Installation Manual - Hearth & Home Technologies

Installation Manual
Installation and Appliance Setup
INSTALLER: Leave this manual with party responsible for use and operation.
CONSUMER: Retain this manual for future reference.
NOTICE: DO NOT discard this manual!
Models:
Twilight-II-C
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
• DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this
or any other appliance.
• What to do if you smell gas
- DO NOT try to light any appliance.
- DO NOT touch any electrical switch. DO
NOT use any phone in your building.
- Leave the building immediately.
- Immediately call your gas supplier from
a neighbor’s phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call
the fire department.
• Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.
DANGER
HOT GLASS WILL
CAUSE BURNS.
This appliance may be installed as an OEM
installation in manufactured home (USA
only) or mobile home and must be installed
in accordance with the manufacturer’s
instructions and the Manufactured Home
Construction and Safety Standard, Title 24
CFR, Part 3280 in the United States, or the
Standard for Installation in Mobile Homes,
CAN/CSA Z240 MH Series, in Canada.
This appliance is only for use with the type(s)
of gas indicated on the rating plate. This
appliance is not convertible for use with other
gases, unless a certified kit is used.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
A barrier designed to reduce the risk of
burns from the hot viewing glass is provided
with this appliance and shall be installed for
the protection of children and other at-risk
individuals.
In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fitter.
See Table of Contents for location of additional Commonwealth
of Massachusetts requirements.
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
1
Safety Alert Key:
•
•
•
•
DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE: Used to address practices not related to personal injury.
Table of Contents
Installation Standard Work Checklist. . . . . . . . . . . . . . . . . . . . . 3
1 Product Specific and Important Safety Information
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
Appliance Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Performance Data . . . . . . . . . . . . . . . . . . . . . . . . .
Air Infiltration, Water Resistance and Structural Tests . . . .
BTU Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Altitude Installations. . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-Combustible Materials Specification. . . . . . . . . . . . . .
Combustible Materials Specification . . . . . . . . . . . . . . . . . .
Electrical Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements for the Commonwealth of Massachusetts. . .
4
4
4
4
4
5
5
5
5
6
8 Finishing
A. Mantel and Wall Projections. . . . . . . . . . . . . . . . . . . . . . . . 22
B.
Decorative Front Selection. . . . . . . . . . . . . . . . . . . . . . . . . 23

C. Facing Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9 Appliance Setup
A. Fixed Glass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Remove the Shipping Materials. . . . . . . . . . . . . . . . . . . . .
C. Clean the Appliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. Lava Rock and Ember Placement. . . . . . . . . . . . . . . . . . .
E. Install the Log Assembly. . . . . . . . . . . . . . . . . . . . . . . . . .
F. Appliance Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G. Install Trim and/or Surround. . . . . . . . . . . . . . . . . . . . . . . .
10 Reference Materials
2 Getting Started
A. Design and Installation Considerations . . . . . . . . . . . . . . . . 7
B. Tools and Supplies Needed. . . . . . . . . . . . . . . . . . . . . . . . . 7
C. Inspect Appliance and Components. . . . . . . . . . . . . . . . . . . 7
A. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3 Framing and Clearances
A. Appliance Dimension Diagram. . . . . . . . . . . . . . . . . . . . . . . 8
B. Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Termination Location and Vent Information
A. Chimney Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Appliance Preparation
A. Removing Non-combustible Facing Material Assembly. . . 12
B. Securing and Leveling the Appliance. . . . . . . . . . . . . . . . . 12
C. Installing Non-combustible Facing Material (Outdoor Side).15
6 Electrical Information
A. General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Wiring Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Gas Information
A.
B.
C.
D.
E.
Fuel Conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Altitude Installations. . . . . . . . . . . . . . . . . . . . . . . . . .
Air Shutter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
20
20
20
21
 = Contains updated information.
2
29
30
30
30
31
33
33
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
Installation Standard Work Checklist
ATTENTION INSTALLEr:
Follow this Standard Work Checklist
This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this
installation manual.
Customer:
Lot/Address:
Model (circle one):
Twilight-II-C
Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone #
Serial #:
WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions can
lead to a fire or explosion.
Appliance Install
Required non-combustible board is installed. (Pg. 15)
Verified clearances to combustibles. (Pg. 9)
Fireplace is leveled and secured. (Pg. 13)
YES
IF NO, WHY?
___________________________
___________________________
___________________________
Electrical Section 6 (Pg 16-19)
Unswitched power (110-120 VAC) provided to the appliance.
Switch wires properly installed.
___________________________
___________________________
Gas Section 7 (Pg 20-21)
Proper appliance for fuel type.
Was a conversion performed?
Leak check performed and inlet pressure verified.
Verified proper air shutter setting for installation type.
___________________________
___________________________
___________________________
___________________________
Finishing Section 8 (Pg 22-23)
Combustible materials not installed in non-combustible areas.
Verified all clearances meet installation manual requirements.
Mantels and wall projections comply with installation manual requirements.
___________________________
___________________________
___________________________
Appliance Setup Section 9 (Pg 24-28)
All packaging and protective materials removed (inside & outside of appliance).
Refractories, logs, media and embers installed correctly.
Glass assembly installed and secured.
Accessories installed properly.
Mesh, doors, or decorative front properly installed.
Manual bag and all of its contents are removed from inside/under
the appliance and given to party responsible for use and operation.
Started appliance and verified no gas leaks exist.
___________________________
___________________________
___________________________
___________________________
___________________________
___________________________
___________________________
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your file.
• That this checklist remain visible at all times on the appliance until the installation is complete.
Comments: Further description of the issues, who is responsible (Installer/ Builder/ Other Trades, etc) and corrective
action needed _____________________________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
Comments Communicated to party responsible ____________________ by ______________________on ___________
(Builder / Gen. Contractor/) (Installer)
(Date)
 = Contains updated information.
2368-972 12/14
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
3
1
Product Specific and Important Safety Information
A. Appliance Certification
C. Thermal Performance Data
Model: Twilight-II-C
MODEL: Twilight-II-C
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance
STANDARD: ANSI Z21.50-2014 • CSA2.22-2014
This product is listed to ANSI standards for “Vented Gas
Appliances” and applicable sections of “Gas Burning
Heating Appliances for Manufactured Homes and Recreational Vehicles”, and “Gas Fired Appliances for Use at
High Altitudes”.
NOTICE: This installation must conform with local codes.
In the absence of local codes you must comply with the
National Fuel Gas Code, ANSI Z223.1-latest edition in
the U.S.A. and the CAN/CGA B149 Installation Codes in
Canada.
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemental room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
B. Glass Specifications
Sound Transmission Thermal Resistance
Class (STC)
(R Value)
27
0.8hr-sq ft-ºF/BTU
Thermal Conductivity
(K Value)
1.25 BTU-in/hr-sq ft-ºF
D. Air Infiltration, Water Resistance and
Structural Tests
The Hearth & Home Technologies Twilight-II-C Indoor/
Outdoor Appliance unit was tested to the following ASTM
standards at the Stork Twin City Testing laboratory.
Air infiltration test ASTM:E283-(04). The sample was tested at 1.57 psf (equivalent to a 25-mph windload). Water
resistance test ASTM:E331-00. The test specimen was
tested at the requested test pressures of 8.0 & 25.0 psf.
Structural test ASTM:E330-02. The unit was tested to a
design pressure of 50-psf, a test pressure of 75-psf.
Test Results
Model
Twilight-II-C
Indoor/Outdoor
Air Infiltration
(ASTM E283)
Water Resistance
(ASTM E331)
Structural Load
(ASTM E330)
0.07CFM/ft2
No leakage
@ 8psf & 25psf
No Blowout
@ 75psf
Tempered Glass (Interior Glass)
Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous locations such as bathtub enclosures as defined by the
Consumer Product Safety Commission (CPSC). The
tempered glass has been tested and certified to the requirements of ANSI Z97.1 and CPSC 16 CFR 1202
(Safety Glazing Certification Council SGCC# 1595 and
1597. Architectural Testing, Inc. Reports 02-31919.01
and 02-31917.01).
This statement is in compliance with CPSC 16 CFR Section 1201.5 “Certification and labeling requirements”
which refers to 15 U.S. Code (USC) 2063 stating “…Such
certificate shall accompany the product or shall otherwise
be furnished to any distributor or retailer to whom the
product is delivered.”
E. BTU Specifications
Model
Input
BTU/h
Orifice Size
(DMS)
US
38,000
32
CAN
34,200
33
US
36,000
50
CAN
33,300
51
U.S. (0-2000 FT) or
Canada (2000-4500 FT)
Twilight-II-C (NG)
Twilight-II-C (LP)
Some local building codes require the use of tempered
glass with permanent marking in such locations. Glass
meeting this requirement is available from the factory.
Please contact your dealer or distributor to order.
Ceramic Glass (Exterior Glass)
This appliance is equipped with 5 mm ceramic glass. Replace glass only with 5 mm ceramic glass. Please contact
your dealer for replacement glass.
4
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
F. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce input rate 4% for each 1000 feet
above 2000 feet.
• In CANADA: Reduce input rate 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.
Check with your local gas utility to determine proper
orifice size.
G. Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in
a Vertical Tube Furnace at 750 ºC shall be considered
non-combustible materials.
H. Combustible Materials Specification
Materials made of or surfaced with wood, compressed paper, plant fibers, plastics, or other material that can ignite
and burn, whether flame proofed or not, or plastered or
unplastered shall be considered combustible materials.
I. Electrical Codes
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• A 110/120 VAC circuit for this product must be protected with ground-fault circuit-interrupter protection,
in compliance with the applicable electrical codes,
when it is installed in locations such as in bathrooms
or near sinks.
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
5
Note: The following requirements reference various
Massachusetts and national codes not contained in this
document.
J. Requirements for the Commonwealth of
Massachusetts
For all side wall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those
owned or operated by the Commonwealth and where the
side wall exhaust vent termination is less than seven (7)
feet above finished grade in the area of the venting, including but not limited to decks and porches, the following
requirements shall be satisfied:
Installation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas fitter
shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the floor
level where the gas equipment is to be installed. In addition, the installing plumber or gas fitter shall observe that
a battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of
the dwelling, building or structure served by the side wall
horizontal vented gas fueled equipment. It shall be the
responsibility of the property owner to secure the services
of qualified licensed professionals for the installation of
hard wired carbon monoxide detectors.
In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic,
the hard wired carbon monoxide detector with alarm and
battery back-up may be installed on the next adjacent
floor level.
In the event that the requirements of this subdivision can
not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply
with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA
720 and be ANSI/UL 2034 listed and IAS certified.
Signage
A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with the
exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read,
in print size no less than one-half (1/2) in. in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
Inspection
The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the
installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a)1
through 4.
Exemptions
The following equipment is exempt from 248 CMR
5.08(2)(a)1 through 4:
• The equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented” in the most current edition
of NFPA 54 as adopted by the Board; and
• Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or
in part for residential purposes.
MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall
horizontally vented gas equipment provides a venting
system design or venting system components with the
equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system
shall include:
• Detailed instructions for the installation of the venting
system design or the venting system components; and
• A complete parts list for the venting system design or
venting system.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies
“special venting systems”, the following requirements
shall be satisfied by the manufacturer:
• The referenced “special venting system” instructions
shall be included with the appliance or equipment installation instructions; and
• The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall include a parts list and detailed installation
instructions.
A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for venting
instructions, and/or all venting design instructions shall
remain with the appliance or equipment at the completion
of the installation.
See Gas Connection section for additional Commonwealth of Massachusetts requirements.
6
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
2
Getting Started
A. Design and Installation Considerations
B. Tools and Supplies Needed
Hearth & Home Technologies direct vent gas appliances
are designed to operate with all combustion air siphoned
from outside of the building and all exhaust gases expelled
to the outside. No additional outside air source is required.
Before beginning the installation be sure that the following
tools and building supplies are available.
Tape measure
Framing material
Pliers
High temperature caulking material
Hammer
Phillips screwdriver
Gloves
Framing square
Voltmeter
Electric drill and bits (1/4 in.)
Plumb line
Safety glasses
Level
Reciprocating saw
Manometer
Flat blade screwdriver
Non-corrosive leak check solution
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
One 1/4 in. female connection (for optional fan).
The Twilight-II-C has been carefully engineered to provide a unique fireplace experience. Since it is different
than any other product on the market, care must be taken
when installing this appliance so that our customer does
not experience undesirable performance or conditions.
1. Install the appliance according to this Installation manual paying particular attention to flashing and sealing
instructions.
2. In the cold northern climates pay attention to exposures and prevailing wind conditions when locating the
appliance, the same as you would for locating exterior
windows and doors.
The Twilight-II-C has the thermal characteristics of a high
quality window system. Temperatures near the appliance
will be cooler than what is realized with a fully insulated wall.
Operation of the appliance will eliminate any cool drafts
and will provide the room with a comfortable ambiance.
Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector, fire officials or authorities having
jurisdiction over restrictions, installation inspection and
permits.
Before installing, determine the following:
• Where the appliance is to be installed.
• Gas supply piping requirements.
• Electrical wiring requirements.
C. Inspect Appliance and Components
• Carefully remove the appliance and components from
the packaging.
• The vent system components and decorative doors and
fronts may be shipped in separate packages.
• If packaged separately, the log set and appliance grate
must be installed.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
• Read all of the instructions before starting the installation. Follow these instructions carefully during the
installation to ensure maximum safety and benefit.
WARNING! Risk of Fire or Explosion! Damaged parts
could impair safe operation. DO NOT install damaged, incomplete or substitute components. Keep appliance dry.
• Framing and finishing details.
• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.
Hearth & Home Technologies disclaims any responsibility
for, and the warranty will be voided by, the following actions:
• Installation and use of any damaged appliance or vent
system component.
• Modification of the appliance or vent system.
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
Technologies suggests NFI certified or factory
trained professionals, or technicians supervised by
an NFI certified professional (www.nficertified.org).
• Installation other than as instructed by Hearth & Home
Technologies.
• Improper positioning of the gas logs or the glass door.
• Installation and/or use of any component part not approved
by Hearth & Home Technologies.
Any such action may cause a fire hazard.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualified
service technician, service agency or your dealer.
WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT use this appliance if any part has been under
water. Call a qualified service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
7
3
Framing and Clearances
A. Appliance Dimension Diagram
Dimensions are actual appliance dimensions. Use for reference only.
OUTDOOR
H
F
G
OUTDOOR
A
C
C
D
GAS LINE
ACCESS
ELECTRICAL
ACCESS
I
U
J
B
Q
T* = MEASURE TO
BOTTOM OF LIP
AS SHOWN IN U
K
P
N
R T*
O
L
M
S
INDOOR VIEW
OUTDOOR VIEW
Location
Figure 3.1 Appliance Dimensions 8
Inches
Millimeter
Location
Inches
Millimeter
A
2-1/4
57
K
32-5/8
829
B
4-3/4
121
L
36-1/4
921
C
1/2
13
M
41-7/8
1064
D
43
1092
N
21-1/2
547
E
24
610
O
6-1/8
155
F
46-7/8
1191
P
38-5/8
981
G
46-7/8
1191
Q
42-1/8
1070
H
9-1/2
241
R
21-1/2
546
I
2-1/2
64
S
35-5/8
905
j
4-1/2
114
T
8
203
U
1-1/4
32
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
B. Clearances to Combustibles
When selecting a location for the appliance it is important
to consider the required clearances to walls (see Figure
3.2).
WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.
Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.
NOTICE: Illustrations reflect typical installations and are
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams
are not drawn to scale. Actual installation may vary due to
individual design preference.
WARNING! Risk of Fire! The exterior side of the TWILIGHT-II-C CANnot be recessed into the framing.
EXTERIOR INSULATED ENVELOPE
GLASS
B
GLASS
B
A
C*
NOTE: Appliance may be installed flush on exterior, interior or
anywhere in between. Any projection of the appliance interior
or exterior must have a properly constructed chase surrounding the appliance. The exterior must have proper insulating,
flashing and finishing to ensure an insulated envelope.
C* = 0 INCH (MIN.)
WARNING! Risk of Fire! The exterior side of the TWILIGHT-II-C
CANNOT be recessed into the framing.
Refer to Section 8.A for mantel and wall projection information.
Consider the mantel or cabinet system to be installed and
comply with the necessary requirements for elevated hearth.
Refer to instructions included with cabinet system.
FLUSH
TO INTERIOR
PROJECTION
D
E
GLASS
B
C* = 24 INCH (MAX.)
GLASS
Inches
Millimeters
FLUSH TO EXTERIOR INSULATED ENVELOPE
A
B
C*
D
Minimum Minimum Minimum
Maximum
Minimum
43
1/2
0
24
36
1092
13
0
610
914
* = C dimension may be any length from 0 to 24 inches.
E
43
1092
Figure 3.2 Appliance Locations
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
9
NOTICE: Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly
on carpeting, vinyl, tile or any combustible material other
than wood.
Finishing Material Clearances
OVERHANG
FINISHING MATERIALS
WARNING! Risk of Fire! Do not install appliance against
vapor barriers or exposed insulation. Prevent contact with
sagging or loose insulation.
A
A
SIDING
• Locate and install appliance to all clearance specifications
in manual.
B
A
• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
making contact with fireplace.
SIDING
SIDING
• Failure to maintain airspace may cause overheating and
a fire.
• Reference Figure 3.2, Figure 3.3, and Figure 3.4 for
clearance specifications.
Note: Verify that tabs on insulation bracket are in an upright
position.
MINIMUM CLEARANCES
Vinyl
Non-vinyl
A
36 in.
12 in.
B
64-5/16 in.
35-5/16 in.
Figure 3.4 Exterior View - Finishing Material Clearances
Note: Framing dimensions assume use of
1/2 inch thick wall covering materials on
exterior of framing only, and NO sheetrock
on interior of framing.
From top of hood to
ceiling (interior) or
overhang (exterior).
INTERIOR
FRAMING
C
J
G
A
EXTERIOR
FRAMING
F
I
B
D
H
E
K
Clearances to combustibles:
A
B
C
D
E
Exterior
Rough
Opening
(Height)
Interior
Rough
Opening
(Height)
F
G
H
I
J
Inches
47-5/8
47-5/8
23
44
46-1/8
35-3/4
35-5/16
64-5/16
0
0
9-1/2
9-1/2
1/2
mm
1210
1210
584
1118
1172
908
897
1634
0
0
241
241
13
Figure 3.3 Clearances to Combustibles
10
K
Framing
Rough
Rough
Clearance Clearance to Overhang
Standoff Standoff
for nonCombustible Combustible
Sides of
(EXTERIOR)
Opening Opening
to Ceiling
Height
Height
combustible
Floor
Flooring
Appliance
(Depth) (Width)
(INTERIOR)
Interior Exterior
Non-Vinyl
Vinyl
material
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
4
Termination Location and Vent Information
A. Chimney Diagram
O
F
C
N
FP
P
R
FP
Q
B
J
B
FP
D
FP
H or i
B
FP
G
FP
X
M
A
FP
E
FP
FP
FP
FP
H
X
= AIR SUPPLY INLET
FP
V
= APPLIANCE OPENING
= 9 inches������������������clearance to outside corner
E
= 12 inches����������������clearance to inside corner
= 3 ft. (Canada)����������not to be installed above a gas meter/regulator assembly within 3 feet
horizontally from the center-line of
the regulator
G = 3 ft���������������������������clearance to gas service regulator
vent outlet
H
= 9 inches (U.S.A)
12 inches (Canada)�clearance to non-mechanical (unpowered) air supply inlet, combustion air inlet or direct-vent termination
i
= 3 ft. (U.S.A.)
6 ft. (Canada)�����������clearance to a mechanical (powered) air supply inlet
All mechanical air intakes within 10 feet of a termination cap
must be a minimum of 3 feet below termination.
J
= 54 in.���������������������� On public property: clearance
above paved sidewalk or a paved
driveway.
A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
= 6 inches����������������clearance from sides of electrical
service
L
= 12 inches���������������clearance above electrical service
Location of the vent termination must not interfere with access to the
electrical service.
M
= 35-5/16 inches������������clearance under veranda, porch, deck,
balcony or overhang
64-5/16 inches �������vinyl or composite overhang
Permitted when veranda, porch, deck or balcony is fully open
on a minimum of 2 sides beneath the floor.
Figure 4.3 Minimum Clearances for Termination
Electrical
Service
K
V
V
Covered Alcove Applications
(Spaces open only on one side and with an overhang)
N
= 6 inches ���������� non-vinyl sidewalls
O
P
12 inches �������� vinyl sidewalls
= 18 inches �������� non-vinyl soffit and overhang
42 inches �������� vinyl soffit and overhang
= 8 ft.
TWILIGHT-II-C
1 additional terminations
2 additional terminations
3 additional terminations
F
K
K
C
= 0 inches������������������clearances above grade, veranda,
porch, deck or balcony
B
= 12 inches.���������������clearance to window or door that
may be opened, or to permanently
closed window
C
= 35-5/16 inches��������clearance below unventilated soffit
35-5/16 inches��������clearance below ventilated soffit
64-5/16 inches��������clearance below vinyl soffits and
electrical service
D
L
A
= AREA WHERE APPLIANCE IS NOT PERMITTED
A
V
H
QMIN
10 feet
Q + 3 feet
Q + 6 feet
Q + 9 feet
RMAX
2 x Q ACTUAL
1 x Q ACTUAL
2/3 x Q ACTUAL
1/2 x Q ACTUAL
RMAX = (2 / # caps plus appliance) x QACTUAL
This appliance is approved for installation onto screened porches
with the following guidelines:
Minimum porch area: 96 square feet
Minimum ceiling height: 92 inches
Minimum two walls must be screened
Minimum top of screen height, side walls: 6 ft. 8 in.
Minimum screen area: 64 square feet
NOTE: There may be some odor and small amounts of soot
associated with venting the TWILIGHT-II-C onto a screened porch.
Ensuring good cross draft ventilation and routine maintenance of
the appliance will maximize comfort and cleanliness.
CAUTION! Risk of Burns! Terminations are HOT, consider
proximity to doors, traffic areas or where people may pass or
gather (sidewalk, deck, patio, etc.).
•
Local codes or regulations may require different clearances.
•
Vent system termination is permitted in porch areas with
two or more sides open.
•
Hearth & Home Technologies assumes no responsibility
for the improper performance of the appliance when the
venting system does not meet these requirements.
Vinyl protection kits are suggested for use with vinyl siding.
•
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
11
5
Appliance Preparation
A. Removing Non-combustible Facing Material Assembly
The non-combustible assembly is located on right-hand
side of appliance (when looking from outdoor side of
appliance).
NOTICE: Handle non-combustible pieces with care.
• Non-combustible pieces may chip or crack if dropped
or impacted.
• Avoid damaging protruding edges on outdoor side of
appliance.
1. Hold non-combustible pieces in place.
2. Remove and save two screws from upper bracket.
3. Remove non-combustible pieces.
4. Remove and save three screws from lower bracket.
B. Securing and Leveling the Appliance
WARNING
Fire Risk.
• Prevent contact with sagging, loose
insulation.
• Do NOT install against vapor barriers or
exposed insulation.
Placing Metal Hearth Strip
The metal hearth strip (approximately 46 inches x 4 inches)
is used to provide added protection where appliance and
outer structure meet.
• Place a generous bead of silicone caulk into the corner
of the protective hearth strip.
• Place the metal strip onto the structure where the outer
edge of the appliance will sit. See Figure 5.1. It should
overlap building paper to prevent water infiltration.
5. Discard brackets.
6. Replace screws in holes where brackets were attached
to appliance.
APPLIANCE
EXTERIOR
METAL HEARTH STRIP
UNDER EDGE OF
APPLIANCE
APPLY HIGH TEMPERATURE SEALANT
(300 °F/149 °C min.)
BOTH SIDES
Figure 5.1 Positioning the Metal Hearth Strip
Placing Insulation in Framing
Insulation material is shipped with this appliance. It is
packaged and placed on top of the appliance.
• Split the insulation material into four pieces.
• Place the insulation material on the top (two pieces) and
sides (one piece per side) of the appliance, between the
appliance and the framing studs. See Figure 5.2.
12
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
Placing and Securing Appliance
Place the appliance into position. Make sure flashing edges
on the outdoor surround fit up tight to the framing.
The diagram shows how to properly position, level, and
secure the appliance. See Figure 5.2. Nailing tabs are
provided to secure the appliance to the framing members.
• Caulk behind flanges before securing to framing.
• Place the appliance into position.
• Level the appliance from side to side and front to back.
• Shim the appliance as necessary. It is acceptable to
use wood shims.
APPLY HIGH
TEMPERATURE
SILICONE SEALANT
TO CORNER EDGES
FIREPLACE
FLANGE
BEND IN
FLANGE
• Keep nailing tabs flush with the framing.
• Secure the appliance to the framing by using nails or
screws through the nailing tabs.
Figure 5.3
Install outdoor flashing header (sheet metal piece removed
from shipping pallet). Place over upper portion of shroud
flange. Line up holes on shroud sides. See Figure 5.4.
INSULATION
(TOP AND SIDES)
SLIDE OUTDOOR FLASHING
DOWNWARD INTO POSITION
HEADER
FLASHING
(INSTALLED
CORRECTLY)
SCREW
LOCATIONS
SECURE TO
FRAMING IN A MINIMUM
3 PLACES PER SIDE
APPLIANCE
EXTERIOR
SECURE TO
FRAMING
Note: The exterior side of the appliance can protrude
outward. It MUST NOT be recessed into the framing. Caulk
behind all flanges before securing to the exterior.
Figure 5.2 Proper Positioning, Leveling and Securing of
an Appliance
CAUTION
Figure 5.4
Seal flashing to exterior of building using high temperature caulk. Attach to building using holes provided on the
top of the left and right sides of outdoor flashing. See
Figure 5.4.
Do NOT notch into the framing around the appliance spacers.
Placing Flashing and Sheathing
Apply high temperature silicone sealant to corner edges
of fireplace flange. See Figure 5.3).
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
13
Apply housewrap or building paper
For placement of combustible housewrap or building paper and non-combustible sheathing for the exterior wall
see Figures 5.5 and 5.6.
Special care should be taken when choosing building
materials for weather proofing (i.e. building wraps, sealant tapes, liquid sealants, rubberized flashings, etc.).
All sealant materials or building wraps installed within 6
inches of the top and 1 inch on the sides of the fireplace
surround must be approved to a minimum temperature
of 225 ºF continuous exposure. Consult the material’s
manufacturer to ensure product compliance.
TOP OF SURROUND
METAL FLASHING
6 IN.
* Note: All finishing materials on top of exterior sheathing
must be non-combustible for a minimum of 10-7/8 inches
above and 2-3/4 inches on both sides of the exterior face of
the appliance. This non-combustible finishing material can
be up to a maximum of 6 inches thick (6 inches maximum
horizontal overhang) to allow for brick and stone alcoves
(see Figure 5.5).
** Note: Combustible house wrap or building paper must
not extend over the outside of non-combustible sheathing, and may extend over the flashing behind non-combustible sheathing a maximum of 1 inch. Use high temp
silicone or sealant recommended by the manufacturer of
the housewrap to seal between combustible sheathing
house wrap and non-combustible sheathing. The sealant
material used within 6 inches of the top and 1 inch on the
sides of the fireplace surround must be approved to a
minimum temperature of 225 ºF continuous exposure.
Once the appliance is in place use enough high temperature silicone sealant or manufacturer specified sealant
(approved to a minimum of 225 ºF) to make a water tight
seal between outdoor surround and exterior sheathing.
Face the perimeter of the appliance with non-combustible
sheathing over shroud flanges and flashing. See Figure
5.7 for non-combustible zone.
= 1 INCH HOUSEWRAP OVERLAP
= SHEATHING
= NON-COMBUSTIBLE ZONE
SHEATHING
1 IN.
NON-COMBUSTIBLE ZONE
10-7/8 in.
FLASHING
SIDE OF SURROUND
Figure 5.5. Exterior View without Non-combustible Sheathing Shown
2-3/4 in.
2-3/4 in.
SHEATHING,
COMBUSTIBLE
WALL STUD
HOUSEWRAP **
(BUILDING
PAPER) OVERLAP
FLASHING 1 in.
FIREPLACE
HEADER
HOUSEWRAP
INSULATION
TOP OF
FIREPLACE
FLASHING
HEADER
INSULATED
FRAMING
STANDOFF
Figure 5.7 Exterior Installation Prior to Finishing
NON-COMBUSTIBLE *
SHEATHING
10-7/8 in.
16-5/16 in.
TL-TRIM KIT
TOP HOOD
Figure 5.6
14
APPLIANCE
HOOD
WARNING
Risk of Fire
• Non-combustible clearances must be maintained.
• Sheetrock, wood or other combustibles must
NOT be used as sheathing or facing in the noncombustible zone.
• See Sections 3 and 8 for proper clearances.
• See Section 1 for combustible /non-combustible definitions.
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
C. Installing Non-combustible Facing Material (Outdoor Side)
• Attach the left and right side pieces to the framing members. (See Figure 5.9).
NON-COMBUSTIBLE
FACING MATERIAL
WARNING
Fire Risk.
• Follow these instructions exactly.
• Facing materials must be installed properly to
prevent fire.
• No materials may be substituted
without authorization by Hearth & Home
Technologies.
• Center and attach two top boards (the two shorter pieces)
to the framing members. See Figure 5.8.
48-5/8 in.
• Use fasteners from fastener packet (in manual bag) in
shaded areas (see Figure 5.8).
• Use regular sheetrock screws in non-shaded areas.
47-5/8 in.
Figure 5.9 Complete Installation of Non-combustible
Facing Material (Outdoor Side)
• Use a wet or dry towel or soft brush to remove dust or
dirt from facing material.
• Apply a non-combustible adhesive to attach tile, stone
or other non-combustible finishing materials per manufacturer’s instructions.
Apply fasteners from
fastener packet
in these areas.
Figure 5.8 Attaching Non-combustible Facing Material
(Outdoor Side Only)
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
15
6
Electrical Information
A. General Information
Junction Box Installation
WARNING! Risk of Shock or Explosion! DO NOT wire
110V to the valve or to the appliance wall switch. Incorrect
wiring will damage controls.
If the box is being wired from the OUTSIDE of the appliance:
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• Wire the appliance junction box to unswitched 110/120
VAC. This is required for proper operation of the
appliance (Intellifire ignition).
• A 110/120 VAC circuit for this product must be protected
with ground-fault circuit-interrupter protection, in
compliance with the applicable electrical codes, when
it is installed in locations such as in bathrooms or near
sinks.
• Install the Romex™ connector (not included with
appliance) in the side wrap.
• Loosen two screws on the Romex connector, feed the
necessary length of wire through the connector and
tighten the screws.
• Make all necessary wire connections.
If the box is being wired from the INSIDE of the appliance:
• Remove the screw attaching the junction box to the
outer shell, rotate the junction box inward to disengage
it from the outer shell (see Figure 6.1).
• Pull the electrical wires from outside the appliance
through this opening into the valve compartment.
• Low voltage and 110/120 VAC voltage cannot be shared
within the same wall box.
HEAT SHIELD
14/2WG
WHT
WHT
BLK
BLK
COPPER GROUND
ATTACHED TO GRN SCREW
WITH GRN WIRE
GREEN WIRE
INSIDE BOX
NOTICE: DO NOT wire
110/120 VAC to wall
switch.
Figure 6.1 Junction Box Detail
• Loosen the two screws on the Romex connector, feed
the necessary length of wire through the connector and
tighten the screws.
• Make all necessary wire connections to the receptacle
and assemble the receptacle and cover to the junction
box.
16
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
Optional Accessories
Optional fan and remote control kits require that 110/120
VAC be wired to the factory installed junction box before
the appliance is permanently installed (see Figure 6.2).
Appliance
Interior
Side
Fan Installation
To provide best airflow, we recommend positioning fan
on the left side (as viewed from appliance interior side
(see Figure 6.3). NOTE: It is recommended fan be installed prior to gas line installation for ease of installation.
Wall Switch
Position the wall switch in the desired position on a wall.
Run a maximum of 25 feet (7.8 m) or less length of 18
A.W.G. minimum wire and connect it to the appliance ON/
OFF switch pigtails.
FAN
DRIP
TRAY
Figure 6.3 Fan location
FAN SPEED
CONTROL
(RHEOSTAT)
6 FT.
APPROX.
DETAIL A
WIRE LEAD
1 MALE END
1 FEMALE END
TEMPERATURE
SENSOR SWITCH
WIRE LEAD
2 FEMALE ENDS
6 FT.
APPROX.
FAN KIT
#GFK-160T
JUNCTION BOX
SEE DETAIL A
PLUG AND WIRE
ASSEMBLY
NOTE: If any of the original wire as supplied
with the appliance must be replaced, it must be
replaced with the type 105oC rated wire.
Figure 6.2 Fan Wiring Diagram
Electrical Service and Repair
WARNING! Risk of Shock! Label all wires prior to disconnection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper
operation after servicing.
WARNING! Risk of Shock! Replace damaged wire with
type 105 ºC rated wire. Wire must have high temperature
insulation.
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
17
B. Wiring Requirements
Intellifire Ignition System Wiring
• Wire the appliance junction box to 110/120 VAC for
proper operation of the appliance.
WARNING! Risk of Shock or Explosion! DO NOT wire
IPI controlled appliance junction box to a switched circuit.
Incorrect wiring will override IPI safety lockout.
• Refer to Figure 6.4, Intellifire Pilot Ignition (IPI) Wiring
Diagram.
• This appliance is equipped with an Intellifire control valve
which operates on a 3 volt system.
• Plug the 3-volt AC transformer into the appliance junction
box to supply power to the unit OR install two D cell
batteries (not included) into the battery pack before use.
NOTICE: Batteries should not be placed in the battery
pack while using the transformer. Remove batteries before
using the transformer, and unplug the transformer before
installing the batteries. Battery polarity must be correct or
module damage will occur.
INTERMITTENT
PILOT
IGNITOR
I
IGNITION MODULE
3 VAC
PLUG-IN
3V TRANSFORMER
S
ON/OFF
WALL
SWITCH
FLAME SPARKER/
SENSOR
IGNITION
MODULE
(3V)
WHT
ORG
LOW VOLTAGE
SEE NOTE 1
GROUND
NEUTRAL
REMOTE
CONTROL
GROUND TO
FIREPLACE
CHASSIS
HOT
BLACK WIRE CAN BE
PLUGGED INTO ANY OF
#1 - #5 LOCATIONS
ON THE HOT SIDE
BRN
ORG
BRN
WHITE WIRE
CAN BE
PLUGGED
INTO ANY
OF #1-#5
LOCATIONS
ON THE
NEUTRAL SIDE
TRANSFORMER
3 VAC
PLUG IN
VALVE
BRN
PIGGYBACK
ON/OFF SWITCH
JUMPER WIRE
BRN
Note: To operate the appliance without a wall control
or remote control, connect the ON/OFF switch located
inside the control cavity of the appliance.
WIRE
ASSEMBLY
NOTE: 1. Ignition module, valve, pilot, and wall switch operate on 3 volts.
Uninterrupted 120 VAC is required at junction box unless equipped with battery back-up.
Figure 6.4 Intellifire Pilot Ignition (IPI) Wiring Diagram
18
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
GRN
VALVE
Connecting to the Appliance
WARNING
Wire 110V to electrical junction box.
Do NOT wire 110/120 VAC to valve.
Do NOT wire 110/120 VAC to wall switch.
• Incorrect wiring will damage millivolt valves.
• Incorrect wiring will override IPI safety lockout
and may cause explosion.
• This appliance may be used with a wall switch or a remote
control.
Note: To operate the appliance without a wall control
or remote control, connect the ON/OFF switch located
inside the control cavity of the appliance. See Figure 6.4.
• Keep wire lengths short as possible by removing any
excess wire length.
• Low voltage and 110/120 VAC voltage cannot be shared
within the same wall box.
Wall Switch Installation for Fan (Optional)
If the box is being wired to a wall mounted switch for use
with a fan (See Figure 6.5):
• The power supply for the appliance must be brought into
a switch box.
• The power can then be supplied from the switch box to
the appliance using a minimum of 14-3 with ground wire.
• At the switch box connect the black (hot) wire and red
(switch leg) wire to the wall switch as shown.
• At the appliance connect the black (hot), white (neutral)
and green (ground) wires to the junction box as shown.
• Add a 1/4 in. insulated female connector to the red
(switch leg) wire, route it through the knockout in the face
of the junction box, and connect to the top fan switch
connector (1/4 in. male) as shown.
Minimum 14-3 AWG
with Ground
Red
Black
White
Green
Black
White
Green
Red
Black
White
Green
Junction Box
Switch
Switch Box
Power
Supply
Wires
Knockout
Red
Figure 6.5 Junction Box Wired to Wall Switch or BC10
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
19
7
Gas Information
A. Fuel Conversion
C. Gas Connection
• Make sure the appliance is compatible with available gas
types.
• Refer to Figure 3.1 for location of gas line access in
appliance.
• Conversions must be made by a qualified service
technician using Hearth & Home Technologies specified
and approved parts.
• Gas line may be run through knockout(s) provided.
B. Gas Pressure
• Optimum appliance performance requires proper input
pressures.
• Gas line sizing requirements will be determined in ANSI
Z223.1 National Fuel Gas Code in the USA and CAN/
CGA B149 in Canada.
• Pressure requirements are:
Natural Gas
Propane
Minimum inlet pressure
Gas Pressure
5.0 in. w.c.
11.0 in. w.c.
Maximum inlet pressure
10.0 in. w.c.
13.0 in. w.c.
Manifold pressure
3.5 in. w.c.
10.0 in. w.c.
WARNING! Risk of Fire or Explosion! High pressure
will damage valve. Low pressure may cause explosion.
• The gap between supply piping and gas access hole
may be caulked with caulk with a minimum of 300
ºF continuous exposure rating or stuffed with noncombustible, unfaced insulation to prevent cold air
infiltration.
• Ensure that gas line does not come in contact with outer
wrap of the appliance. Follow local codes.
• Pipe incoming gas line into valve compartment.
Note: If installing optional fan, use factory-supplied flex
ball valve assembly to connect gas line to valve. Hardpipe connected directly to valve will not leave the amount
of space required for proper fan installation.
• Connect incoming gas line to the 1/2 in. (13 mm)
connection on manual shutoff valve.
WARNING! Risk of Fire or Explosion! Support control
when attaching pipe to prevent bending gas line.
• A small amount of air will be in the gas supply lines.
• Verify inlet pressures. Verify minimum pressures when
other household gas appliances are operating.
WARNING! Risk of Fire or Explosion! Gas build-up during line purge could ignite.
• Install regulator upstream of valve if line pressure is
greater than 1/2 psig.
• Purge should be performed by qualified service
technician.
• Ensure adequate ventilation.
• Ensure there are no ignition sources such as sparks
or open flames.
WARNING
Fire Risk.
Explosion Hazard.
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures
above 1/2 psig.
• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures
equal to or less than 1/2 psig.
Note: Have the gas supply line installed in accordance with
local codes, if any. If not, follow ANSI 223.1. Installation
should be done by a qualified installer approved and/or
licensed as required by the locality. (In the Commonwealth
of Massachusetts installation must be performed by a
licensed plumber or gas fitter).
Note: A listed (and Commonwealth of Massachusetts approved) 1/2 in. (13 mm) T-handle manual shut-off valve
and flexible gas connector are connected to the 1/2 in. (13
mm) control valve inlet.
• If substituting for these components, please consult
local codes for compliance.
20
Light the appliance. It will take a short time for air to purge
from lines. When purging is complete the appliance will
light and operate normally.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Check all fittings and connections with a non-corrosive
commercially available leak-check solution. DO NOT use
open flame. Fittings and connections could have loosened during shipping and handling.
WARNING! Risk of Fire! DO NOT change valve settings.
This valve has been preset at the factory.
D. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce burner orifice 4% for each 1000 feet
above 2000 feet.
• In CANADA: Reduce burner orifice 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
E. Air Shutter Setting
Air shutter settings should be adjusted by a qualified service technician at the time of installation. The air shutter
is set at the factory.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
Air Shutter Settings
Twilight-II-C (NG)
3/8 in.
Twilight-II-C (LP)
Full Open
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
21
8
Finishing
A. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clearances as specified. Framing closer than the minimums listed must be constructed entirely of noncombustible materials (i.e., steel studs, concrete board, etc.) Failure to comply
could cause fire.
CEILING
NON-COMBUSTIBLE BOARD
(SUPPLIED ON APPLIANCE)
The TWI-MOD decorative front will overlap the appliance. 
See Figure 8.3.
3/4 IN.
3/4 IN.
INDOOR SIDE ONLY
12
10
11
35-3/4
9
7
8
13-5/8
12-5/8
6
11-5/8
10-5/8
9-5/8
8-5/8
HOOD
7-5/8
5/8 IN.
MEASUREMENTS FROM
TOP EDGE OF THE OPENING
Figure 8.3 Decorative Front Overlaps Surround
Note: Measurements are in inches.
Figure 8.1 Clearances to a Combustible and/or Non-combustible
Indoor Mantel
TOP VIEW
MEASURED
FROM CORNER
FIREPLACE
HOOD
1/2 IN.
Figure 8.2 Clearances to a Combustible and/or Non-combustible
Indoor Mantel or Mantel Leg
22
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15

B. Decorative Front Selection
Only decorative fronts certified for use with this appliance model may be used. Contact your dealer for a list of decorative
fronts that may be used. The TWI-MOD decorative front can not be used if the appliance is installed directly on the floor.
See Figure 8.4 and 8.5.
FS-TWI Decorative Front Application
If the appliance is installed on the floor or level with an elevated hearth, the FS-TWI decorative front MUST be used. The
TWI-MOD decorative front is not compatible with this type of installation as a minimum elevation of 3/4 inch is required on
the bottom of the appliance.
WALL
WALL
FS-TWI DECORATIVE FRONT
FLOOR
/ ELEV
ATED H
E
ARTH
FLOOR
/ ELEV
ATED H
E
ARTH
Figure 8.4 Appliance Installed on Floor or Elevated Hearth
TWI-MOD Decorative Front Application
If the appliance is installed at a minimum of 3/4 inch above the floor, the TWI-MOD decorative front can be used. The TWIMOD decorative front OVERLAPS the sides, top and bottom of the appliance surround. See Figure 8.5 for dimensions.
WALL
TWI-MOD DECORATIVE FRONT
WALL
FLOOR/E
LEVATE
D HEAR
TH
FLOOR/E
LEVATE
D HEAR
TH
NOTE: THE APPLIANCE MUST BE ELEVATED A MINIMUM
OF 3/4 INCH IN ORDER TO USE THE TWI-MOD DOOR.
Figure 8.5 Appliance Installed Off the Floor
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
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DECORATIVE FRONT DIMENSION DIAGRAM - TWI-MOD
C
D
E
F
BOTTOM OF
APPLIANCE
G
H
I
A
B
TWI-MOD
A
B
C
D
E
F
G
H
I
in.
37
43-3/8
30-3/4
20-3/8
33
38-3/4
6-3/8
2-3/8
1/2
mm
940
1102
781
518
838
984
162
6
13
Figure 8.6 Decorative Front Dimensions - TWI-MOD Decorative Front
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Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
DECORATIVE FRONT DIMENSION DIAGRAM - FS-TWI
C
B
D
E
A
FS-TWI
A
B
C
D
E
in.
36-1/16
31-1/8
31-3/4
25-7/8
1-3/4
mm
916
790
806
657
32
Figure 8.7 Decorative Front Dimensions - FS-TWI Decorative Front
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
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C. Facing Material
WARNING
Inside Facing Material
• May install combustible materials up to specified
clearances on top, front and sides of appliance.
• Seal joints between finished wall and appliance top and
sides with 300 ºF (140 ºC) minimum sealant.
• Leave space so bottom grille can be lowered for trim
door removal.
WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specified in
this manual. Overlapping materials could ignite and will
interfere with proper operation of doors and louvers.
Risk of Fire
• Non-combustible clearances must be
maintained.
• Sheetrock, wood or other combustibles must NOT
be used as sheathing or facing in the noncombustible zone.
• See Sections 3 & 8 for proper clearances.
• See Section 1 for combustible/noncombustible definitions.
May install non-combustible materials to cover gap between facing material and appliance (see Figure 8.10).
WARNING
NON-COMBUSTIBLE ZONE
Fire Risk.
Water Intrusion Risk.
41-7/8 in.
8-5/16 in.
Hood is required.
• Flashing and non-combustible sheathing must be
installed before facing materials.
• Facing must be non-combustible and seal tight to
fireplace front.
WARNING
Fire Risk.
Figure 8.8 Non-combustible Zone (Interior)
Finish all edges and fronts to clearances
and specifications listed in manual.
Finishing Material Clearances
• Black metal columns may be covered with
non-combustible material only.
• Do NOT overlap combustible materials onto appliance
front.
OVERHANG
FINISHING MATERIALS
A
SIDING
B
A
• Install combustible materials only up to specified
clearances on top, front and side edges.
• Seal joints between the finished wall and appliance top
and sides using only a 300 ºF minimum sealant.
A
SIDING
SIDING
A
B
NOTICE: If using an acid-based wash to clean finishing
material, cover the face of the fireplace with plastic sheet
to protect the paint. Remove plastic before operation of
fireplace.
MINIMUM CLEARANCES
Vinyl
Non-vinyl
36 in.
12 in.
64-5/16 in.
35-5/16 in.
Figure 8.9 Exterior View - Finishing Material Clearances
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Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
HOUSEWRAP
COMBUSTIBLE
SHEATHING
NON-COMBUSTIBLE
SHEATHING (SUPPLIED)
BRICK LEDGE
10-7/8 in.
NON-COMBUSTIBLE
FACING
REQUIRED
FLASHING
(SUPPLIED)
6 in.
MAX.
EXHAUST
THERE MUST BE NO GAP
BETWEEN BRICK LEDGE,
FACING MATERIAL AND
APPLIANCE FRONT
6 in. MAXMUM PROJECTION
FROM FACE OF FIREPLACE
HOOD
HOUSE
WRAP
Figure 8.10 Exterior View
NON-COMBUSTIBLE
SHEATHING
2-3/4 IN.
Note: All finishing materials on top of exterior
sheathing must be non-combustible for a minimum of
10-7/8 inches above and on both sides of the exterior
face of the appliance. This non-combustible finishing
material can be up to a maximum of 6 inches thick (6
inches maximum horizontal overhang) to allow for brick
and stone alcoves. See Figure 8.10.
CEILING OR OVERHANG
SOFFIT
SHEATHING,
COMBUSTIBLE
STUD WALL
Note: Combustible housewrap or building paper
must not extend over the outside of non-combustible
sheathing, and may extend over the flashing
header behind non-combustible sheathing. Use high
temp caulk to seal between combustible sheathing
housewrap and non-combustible sheathing.
HOUSEWRAP
(BUILDING
PAPER) OVERLAP
FLASHING 1 in.
NON-COMBUSTIBLE
SHEATHING
FIREPLACE
HEADER
HOUSEWRAP
35-5/16 in.
MINIMUM CLEARANCE TO
NON-VINYL SOFFIT, MANTEL,
CEILING OR OVERHANG.
64-5/16 in.
MINIMUM CLEARANCE
TO VINYL SOFFIT,
CEILING OR OVERHANG.
10-7/8 in.
INSULATION
TOP OF
FIREPLACE
FLASHING
HEADER
INSULATED
FRAMING
STANDOFF
APPLIANCE
HOOD
TOP HOOD
Figure 8.11 Exterior View
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
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SOFFIT
SIDING
HOUSEWRAP (BUILDING
PAPER) AND SHEATHING
DRAIN PLANE
DETERMINED BY
LOCAL CODE
Detail SEE FIGURE 10.5
35-5/16 in.
MINIMUM CLEARANCE
TO NON-VINYL
64-5/16 in.
CLEARANCE TO VINYL
SOFFIT, OVERHANG, MANTEL,
OR CEILING
12 in.
MINIMUM CLEARANCE
TO NON-VINYL SIDING
36 in. MINIMUM
CLEARANCE TO VINYL SIDING
INSULATION
TOP OF
APPLIANCE
TOP OF HOOD
APPLIANCE
HOOD
BRICK OR OTHER NON-COMBUSTIBLE
FACING MATERIAL 6 INCH MAXIMUM
PROJECTION FROM SURFACE OF
FIREPLACE (INCLUDES NON-COMBUSTIBLE
MANTEL PROJECTION)
NON-COMBUSTIBLE BRICK LEDGE
MUST BE TIGHT TO APPLIANCE
FACE OR NON-COMBUSTIBLE SHEATHING
Figure 8.12 Exterior View with Non-combustible Facing Material
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Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
9
Appliance Setup
A. Fixed Glass Assembly
WARNING! Risk of Asphyxiation! Handle fixed glass
assembly with care. Inspect the gasket to ensure it is
undamaged and inspect the glass for cracks, chips or
scratches.
• DO NOT strike, slam or scratch glass.
• DO NOT operate fireplace with glass removed, cracked,
broken or scratched.
• Replace as a complete assembly.
WING NUT LOCATIONS
Removing Fixed Glass Assembly- Interior
• Loosen two wing nuts on bottom glass retainer bracket.
• Loosen and remove two wing nuts on top glass retainer
bracket. Remove glass retainer bracket. See Figure 9.1
• Lift glass assembly off of glass retainer bracket.
Replacing Fixed Glass Assembly - Interior
• Position glass assembly on bottom glass retainer bracket.
Tighten wing nuts on bottom glass retainer bracket.
• Position top of glass assembly, position top glass retainer
bracket and secure with two wing nuts.
9.1 Glass Assembly - Interior Side
GLASS RETAINER BRACKET
WING NUT ON THREADED STUD
9.2 Glass Assembly Detail - Interior Side
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Removing Fixed Glass Assembly- Exterior
C. Clean the Appliance
• Remove vanity panel from appliance to expose glass
latches.
Clean/vacuum any sawdust that may have accumulated
inside the firebox or underneath in the control cavity.
• Pull glass latch out to release. Grasp glass assembly on
sides and pull bottom toward you. Slide glass assembly
down and out from under glass retainer.
D. Lava Rock and Ember Placement
GLASS RETAINER
WARNING! Risk of Explosion! Follow ember placement
instructions in manual. DO NOT place embers directly over
burner ports. Replace ember material annually. Improperly
placed embers interfere with proper burner operation.
Placing Lava Rock
Place lava rock on refractory support pan. Cover entire
support pan surface (see Figure 9.5).
GLASS LATCHES
9.3 Glass Latch Locations - Exterior Side
Figure 9.5 Placement of Lava Rock
Placing the Ember Material
GLASS LATCH
Ember material is shipped with this gas appliance. To place
the ember material:
• Embers CANNOT be placed directly over ports.
• When placing Glowing Embers® onto the burner care
should be taken so that the ports are not covered. Place
the dime-size ember pieces just in front of the port trail,
but not on or in between the ports (see Figure 9.6). Failure to follow this procedure will likely cause lighting and
sooting problems.
9.4 Glass Assembly - Exterior Side
Replacing Fixed Glass Assembly - Exterior
• Slide top of glass assembly into position under glass
retainer. Position bottom of glass assembly and secure
glass clips.
• Replace vanity panel.
B. Remove the Shipping Materials
Figure 9.6 Placement of Ember Materials
Remove shipping materials from inside or underneath
the firebox.
• Save the remaining ember materials for use during
appliance servicing. The embers provided should be
enough for 3 to 5 applications.
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Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
E. Install the Log Assembly
Log Set Assembly: LOGS-MSR
PILOT ASSEMBLY
2
3
5
4
1
6
CAUTION: Logs are fragile! Carefully remove the logs
from the packaging. Remove the cardboard support from
inside of fireplace.
STEP 1. Before positioning the logs, refer to the installation
manual for electric ember set-up and ember placement.
GRATE TINE (HIDDEN)
INDENT
1
BOTTOM VIEW
INDENT
GRATE
BAR
1-inch
BACK VIEW
STEP 2. Log #1 (srv2005-701): Use the indent on the bottom side of the log to position the large end of the log onto
the grate bar as shown. Slide the log back until the indent engages the grate tine as shown above. Position the thin end of
log #1 one inch from port pattern as shown.
Grate Bar Cutout
2
1
Pilot
Assembly
Cutout
STEP 3. Log #2 (SRV2005-700): Position log #2 on the left grate bar and the pilot assembly. Use the cut out notches
on the log to position it as shown.
2005-937F
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2
3
1
STEP 4. Log #3 (srv2005-702): Position log #3 as shown by leaning it against log # 2 and resting the other end on the
peak of the burner. Do not cover any port holes.
2
3
4
3/4 IN.
1
Sharp
Notch
STEP 5. Log #4 (srv2005-703): Locate the sharp notch on log #4 against the grate tine as shown. The smooth cutout
on the bottom of log #4 should rest on the burner surface. The side of Log #4 must be 3/4 inch from the nearest port hole
on the right side of log #4. Do not cover any port holes.
Sharp
Notch
3 2
2
GRATE
TINE
5
4
11
STEP 6. Log #5 (srv2005-704): Using the sharp notch on the heavy end of log #5, align it on the grate tine and set it
on the flat area of log #4 as shown.
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1
FLAT AREA
Notch
4
2
3
5
2
1
STEP 7. Log #6 (srv2005-705): Locate the notch on log #6 and place it against the front right grate tine. Set the
other end of the log so it rests on the flat area of log #1. The orientation of log #6 in relation to the grate tine is shown
below.
3
2
5
4 6 1
Notch engaged with
grate tine.
Log Assembly Installed.
F. Appliance Start Up
After appliance is completely set up, replace glass
assembly (assemblies). Start the appliance and perform
a leak check using a commercially available, noncorrosive
leak check solution. Be sure to rinse off all leak check
solution following testing. Extinguish the pilot and turn
the appliance off.
G. Install Trim and/or Surround
• Install optional trim kits and/or surrounds using the
instructions included with the accessory.
• Use non-combustible materials to cover the gap between
the sheet rock and the appliance (when applicable to the
model).
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15
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10
Reference Materials
A. Accessories
Install approved accessories per instructions included
with accessories. Contact your dealer for a list of approved accessories.
WARNING! Risk of Fire and Electric Shock! Use ONLY
Hearth & Home Technologies-approved optional accessories with this appliance. Using non-listed accessories
could result in a safety hazard and will void the warranty.
Remote Controls, Wall Controls and Wall
Switches (Optional)
Follow the instructions supplied with the control installed
to operate your fireplace:
For safety:
• Install a switch lock or a wall/remote control with child
protection lockout feature.
• Keep remote controls out of reach of children.
See your dealer if you have questions.
Decorative Doors and Fronts
WARNING! Risk of Fire! Install ONLY doors or fronts
approved by Hearth & Home Technologies. Unapproved
doors or fronts may cause fireplace to overheat.
This fireplace has been supplied with an integral
barrier to prevent direct contact with the fixed glass
panel. DO NOT operate the fireplace with the barrier
removed.
Contact your dealer or Hearth & Home Technologies if
the barrier is not present or help is needed to properly
install one.
For more information refer to the instructions supplied with
your decorative door or front.
Optional Fan
If desired, a fan kit may be added. Contact your dealer to
order the correct fan kit. Follow the instructions supplied
with the fan kit to operate your fan. See your dealer if you
have questions.
Please contact your Hearth & Home Technologies dealer with any questions or concerns.
For the location of your nearest Hearth & Home Technologies dealer, please visit www.hearthnhome.com.
Hearth & Home Technologies
7571 215th St, Lakeville, MN 55044
Printed in U.S.A. - Copyright 2014
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Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. B • 1/15