stove’s flue outlet. When a
chimney serves an airtight stove, “more” is not “better”;
in fact, it can be a disadvantage. Exhaust gases move
more slowly through larger chimneys and can lose
more heat to the chimney walls. This weakens the draft
strength. If an oversized flue is also outside the house,
the heat it absorbs gets transferred to the outdoor air
and the flue is further cooled.
It’s common for a masonry flue, especially one serving
a fireplace, to be oversized for the stove. It can take
quite a while to warm up such a flue, and the results
can be disappointing. The best solution to an oversized
flue is an insulated steel chimney liner, the same diameter as the stove or insert’s flue outlet; the liner keeps
the exhaust warm, and the result is a stronger draft. An
uninsulated liner is a second choice - the liner keeps
the exhaust path restricted to its original size, but the
air around the liner must still be heated. This makes the
warm-up process take longer.
Pipe & Chimney Layout
Every turn the exhaust must take as it travels to the
chimney top will slow it down. The ideal pipe and chimney layout is straight up from the stove, and into a vertical chimney. If you are starting from scratch, use this
layout if possible. If the stovepipe must turn to enter a
chimney, locate the thimble about midway between the
stove top and the ceiling. This achieves several goals:
it allows the exhaust gases to speed up before turning,
it leaves some pipe in the room for heat transfer, and
gives you long-term flexibility to install a future stove
without relocating the thimble.
There should be no more than 8 feet (2.4m) of singlewall stove pipe between the stove and a chimney; longer runs can cool the exhaust gases enough to cause
draft and creosote problems. Use double-wall stove
pipe for long runs.
Single venting
Each ‘airtight’ stove requires its own chimney. If an airtight stove is vented to a flue that also serves an open
fireplace, it is easier for the chimney draft to pull air
in through those channels than it is to pull air through
the stove, and performance suffers. Imagine a vacuum
cleaner with a hole in the hose to see the effect here.
In some cases the other appliance can even cause a
negative draft through the airtight, and result in a dangerous draft reversal.
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Encore 1450 Non-Catalytic Woodburning Stove
Creosote
Draft Testing
Creosote is a by-product of slow wood-burning. It is an
organic tar that can condense in the flue if the exhaust
gases cool too much. Condensed creosote is volatile,
and can fuel chimney fires if it gets hot enough. All the
factors that affect chimney draft also affect creosote
condensation - so use installation features and operational steps that encourage good draft and minimize
creosote production.
Because letting the smoke cool off and slow down is
one of the keys to creosote production, it makes sense
to line a chimney to match the stove’s outlet size, for
safety reasons as well as performance. Canadian law
requires a matching liner to serve any stove or insert
vented through a fireplace chimney; in the US, the National Fire Protection Association recommends a liner if
the chimney is more than three times bigger (in square
area) than the outlet on the stove or insert. Some localities enforce the NFPA guidelines as part of their building codes.
An easy way to test your chimney draft is to close the
stove’s damper, wait a few minutes to let the airflow
stabilize, then see whether you can vary the strength
of the fire by swinging the air control open and closed.
Results are not always instant; you may need to wait
a few minutes for a change in the air control setting to
have an effect on the fire. If there’s no change, then the
draft isn’t strong enough yet to let you close the damper,
and you’ll need to open it for a while longer and manage
the fire with the air inlet until the draft strengthens.
Test chimney draft with a draft gauge.
Fuel
Even the best stove installation will not perform well
with poor fuel. The best fuel is hardwood that has airdried 12-18 months and is stored, covered from the
elements. Softwoods burn well, but not as long as hardwood. ‘Green’ wood has more moisture in it; it will burn,
but more of the heat from the fire is needed to drive the
extra moisture off the wood. This reduces the amount
of heat that reaches your home and can contribute to a
creosote problem. There are moisture meters available
for firewood; you can also judge your wood by its appearance and weight. If you get it green, lift a piece and
get a sense of its weight; it can lose a third or more of
its weight as it dries. Also look at the ends of a log; as it
dries it shrinks and often cracks. The more weathered
and cracked a piece is, the drier it is.
Back-puffing
Negative Pressure
Good draft also depends on a supply of air to the stove;
a chimney can’t pull in more air than is available to it.
Sluggish draft results when a house is tight enough to
prevent the ready flow of air to the stove, or by competition between the stove and other equipment that
removes air from the house - especially power-driven
equipment like range hoods, clothes dryers, etc. If the
chimney draws well with all other equipment turned
off (or sealed, in the case of fireplaces and/or other
stoves), then you simply need to be careful with timing
the use of the other equipment. If you need to crack a
nearby window or door to enable the chimney to pull
well, that’s a sign that you should install an outside-air
intake to bring combustion air directly to the stove. For
most of our stoves, adapters are available to connect
an air duct for outdoor combustion air.
Conclusion
Wood-burning is an art rather than a science. Once the
stove and chimney system are in place, you can only
vary your technique, mostly your timing, to achieve
good results. If you keep track of your burning habits
and relate them to their effects on the stove’s operation,
you’ll be rewarded with good performance and a safe
system.
“Back-puffing” results when the fire produces volatile
gases faster than the chimney draft pulls them out of
the firebox. The gases back up in the firebox until they
are dense enough and hot enough to ignite. If your
stove back-puffs, you should open the damper to direct
more heat up the chimney to allow the smoke to rise
to the flue more quickly, let more air into the firebox.
Smaller loads of wood, larger pieces of wood and
avoiding overly dry wood loaded into a very hot stove
may help this problem. If back-puffing persists, contact
your dealer or qualified chimney sweep to help diagnose the problem.
30002425
27
Encore 1450 Non-Catalytic Woodburning Stove
Maintenance
Keep Your Stove Looking New
and Working Its Best
Let the fire in the stove go out and allow the stove to
cool completely before beginning any maintenance
procedure.
Care of the Cast Iron Surface
An occasional dusting with a dry rag will keep the painted
cast iron of your Encore looking new.
The stove’s paint can be touched up as needed. First,
mask the areas, such as enamelled parts, glass, or
handles, around the area to be painted. Clean the area
with a wire brush to remove any loose paint or dust.
Remove the griddle and set it aside.
Then, touch up the stove with Vermont Castings’ high
temperature stove paint. Apply the paint sparingly; two
light coats of paint are better than a single heavy one.
Care of the Porcelain Enamel Surface
Use a dry or slightly damp rag or soft brush to remove
spills or stains. For difficult jobs that require a cleaning
agent, use only a kitchen appliance cleaner or polish
recommended for use on enamel surfaces.
Removing the Glass
1. Remove the right and left door assemblies by raising
the door until the lower hinge pin clears its drilling;
then, angle the door bottom slightly outward and
pull down to release the upper hinge pin. Place the
doors face down on a padded work surface.
2. Remove the screws that hold the retainer clips in
place, and remove the clips.
3. Carefully lift the broken glass panel from the door.
Installing the Glass
Check the gasket around the window; it should be soft
and resilient so the glass will seal properly against the
door. Replace the gasket if it has hardened or if it is
compressed.
1. Center the first pane of glass on the gasket. Be sure
to place the glass so the infrared reflective coating is
on the exterior side.
Right Door
Gasket
Glass Panel
Cleaning the Glass
Most of the carbon deposits on the glass will burn off
during hot fires.
Retainer
Clips (4)
However, the ash residue that accumulates on the
glass surface should be removed regularly to prevent
etching. To clean the glass, follow this procedure:
• Be sure the glass is completely cool.
• Clean the glass with water or a cleaner made espe•
•
cially for this purpose. Do not use abrasive cleaners.
Rinse the glass thoroughly.
Dry the glass completely.
Replace Broken Glass Immediately
Do not operate your stove if the glass in the doors is
damaged.
If you need to replace the glass, use only the high temperature ceramic glass supplied by Vermont Castings.
Do not use substitutes. Be sure to specify left or right
glass; the panels are not interchangeable.
28
ST854
Fig. 43 Exploded view of the glass assembly for the right
door.
2. Secure the glass on both doors with the retainer
�����a little loose.
clips, but leave the screws
3. Gradually tighten all�����������
the screws by hand a little at
a time in order to apply
even pressure to the glass
�����
panel.
Adjust the Damper as Needed
The tension on the Encore’s damper is adjustable to
compensate for compression of the gasket that seals
the damper to the upper fireback. To adjust the damper:
1. Remove the griddle. Loosen the lock nut at the center of the damper.
2. Turn the pressure screw approximately one half turn
clockwise.
30002425
Encore 1450 Non-Catalytic Woodburning Stove
3. Tighten the lock nut. Keep the pressure screw from
turning as you tighten the nut. Re-test the damper.
Lock Nut
Damper
Pressure Adjusting Screw
Replace the Stove Gaskets as Needed
Your Encore uses rope-type fiberglass gaskets to make
a tight seal between some parts. With use, particularly
on those parts that move, gaskets can become brittle
and compressed and can begin to lose their effectiveness. These will need periodic replacement.
All of the gaskets are made of fiberglass. The sizes of
replaceable gasket are listed below, along with their
applications.
Gasket Diameter
5/16”
ST642
Fig. 44 Adjusting the damper.
Tighten the Damper Handle as Needed
A handle on the left side of the stove controls the
damper. The handle
attaches to the damper rod with a
ST642
set screw. Periodically check the set screw and tighten
Encore
as necessary.
damper adjust
3/01
Adjust the Door Latches
3/8”
3/16”
5/16”
...And the Parts it Seals
The griddle to the stove top
(wire reinforced gasket)
The ash door to the front of
the ash drop, flue collar to inner back
The outer glass panes to the
doors
The damper to the
upper fireback; the front doors
to the stove front; and the
doors to each other.
The Encore’s front doors, as well as its ash pan door,
should close securely to prevent accidental opening and to keep air from leaking into the stove. On
adequately adjusted doors, the handles should resist
slightly as they are turned to the closed position and the
doors themselves should be drawn slightly toward the
stove.
If you need to change a gasket, first obtain an appropriate replacement from your Vermont Castings’ Authorized Dealer.
Over time, the gasket around the doors will compress
and the latches may need adjustment.
The procedure for replacing gaskets is the same regardless of the gasket location. Follow these steps:
To adjust the latches on the doors, loosen the small
lock nut, rotate the striker screw a half-turn, and retighten the small lock. Hold the striker screw to keep it
from turning as you tighten the lock nut. Make repeated
small adjustments until the setting is right.
1. Remove the existing gasket by grasping an end and
pulling firmly.
Wait until the fire is out and the stove has cooled. Be
sure to follow the standard safety procedure for working
with dusty materials: Wear safety goggles and a dust
mask.
2. Use a wire brush or the tip of a screwdriver to clean
the channel of any remaining cement or bits of gasket.
(Fig. 46) Remove stubborn deposits of cement with a
cold chisel if necessary.
Pawl
Small
Locking Nut
Striker Screw
Large Locking Nut
ST560
Fig. 46 Remove gasket then
clean channel with wire brush.
ST559
Set Screw
Handle Stub
ST531
Remove
gasket
11/30/00 djt
Fig. 45 Turn the door latch striker screw in or out to tighten or
loosen the door latch.
ST531
30002425
Door Pawl
11/00
29
Encore 1450 Non-Catalytic Woodburning Stove
3. Determine the correct length of the appropriatesized gasket by laying it out in the channel. Allow an
extra 1-2” (25-50 mm), and mark the spot to be cut.
(Fig. 47)
4. Remove the gasket from the channel, place it on a
wood cutting surface, and cut it at the marked spot with
a utility knife. Twist the ends slightly to keep the gasket
from unraveling.
5. Lay an unbroken 1/8” (3mm) bead of gasket cement
in the newly-cleaned channel.
6. Starting at one end, press the gasket into the channel. (Fig. 47) Ensure a good joint where the gasket
meets before trimming any excess. Do not overlap the
gasket ends or leave ends with ragged edges.
et
ask
ve G ent
Sto Cem
ST561
Fig. 47 Lay a bead of gasket cement then press gasket in
place.
7. Press the gasketedST559
part firmly against its normal
mating surface to seat Remove
the gasket evenly in its channel.
gasket
Close and latch the door
to do this, or tap other parts
11/30/00
djt
with the rubber mallet (or hammer/block
of wood).
8. Clean any excess cement from around the channel, then let the cement that holds the new gasket dry
thoroughly.
Adjust the Door If Necessary
The stove’s door(s) may need adjustment after you
have regasketed it. Initially, it may require loosening to
accommodate the new gasket; after a few weeks, it
may need tightening to compensate for compression of
the new gasket. The directions for adjusting the doors
are on Page 28.
All Gasketed Construction
Other gaskets form seals between non-moving parts,
but these are not subject to the same wear and deterioration as gaskets on moving parts. It is unlikely that
you will ever need to replace these gaskets unless the
involved parts are disassembled and then put back
together. If this is the case, the job should be done only
by a qualified service technician.
30
5/16” diameter gasket seals the following parts:
• The flue collar to the stove back
• The lower fireback to the sides
• All connections between the major stove plates
The Chimney System
Creosote
Your Encore is designed to reduce creosote build-up
significantly. However, regular chimney inspection and
maintenance must still be performed. For safety, good
stove performance, and to protect your chimney and
chimney connector, inspect your chimney and chimney
connector on a regular schedule. Clean the system if
necessary. Failure to keep the chimney and connector
system clean can result in a serious chimney fire.
When wood is burned slowly, it produces tar, organic
vapors and moisture that combine to form creosote.
The creosote vapors condense in the relatively cool
chimney flue of a slow-burning fire. As a result, creosote residue accumulates on the flue lining. When ignited, this creosote makes an extremely hot fire within the
flue system that can damage the chimney and overheat
adjacent combustible material. If a significant layer of
creosote has accumulated —1/8” (3mm) or more — it
should be removed to reduce the risk of a chimney fire.
To reduce the amount of creosote that may form, remember to provide adequate air for combustion and to
strive for small, intense fires rather than large, smoldering ones.
You can never be too safe. Contact your local fire
authority for information on what to do in the event of
a chimney fire, and have a clearly understood plan on
how to handle one.
You should inspect the system every two weeks during
the heating season as part of a regular maintenance
schedule. To inspect the chimney, let the stove cool
completely. Then, using a strong light, sight up through
the flue collar into the chimney flue. If it is not possible
to inspect the flue system in this fashion, the stove must
be disconnected to provide better viewing access.
Clean the chimney using a brush the same size and
shape as the flue liner. Flexible fiberglass rods are used
to run the brush up and down the liner, causing any
deposits to fall to the bottom of the chimney where they
can be removed through the clean-out door.
Clean the chimney connector by disconnecting the sections, taking them outside, and removing any deposits
with a stiff wire brush. Reinstall the connector sections
after cleaning, being sure to secure the joints between
individual sections with sheet metal screws.
If you cannot inspect or clean the chimney yourself,
contact your local Vermont Castings’ Dealer or a professional chimney sweep.
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Maintenance Schedule
The Chimney Connector
The Stove
TWO WEEKS:
• Inspect the chimney connector and chimney. Clean if
necessary.
TWO MONTHS:
• Inspect the chimney and chimney connector. Pay
particular attention to the horizontal runs of chimney
connector, and the elbows. Clean the system if necessary.
ANNUAL SPRING CLEANING:
• Disassemble the chimney connector and take it
outdoors for inspection and cleaning. Replace weak
sections of connector.
• Inspect the chimney for signs of deterioration. Repairs to a masonry chimney should be made by a
professional mason. Replace damaged sections of
prefabricated chimney. Your local Vermont Castings
dealer or a chimney sweep can help determine when
replacement is necessary.
• Thoroughly clean the chimney.
DAILY:
• Clear any ash build-up from around the air holes and
combustion flow path in the lower fireback.
• Ashes should be removed before they reach the top
of the ash pan. Check accumulation at least once a
day.
• Keep the area around the stove clear of any combustible materials such as wood, furniture or clothing.
TWO MONTHS:
• Check door handle to be sure it is working properly.
Gasketing becomes compressed after a period of
time. Adjust handle tightness if necessary.
• Check leg bolts and heat shield screws; tighten if
necessary.
ANNUAL SPRING CLEANING:
• Check gasketing for wear, and replace if necessary.
• Remove ashes from the ash pan and replace with a
moisture absorbing material (such as kitty litter) to
keep the interior of the stove dry.
• Clean the dust from the inner sides of bottom, rear or
pipe heat shields if your stove is equipped with them.
Clean surfaces are better heat reflectors than dirty
surfaces.
• Touch up the black paint.
• Inspect for and remove ash build-up behind the combustion package. This should be done in conjunction
with annual cleaning of the chimney connector since
this inspection is most conveniently done through the
flue collar opening. Inspect the passages to either
side of the combustion package (a mirror will be
helpful) and vacuum away ash using a flexible vacuum hose inserted into each passage. Care should be
taken not to damage the white fibrous material in this
rear chamber. (Fig. 48)
Inspect and
Vacuum Both
Rear Corners
Ash Build-up
ST856
Fig. 48 Inspect and clean out ash accumulation on either side
of the non-catalytic combustion system.
�����
���������
�����
30002425
31
Encore 1450 Non-Catalytic Woodburning Stove
69
78
47
7
12
6
71
13
8
72
9
11
1
2
21
51
5
52
42
37
10
61
32 68
60
56
67
66
52
51
12
4
20
32
73
62
3
55
59
56
22
74
64
19
54
58
45
48 49
23
25
27
50
53
42
24
77
28
18
17
57
41
14
16 46
75
53
26
44
27
65
38
34
39
15
42
35
28
36
77
76
62
70
32
43
31
40
29
30
33
0956
CFM Corporation reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time,
without notice.
����� Woodburning Stove
Encore Non-Catalytic
���������������
Model 1450
32
������������
30002425
Encore 1450 Non-Catalytic Woodburning Stove
Encore Woodburning Stove
Model 1450 (continued)
Item Description
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
21a.
21b.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
Item Description
Part Number
Flue Collar (8”)
See Chart Pg. 34
Inner Back
30002385
Left Heat Deflector
30002441
Right Heat Deflector
30002442
Left Griddle Quad
30002399
Right Griddle Quad
30002401
Griddle
30002386
Griddle Handle Assy
30002775
Top
See Chart Pg. 34
Damper Housing
30002413
Damper
30002389
Damper Tabs (3)
1601488
Damper Rod
1600851
Damper Handle Screw 1/4-20 x 3³⁄₈” NT 1201310
Damper Handle,Wood
1600664
Steel Handle Stub
30002720
Left Side
See Chart Pg. 34
Left Air Manifold (Inner side)
30002408
Right Air Manifold (Inner side)
30002409
Right Side
See Chart Pg. 34
Thermostat Handle Shaft w/set screw
30002716
Thermostat Handle Wood
1600660
Round Hd, Sl 8-32 x 2 Screw
1201243
Grate
30002390
Bottom Outer
30002391
Ashlip
See Chart Pg. 34
Andiron (2)
30002397
Leg
See Chart Pg. 34
Leg Leveler
1201745
Pawl Assembly Short Adjustment
30002362
Ashdoor
30002392
Ashdoor Handle (Wood)
1600663
Ashdoor Hinge Pin
30002473
Cotter Pin, Ashdoor
30001749
Ashdoor Hinge Lower
30002404
Ashpan
1601025
Ashpan Bracket
1601039
Ashpan Cover
1601027
Airwash Manifold
30002407
Front
See Chart Pg. 34
Left Door
See Chart Pg. 34
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
Part Number
Door Hinge Strip (2)
1308634
Right Door
See Chart Pg. 34
Door Gasket 5/16 Med. Density 6ND
1203588
Glass Gasket
1203556
Left Door Glass1
30002476
1408629
Right Door Glass1
Spacer 3/8 x 1-Z
1201779
Damper Ramp
1301811
Socket Set Screw Adjuster
1200436
PH Flat Hd Screw
1200809
Hex Nuts
1203210
Handle Base Stub
30002714
Wood Handle
1600664
Handle Bolt
1201310
Friction Spring
1201846
Washer
1202471
Pin, Long, Door
30002727
Inner Bottom
30002406
Primary Air Plate
30002415
Lower Brick Retainer
30002416
Hinge, Upper Ashdoor
30002403
Fountain Assembly CDW
30002100
Insul Gasket Shoe
30002418
Refractory Shoe
30002419
Refractory Lower
30002414
End Insulation
30002420
Right End Refractory
30002421
Left End Refractory
30002475
Primary Air Flap
30002443
Primary Air Shaft
30002841
Primary Air Linkage
30002445
Outer Back Assembly
30002450
Bottom Heat Shield
30002446
Griddle Gasket
1203668
Rear Side Bracket
30002457
Brick Support Bracket
30002480
Holder, Door Handle
30002909
Front Steel Handle w/Shaft
30002717
Ashdoor Handle Shaft
1600622
Hex Jam Nut
1203290
Bracket, Upper Side
30002667
Rheostat Bracket
30002863
1. Not interchangeable, due to a heat-reflective coating on the room
side of the panels.
30002425
33
Encore 1450 Non-Catalytic Woodburning Stove
Shell Enamel Parts - Encore NC Model 1450
Part Name
Classic
Biscuit
Bordeaux
30002615
30002613
30002612
2324280
30002614
30002610
Chestnut
Brown
30003065
30003062
30003063
30003020
30003064
30003061
Top
Left Side
Right Side
Flue Collar
Front
Ashlip
Left Door
Subassy
Left Door
Right Door
Subassy
Right Door
Single Leg
30002387
30002388
30002405
1304280
30002393
30002402
30003055
30003052
30003053
30003008
30003054
30003051
30003974* 30003984
30003938 30003958
30003976
30003950
30003975* 30003985
30003939 30003959
30002396 30003050
30003977
30003951
30002611
Ebony
30003075
30003072
30003073
30003032
30003074
30003071
Midnight
Blue
30002635
30002633
30002632
2374280
30002634
30002630
30003986
30003960
30003988
30003962
30003987
30003961
30003060
30003989
30003963
30003070
Sand
30002625
30002623
30002622
1324280
30002624
30002620
Suede
Brown
30002645
30002643
30002642
30002527
30002644
30002640
Vermont
Green
30003085
30003082
30003083
30003045
30003084
30003081
30003980
30003954
30003978
30003952
30003982
30003956
30003990
30003964
30003981
30003955
30002631
30003979
30003953
30002621
30003983
30003957
30002641
30003991
30003965
30003080
*NOTE: Does not contain glass or glass gasket.
34
30002425
Encore 1450 Non-Catalytic Woodburning Stove
LIMITED LIFETIME Warranty
For Vermont Castings Encore, Non-Catalytic Wood Stove
Limited Lifetime Warranty
CFM Corporation warrants that all refractory brick and
material used in this product will be warranted against
deterioration not resulting from physical damage or
overloading of the woodstove for the lifetime of this
product. This coverage includes the components of
the EverBurn System: “shoe, fountain, and fireback.
Coverage is provided only to the original purchaser.
Limited 3 Year Warranty
All cast iron parts are warranted for a period of three
years against breakage, cracking or burn-through.
Limited 1 Year Warranty
The following part of the woodburning stove are
warranted to be free of defects in material and workmanship for a period of one year from the date you
receive it: The handles, glass door panels, door
gasketing and porcelain finish. Any of these items
found to be defective will be repaired or replaced at
no charge, upon the return of the part with postage
prepaid to a Vermont Castings Authorized Dealer.
Any parts repaired or replaced during the limited
warranty period will be warranted under the terms
of the limited warranty for a period not to exceed the
remaining term of the original limited warranty or six
(6) months, whichever is longer.
Exclusions & Limitations
1. This warranty is non-transferable.
2. This warranty does not cover misuse of the stove.
Misuse includes overfiring, which will result if the stove
is used in such a manner as to cause one or more
of the plates to glow red. Overfiring can be identified
later by warped plates and areas where the paint pigments has burned off. Overfiring in enamel stoves is
identified by bubbling, cracking, chipping and discoloration of the porcelain enamel finish. CFM Corporation
offers no warranty on chipping of enamel surfaces.
Inspect your woodburning stove prior to accepting it
for any damage to the enamel.
3. This warranty does not cover misuse of the stove as
described in the Owners Guide, nor does it cover a
stove which has been modified unless authorized by a
CFM Corporation representative in writing. This warranty does not cover damage to the stove caused by
burning salt saturated wood, chemically treated wood,
or any fuel not recommended in the Owners Guide.
4. This warranty does not cover a stove repaired by
someone other than a Vermont Castings Authorized
Dealer.
5. Damage to the unit while in transit is not covered
by this warranty but is subject to a claim against the
30002425
common carrier. Contact Vermont Castings Authorized
Dealer from whom you purchased your stove or CFM
Corporation if the purchase was direct. (Do not operate the stove as this may negate the ability to process
the claim with the carrier).
6. Claims are not valid where the installation does not
conform to local building and fire codes or, in their absence, to the recommendations in our Owners Guide.
7. The salt air environment of coastal areas, or a highhumidity environment, can be corrosive to the porcelain enamel finish. These conditions can cause rusting
of the cast iron beneath the porcelain enamel finish,
which will cause the porcelain enamel finish to flake
off. This warranty does not cover damage caused by
a salt air or high-humidity environment.
8. CFM Corporation shall have no obligation to enhance
or update any unit once manufactured.
IN NO EVENT SHALL CFM Corporation BE LIABLE FOR
INCIDENTAL AND CONSEQUENTIAL DAMAGES. ALL
IMPLIED WARRANTIES, INCLUDING THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS,
ARE LIMITED TO THE DURATION OF THIS WRITTEN
WARRANTY. THIS WARRANTY SUPERCEDES ALL OTHER
ORAL OR WRITTEN WARRANTIES.
Some states do not allow the exclusion or limitations of
incidental and consequential damages or limitations on
how long an implied warranty lasts, so the above limitations may not apply to you. This warranty gives you
specific rights and you may have other rights, which vary
from state to state.
How to Obtain Service
If a defect is noted within the warranty period, the
customer should contact a Vermont Castings Authorized
Dealer or CFM Corporation if the purchase was direct
with the following information:
1. Name, address, and telephone number of the purchaser
2. Date of Purchase.
3. Serial number from the label on the back
4. Nature of the defect or damage.
5. Any relevant information or circumstances, e.g., installation, mode of operation when defect was noted.
A warranty claim will then start in process. CFM Corporation reserves the right to withhold final approval of a
warranty claim pending a visual inspection of the defect
by authorized representatives.
35
CFM Corporation
2695 Meadowvale Blvd. • Mississauga, Ontario, Canada L5N 8A3
800-668-5323 • www.cfmcorp.com