Morsø 3112, 3142 wood burning stove Instructions

Instructions for Installation and Use
3112 & 3142
EN 13240 · (81% Efficiency)
DEFRA approved for use in United Kingdom smoke control areas
Distributed by: Morsø UK
Valley Drive · Swift Valley · Rugby, Warks CV21 1TW · England
www.morsoe.com
Enjoy your new Morsø stove!
Morsø, the largest stove manufacturer in Denmark, has
been making cast-iron stoves of the highest quality since
1853. By carefully following the instructions below, we
are certain that you will enjoy many years of comfortable
warmth from your new Morsø stove.
CONTENTS
1.0
Installing your Morsø stove
1.1
Unpacking the stove
1.2
Installing the stove
1.3
Chimney Sweeping
1.4
Stove placement/clearance requirements 1.5
The chimney
1.6
Pipe connections
1.7
Connecting to a masonry chimney
1.8
Connecting to a steel chimney
1.9
Draft conditions
Page
3
3
3
3
5
5
6
6
7
2.0
Firing the stove
2.1
Lighting instructions and fuelling intervals
8
9
3.0
Routine stove maintenance
3.1
External maintenance
3.2
Internal maintenance
3.3
Cleaning the stove
12
12
13
4.0
Alternative fuel types
14
5.0
HETAS admendments
16
Additional accessories
Morsø also offers a comprehensive line of floor plates and accessory products that can facilitate the safe and efficient operation and maintenance of your Morsø stove.
Cast iron
Cast iron is a live material. There are no two ovens that are identical. This is partly due to the
tolerances of the casting process, partly because the ovens are a work of craftsmanship.
Minor unevennesses may also occur in the cast iron surface.
2
1.0 Installing your Morsø stove
1.1 Unpacking the stove
3112: After removing the outer packaging, flatten it and lay onto the floor close to the stove;
this can then act as protective work surface during the assembly process.
Next, remove the legs and bolts from inside the stove. Gently lay the stove onto its back and
unscrew it from the wooden pallet. Using the bolts supplied, now screw the legs into position
on the underside of the base. The stove should now be lifted and moved into the upright position, avoiding excess load on the back legs.
The stove is heavy and therefore it is strongly recommended that when lifting, it is undertaken
by two people. Morsø 3112 weighs 100 kg.
3142: After removing the outer packaging simply lift the stove off the wood pallet and carefully
move into position. The stove is heavy and therefore it is strongly recommended that when lifting, it is undertaken by two people. Morsø 3142 weighs 120 kg
The stove is intended for intermittent use.
1.2 Installing the stove
The stove and chimney installations MUST comply to all current National and Local Building Regulations; your approved Morsø dealer or your local building control officer can advise
regarding this. Ultimately, it is you and your installer who is responsible that the installation
complies.
1.3 Chimney Sweeping
It may also be wise to consult your local chimney sweep before installing the stove. After your
stove has been installed, it is advisable to have the chimney checked and swept at least once a
year. In any case, if your chimney has not been used for some time, it should be inspected for
cracking, bird nests, etc. before it is put back into use.
1.4 Stove placement/clearance requirements
Minimum Clearance requirements apply if the stove is placed near to combustible materials.
Permitted clearances to combustible materials are also indicated on the data plate on the rear
of the stove.
In situations where the stove is to be fitted into a brick or non-combustible recess, we recommend that the stove is installed with at least 10 - 15 cm clearance to the wall, this will allow
heat to circulate around the stove; also the maintenance of the outside stove is easier. When
applied to masonry, a layer of wallpaper is normally classified as a non-combustible surface.
3
Minimum clearances to combustible surfaces:
Stove type
Behind the
stove (A)
To the sides
of the stove (B)
Above the Stove
furniture
Clearances to
furniture
Morsø 3112
radiation
200 mm
600 mm
600 mm
800 mm
Morsø 3142
convection with
uninsulated flue
Morsø 3142
convection with
insulated flue
200 mm
400 mm
600 mm
800 mm
150 mm
400 mm
600 mm
800 mm
A
A
Min. afstand til brandbar hjørnevæg for Morsø Min.
3112afstand til brandbar hjørnevæg for Morsø
Min.3112
afstand til brandbar hjørnevæg for Morsø 3142
45°
B
45°
A
B
B
3112 corner installation
06.10.2009
Released:
Dim. without indication of margin acc. to DS/ISO 2768-1 m
Distance to Corner wall
Weight:
Morsø 3112
Model no.
Date:
RSV
Construction:
Date of print: 01-12-2009
Date of print: 30-11-2009
Material:
Sign.:
Title:
Afstand til hjørnevæg
Format: Material:
Scale: Weight:
A4
1:10
Itemno.:Model no.
3142 corner installation
Rev. Revisions
Construction:
Title:
Sign.:
Date:
RSV
06.10.2009
Afstand til hjørnevæg
Released:
Dim.
without indication of margin acc. to DS/ISO 2768-1 m
Distance to Corner wall
Material:
Format:
Morsø 3112
Date of print: 01-12-2009
Rev. Revisions
Dim. without indication of margin acc. to DS/ISO 2768-1 m
Scale:
Weight:
A4
1:10
Model
no.
Itemno.:
Rev. Revisions
Construction:
Released:
Distance to Corner wall
Morsø 3142
On the floor
3100-118 a
3100-118 a
National and Local Building Regulations must again be observed when considering the type,
thickness and area of the hearth to be used in the installation. The hearth temperature under
safety test was less than 65°C.
Drawingtype:
Dimension Skecth
Location of file:
U:\udv\Tegninger\Diverse\Afstand til brandbare vægge\Afstand til hjørnevæg.SLDASM
DrawingDrawingtype:
no.:
Location of file:
Side 2 of
6
Dimension
Skecth
U:\udv\Tegninger\Diverse\Afstand til brandbare vægge\Afstand til hjørnevæg.SLDASM
Drawing no.: Dimension Skecth
Side 3 of 6
Drawingtype:
Location of file:
U:\udv\Tegninger\Diverse\Afstand til brandbare vægge\Afstand til hjørnevæg.SLDASM
D
Sign.:
Title:
Afstand til hjørnevæg
Format:
Scale:
RSV
06.1
A4
1:10
Itemno.:
Drawing no.:
One should of course always make certain that the underlying floor surface can bear the
weight of the stove.
Clearances to Furniture
The clearance requirement from the stove to any furniture should be no less than 800 mm. It is
always necessary to assess whether or not any furniture or other objects situated close-by can
be affected by heat, i.e. dried out.
The distance to any combustible material in front of the stove is minimum 800 mm.
The surface of a wood burning stove gets extremely hot when used and therefore special attention to safety is paramount, especially where children or the infirm are present.
The stove is equipped with a removable stainless steel handle; for safety reasons it should be
removed during use, especially where children are nearby.
4
Sid
3100-119 a
This drawing is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorizationThis
from
drawing
the company.
is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization
This drawing
from
is Morsø
the company.
Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization from the company.
1.5 The chimney
Only if National or Local Regulations permit are you permitted to connect a stove into a chimney that is shared by another appliance. YOU MUST be aware of any applicable Regulations in
this respect.
The wood-burning stove must never been connected to a chimney to which a gas-burning
stove or appliance is connected. An efficient modern stove places heavy demands on the chimney, and you should have the chimney regularly swept and inspected by your approved chimney sweep. The cross-sectional area of the chimney (at its narrowest point) must comply with
National and Local Building Regulations. Generally, the area needed for a Morsø wood-burning stove installation should measure at least 175 cm2 (150 mm diameter).
An over-sized chimney is generally hard to keep warm and results in poor draft. In cases
where there is an oversized masonry chimney, it is recommended that the chimney be lined
using an appropriate chimney lining system with the correct internal diameter. With respect to
the chimney termination, all chimneys should terminate in accordance with National and Local
Building Regulations.
Note that National and Local Regulations also apply with regard to the placement of chimneys and flues in connection with thatched roofs. See the section on Draft Conditions, 1.9.
The chimney or flue system must be equipped with access doors for inspection and cleaning.
The size of the cleaning door in the chimney must at least equal to that of the cross-sectional
area of the chimney. In the event that a chimney fire occurs resulting from faulty operation or
prolonged use of damp wood fuel, close the air vents completely and contact your local fire
department immediately.
1.6 Fluepipe connections
The Stove comes ready prepared to accept an outside air-box kit, for markets where national
or local authorities require it. The outside air-box kit is ordered separately – Product Code:
54362021, detailed fitting instructions are included within the kit.
The stove is supplied with a factory fitted flue collar (1), this is fitted to the top plate. A round
cast iron blanking plate covers the rear flue outlet (behind the rear heat shield). Where a rear
flue installation is required, simply knock out the top steel plate in the rear heat convection
panel. This is best done by applying gentle hammer taps immediately onto the small ”bridges”
in the circular cut-outs. Once the knock-outs have been removed unbolt the cast iron blanking
plate and install it into the top of the stove. The flue collar can then be bolted over the rear flue
outlet using the bolts and clamps provided.
The cast iron blanking plate can also function as an extra clean-out access whilst performing
the annual cleaning service of the stove and chimney.
1.8 Connecting to a stainless steel insulated chimney system
5
How to position the baffle and access baffle
Make sure that the upper baffle plate (2) is located into its correct position. It should be placed on top of the rear (fixed) baffle section and secured into position against the 2 upstanding
cast lugs. (See diagram).
Note: The access baffle (3) must always be fitted when the stove
is in use, as it not only assists the combustion process, but also
gives essential protection to the stove’s top plate.
1.7 Connecting the stove to a masonry chimney
A wall sleeve should be bricked securely into the wall of the chimney at the appropriate height
and the stovepipe inserted centrally. The pipe must not extend into the actual chimney opening, but rather must reach only to the inside of the chimney aperture. The gap between the
stovepipe and sleeve must be sealed using glass fibre packing rope.
Only use stovepipe components that comply to National and Local Building Regulations.
If your installation involves taking the chimney straight up and through the ceiling, you must
comply with National, Local Building Regulations or flue manufacturers instructions concerning clearances to combustible materials such as walls, floor joists and ceilings. The joint between the stove flue collar and the stovepipe must also be sealed using the glass fibre rope
provided. It is important that the insulated flue system is properly supported both at ceiling
level and at roof level. THE STOVE MUST NOT BEAR THE WEIGHT OF THE CHIMNEY SYSTEM
(See chimney manufacturer’s instructions). Excessive weight on the stove will inhibit expansion and could lead to damage of the stove top. Damage caused to the stove in this way would
not be covered by the manufacturers guarantee.
In the event that a chimney fire occurs resulting from faulty operation or prolonged use of
damp wood fuel, close the air vents completely and contact your local fire department immediately.
Be aware of the following:
Cleaning procedure: Discuss this with chimney sweep or qualified installer prior to or
during the stove installation.
Chimney draft: If the chimney draft is naturally poor it is better to install the flue from
the top of the stove so as to minimise any internal resistance of the flue gases.
Avoid having any more than 2 bends in the flue system and limit the length of the offset
between bends.
6
Fresh air supply
A wood-burning stove requires air for combustion and therefore you may need to install additional ventilation to the room, especially so in well insulated houses. If the
air supply is inadequate the chimney draft may be too weak, with the possible result
that the stove will not burn properly; smoke spillage may also occur during the refuelling process. On a positive note, a properly installed wood-burner will give even the
most efficient houses a pleasant and natural ventilation.
1.9 Draft conditions
If smoke spillage occurs when the fire door is opened, it is probably due to poor chimney draft.
This type of stove requires at least 12 pa of chimney draft to achieve satisfactory combustion
and smoke spillage prevention. However, in cases where the stove door is opened too vigorously you could expect that slight smoke spillage may occur. The flue gas temperature at the
rated output is 243˚ C relative to 20˚ C. The flue gas flow is 5.43 gr/sec.
If you have any doubts, you may want to have your installer measure the draft in the chimney.
Draft conditions
The chimney’s draft is the resulting effect within the flue caused by the difference in
temperature within the flue and the cooler temperature outside. Other factors that can
influence the level of draft include the length of the flue, insulation of the chimney, adverse weather conditions or tall buildings or trees nearby the flue terminal.
Poor draft occurs when:
• The atmospheric temperature difference is too low, e.g. a poorly insulated chimney.
If the chimney is excessively cool, it may help to ‘prime’ the flue before the fire is lit.
Just place a screwed-up sheet of newspaper in the flue-ways of the stove and ignite.
• The outside temperature is too high, e.g. during the summer months.
• There is no air movement (wind) outside.
• The chimney is not tall enough, with the result that the terminal sits in the lee of the
roof surface or in the vicinity of tall trees or neighbouring buildings. These conditions
are also associated with downdraft where the flue gases are pushed back down the
chimney.
• Flue draft is diluted by residual air entering the chimney, e.g. due to inadequate fluepipe joints or leaks at the cleaning door or flue collar.
• Unsealed, unused fireplaces are connected to the chimney.
• The flue is blocked, e.g. by soot, due to inadequate cleaning, loose debris or even a
birds nest.
• The house is too tightly sealed (see section on Fresh air supply).
A good draft is achieved when:
• The temperature difference between the chimney and outside is high. This also applies during firing, when the need is greatest.
• The weather is clear and there is a good wind.
• The chimney is of the proper height, i.e. minimum 4 meters over the stove and the termination adequately clear of the roof line.
7
2.0 Firing the stove/Using your stove
The heat output of your stove is regulated by means of the air inlets. The primary air supply,
i.e. the air which passes through the shaking grate, is controlled by the air control on the door,
while the secondary air supply, i.e. the air supplied to the fire across the glass window, is controlled by the air control lever under the ash lip.
The stove’s rated heat output is 5 kW. The efficiency is 78,6%.
Your new Morsø stove is EN-tested and recommended to be fired with wood. The stove is
equipped with a removable handle; for safety reasons it should be removed during use, especially where children are nearby.
N.B!
Wood is a material that contains a great deal of gas (approximately 75 %). The gases
are released when the wood is lit and heated up. For this reason, it is important that the
gases are ignited quickly after stoking. If the wood just lies smouldering, especially after
re-stoking, a lot of smoke is created, which, in the worst case, may cause an explosive
ignition of the gasses, resulting in damage to the stove.
In order to ignite the gases that are released from the wood, and to keep clear, lasting
flames during the combustion process, it is important to let in the required quantity of
oxygen (air supply) at all times.
The setting of the air supply, the method of ignition and the lighting intervals depend on
the draught in the chimney, the wind and weather, the amount of heat required, the fuel,
etc. This means that it may take some time before you get to know the correct functioning
of the stove under any given circumstances.
Although you can fire your Morsø stove with almost all kinds of wood, you should not fire
with wet wood, or unseasoned wood. Wood ought to be stored under a roof for at least 1
year, and preferably 2 years, with free access to wind. Wood should be chopped as soon
as possible after felling if it is to dry quickly. The wood can be used once the moisture
content is less than 20%. During the EN test, all stoves are tested with wood with a moisture content of (16 ± 4)%.
Never use driftwood, as it usually has a high salt content, which damages both the stove
and the chimney. Impregnated and painted wood and chipboard emit poisonous smoke
and fumes, so they should not be used as fuel either.
Please note that liquid fuel may not be used in the stove.
Pieces of wood with a diameter greater than 10 cm should always be chopped. The pieces
of wood should be short enough to be able to lie flat over the layer of embers, with air at
both ends. The maximum length of fuel in the stove is 30 cm. The maximum quantity of
fuel is 2.5 kg/hour (max. 3 pieces of wood each time you re-stoke).
The first few times you light the stove, the fire should be moderate, so that the heatresistant paint can harden before firing more vigorously. During the hardening phase, the
paint may develop obnoxious smoke and smell the first time it is lit, which is very normal.
Make sure that the room is well ventilated during this period.
8
When heating up or cooling down, the material is exposed to major temperature differences that may cause the stove to give off creaking sounds.
2.1 Lighting and refuelling intervals
Kindling (dry sticks) requires a large volume of air for quick combustion. When lighting the
stove from cold it will help to keep the main door ajar (2-3cms) for the first few minutes. The
primary and secondary air supplies should be fully open during lighting.
1.A layer of embers will form rapidly if the stove is lit with
2 - 4 fire lighters or 7 - 10 rolled up sheets of newspaper,
underneath roughly 1-2 kg of dry kindling.
2.Fully open the primary and secondary air supplies that is
controlled with the handle beneath the ash lip.
3.After the paper/fire lighters have caught fire, leave the fire
door ajar about 2-3 cm, so that the chimney draws well.
4.After 5-10 minutes the chimney draft should be established, at this point close the fire door. If all the necessary
conditions are met, a nice layer of embers will start to accumulate after another 15 - 20 minutes.
9
5.Refuelling of your stove should be done while
there are still glowing embers in the bed. Spread the embers
across the bottom, but concentrated mostly towards the front
of the stove.
6.Place three pieces of fuel weighing roughly 0.7 kg and measuring
about 30 cm in length across the embers in one layer, with spacing
of roughly 1 cm between the pieces of wood.
7.When the primary air supply is opened all the way and the
door is closed, the new fuel will ignite in a few minutes.
Important!
It is important that the fresh quantity of wood starts to
burn quickly. To ensure the fuel lights quickly, open the
combustion air to max. or leave the door ajar to allow in
the amount of air needed to light the wood.
If, however, the wood only smoulders, there will be a
strong build-up of smoke, which at worst can cause an explosive ignition of the flue gases with the risk of material
damage and personal injury.
8.Once the new fuel has taken, adjust the secondary air amount to
the desired setting; optimal combustion will continue until glowing
charcoals are produced.
Make sure that there is always enough air (oxygen) to maintain
clear, lasting flames when, and after, reducing the amount of combustion air.
Under normal chimney draft conditions,
expect to refuel your stove every 70 - 80 minutes.t
10. A new charge of wood can be added by repeating steps 5 & 6.
10
The stove door should normally be opened gently the first 2 - 3 centimetres, then you should
wait until the pressure has equalised before opening the door all the way. This technique will
prevent smoke from getting out, particularly when there is a poor draught.
The stove door should never be opened when the stove is being fired vigorously.
Once the wood has burned out, it becomes glowing charcoal. If a good layer of embers has
already formed on top of a sufficient layer of ash, the stove can keep warm for a very long time,
not least due to the favourable qualities of the cast iron.
We would strongly recommend that you do not leave your stove alit at night. It
harms the environment, and constitutes very poor use of the wood, as the gases in
the wood do not ignite at the low temperature, but settle as soot (unburned gases)
in the chimney and stove. Extreme conditions, such as poor draught in the chimney,
large quantities of wood or wet wood, may, in the worst-case scenario, cause an
explosive ignition.
When firing in the summer period, when there is minimal need for heat, the combustion will be poor. The stove provides too much heat, so the combustion should
be reduced. But always remember to make sure that there are lasting flames until
the wood becomes charcoal. If you want a weaker fire, stoke up using less wood.
If you fire the stove using wet wood, a lot of the fuel’s thermal energy will be spent
forcing the water out of the wood, without releasing any heat to the stove. This
incomplete combustion results in a layer of soot being left in the stove, pipe and
chimney.
Comparison between wood-burning and oil-burning
Type of wood (moisture content 20%)
No. of cubic metres per 1000 litre of oil
Oak7.0
Beech7.0
Ash7.2
Sycamore7.5
Birch8.0
Elm8.9
Common spruce 10.4
Silver fir
10.9
11
3.0 Routine stove maintenance
3.1 External maintenance
The surface of the stove is painted with heat-resistant Senotherm paint. If the stove is used too
vigorously, the painted surface may take-on a greyish tinge. It is easily maintained by simply
vacuuming the surface with a soft brush attachment and applying two light layers of paint.
Morsø stoves are painted in Morsø dark grey. The touch-up paint is available either as aerosol
spray or as regular brush-on.
3.2 Internal maintenance
Ceramic glass
If the stove is used and installed onto a flue with the correct draft, very little or no deposits
should appear on the ceramic glass. It is usual for soot deposits to appear during long slumbering fires however, once the fire has been re-established to a burn brightly, these deposits
should burn off.
If the glass window becomes thoroughly covered in soot due to faulty operation or poor draft,
the soot can be easily removed using, e.g. Morsø Glass Cleaner, but please ensure that the
glass is cold before cleaning. Avoid fuelling the stove with wood that is so long that it presses
against the glass when the door is closed.
Reasons for sooted glass window:
• fuel is too wet (green)
• pieces of fuel/uncut wood are too thick
• operating temperature of the stove is too low
• too much air coming through bottom grate
• poor chimney draft
Ceramic glass replacement
Ceramic glass cannot be recycled because it has a higher melting point that ordinary glass. If
ceramic glass is mixed with ordinary glass, the raw material is spoiled, and the reclaiming process may be halted. Take care that the ovenproof glass does not end up among ordinary recycled
waste. That will be a great benefit to the environment.
Note: Should be handed in to a recycling station as ceramic glass.
Internal cast-iron parts and/or wear components
The shaking grate, baffle plate and other internal components that are in direct contact with
the fire are all constituted as ‘wear’ components or consumables, as, they are exposed to the
most wear. When used properly, these parts will last for many years, but overly vigorous use
will naturally shorten the lifespan. The aforementioned parts are all easily replaceable.
If the baffle plate is damaged or warped and is not replaced in time, the top plate could become subject to excessively high temperatures, which may lead to damage here also.
Note: that no unauthorised alterations to the stove design should be undertaken, and always
ensure that any replacement parts purchased are Morsø original parts.
12
Reasons for premature wear of internal parts
• Stove being used/fired too vigorously • Too little air passing through the bottom grate
• Use of excessively dry wood (wood from old furniture)
• Excessive debris collection on baffle plate or inner fireback (see
section on cleaning)
• Ash level too high in the ash pan (see section on ash)
Gaskets
The rope gaskets in the door will need regular inspection in order to ensure and maintain full
control of your stove’s burning rate; over time the rope gaskets will harden and will become
less airtight; at this point you will need to remove and replace with new. Use only the genuine
Morsø gasket kit, which comes with detailed replacement instructions.
NOTE:
Normal wear components (inner parts) are not covered by Morsø’s 10-year guarantee.
Maintenance products (Spare Parts, Glass Cleaner, Paint, Gasket Kit, etc) are all available
from your authorised Morsø dealer.
3.3 Cleaning the stove
During normal use and sweeping of your stove and chimney, a layer of ash, soot or debris can
form, particularly on the top of the baffle plate or inner fireback. Any deposits allowed to buildup over time will have an insulating effect on these parts, thus restricting expansion; this will
ultimately result in a shorter lifespan. The chrome-iron baffle plate and inner fireback/bricks
can easily be removed from the stove and should be regularly checked for debris and cleaned.
You must ensure that your chimney sweep removes all soot and debris from the stove after the
sweeping process.
Your chimney should be swept at least once a year; however a regular inspection of your stovepipe and chimney will determine whether a more frequent approach should be adopted.
Ash
In order to achieve the highest combustion temperature possible when burning solely wood,
it is important that a 1cm deep bed of ash is established on top of the grate area. Excess ash
should be removed by simply agitating the grate by moving the riddling rod on the outside of
the stove; surplus ash will fall into the ash pan below the grate where it can be easily and
safely removed.
Be sure to empty the ash pan before it gets completely full; if the ash level reaches the underside of the grate, air flow through the grate will be restricted and will lead to over-heating and
premature wear of the grate parts.
When emptying the ash pan always dump the waste ash into a metal container (dustbin) where
it can fully cool before being taken away by your refuse collector. Ash from a wood-burning
stove does not benefit your garden as fertiliser.
13
4.0 Alternative fuel types
Your new Morsø stove is EN-approved for burning wood.
However, the stove is capable of burning other solid fuels as manufactured smokeless coal or
good quality anthracite (stove nuts). If you fire your stove with any fuel other than wood, it may
help to use coal insert/fuel economisers (available for most models), which simply fit into the
left and right sides of the firebox. Designed primarily to guide the solid fuel over the grate area
they also slightly reduce the firebox capacity allowing you to have smaller fires.
This is an additional accessory and can be purchased from your authorised Morsø dealer.
BITUMINOUS HOUSE COAL SHOULD NEVER BE USED IN YOUR STOVE.
Before burning solid fuel
Install the coal insert (where available) into the left and right sides of the firebox. All stove
models are supplied with 1 front grate bar, however in the case of the 1400 series an optional
second front grate bar can be purchased from your Authorised Morsø Dealer. A second front
grate bar will allow for a deeper fire bed and a longer burn time.
IN ALL MODELS NEVER LOAD THE FUEL ABOVE THE FRONT GRATE BAR LEVEL.
Lighting with solid fuel
All air vents must be fully open during the lighting process.
Start by placing 5-10 crumpled sheets of newspaper or 2 Morsø firelighters on the grate of
the stove; then carefully spread approximately 1 kg of well-dried kindling on the top. Light the
paper/firelighters. Once the kindling has fully ignited, gradually add a small quantity of solid
fuel, adding a little bit more once it has ignited. Continue in this manner until the entire grate
is covered with glowing coals. The level of fuel in the stove should never exceed the level of
the front grate(s). Once the bottom half of the fuel bed is glowing, you should partly close the
primary air supply. Once the stove has reached your desired temperature you can maintain the
output by opening further for more heat or closing for less heat. The secondary air regulator
must always be open just enough so that the flames burn almost clearly and the ceramic glass
window stays clean.
Note: In cases where smokeless fuels containing petrocoke are burned, a pale greyish
layer may be deposited on the inner glass surface when the stove is lit. Fuels containing a high content petrocoke may cause a glistening in the surface of the ceramic glass. Although visible, the structure of the glass will remain intact and the stove
safe. Glass is not covered by the manufacturer’s 10-year guarantee.
In order to maintain the combustion process, the entire grate area must remain covered by glowing coals. If the coal layer is too shallow you will have less heat and it would not be necessary to
supply air via the top vent. You must empty the ash pan whenever it becomes full. Different fuels
have different ash content and therefore the regularity of the de-ashing process can vary.
Fuel storage
Your fuel supply should always be stored in a suitable, weather-tight coal bunker. These are
usually available through your approved coal merchant.
14
Maintenance parts
Description
Riddling grate
Upper Baffle plate
Baffle plate, complete
Access door (at baffle)
Door Glass
Side brick
Back brick
Product Code
44310900
34313400
54313561
34313600
79310000
79311300
79311400
15
5.0 HETAS amendments
Health and safety precautions
Special care must be taken when installing the stove such that the requirements of the Health
and Safety at Work Act are met.
Handling
Adequate facilities must be available for loading, unloading and site handling.
Fire Cement
Some types of fire cement are caustic and should not be allowed to come into contact with the
skin. In case of contact wash immediately with plenty of water.
Asbestos
This stove contains no asbestos. If there is a possibility of disturbing any asbestos in the
course of installation then please seek specialist guidance and use appropriate protective
equipment.
Metal Parts
When installing or servicing this stove care should be taken to avoid the possibility of personal
injury.
Note of references to the current UK regulations
In all cases the installation must comply with current Building Regulations, Local Authority
Byelaws and other specifications or regulations as they affect the installation of the stove.
It should be noted that the Building Regulations requirements may be met by adopting the relevant recommendations given in British Standards BS 8303, BS EN 15287-1:2007 as an alternative means to achieve an equivalent level of performance to that obtained following the guidance given in Approved Document J.
Please note that it is a legal requirement under England and Wales Building Regulations that
the installation of the stove is either carried out under Local Authority Building Control approval or is installed by a Competent Person registered with a Government approved Competent Persons Scheme. HETAS Ltd operate such a Scheme and a listing of their Registered
Competent Persons can be found on their website at www.hetas.co.uk.
This stove must not be installed into a chimney that serves any other heating appliance.
More detailed advice about existing chimney usage
NOTE: A chimney height of not less than 4.5 metres measured vertically from the outlet of the
stove to the top of the chimney should be satisfactory. Alternatively the calculation procedure
given in EN 13384-1 may be used as the basis for deciding whether a particular chimney design will provide sufficient draught.
The outlet from the chimney should be above the roof of the building in accordance with the
provisions of Building Regulations Approved Document J.
If installation is into an existing chimney then it must be sound and have no cracks or other
faults which might allow fumes into the house. Older properties, especially, may have chimney
faults or the cross section may be too large i.e. more than 230 mm x 230 mm. Remedial action
should be taken, if required, seeking expert advice, if necessary. If it is found neces
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sary to line the chimney then a flue liner suitable for solid fuel must be used in accordance
with Building Regulations Approved Document J.
Any existing chimney must be clear of obstruction and have been swept clean immediately before installation of the stove. If the stove is fitted in place of an open fire then the chimney
should be swept one month after installation to clear any soot falls which may have occurred
due to the difference in combustion between the stove and the open fire.
If there is no existing chimney then any new system must be to the designation described above and in accordance with Building Regulations Approved Document J.
A single wall metal fluepipe is suitable for connecting the stove to the chimney but is not suitable for use as the complete chimney. The chimney and connecting fluepipe must have a minimum diameter of 150 mm and its dimension should be not less than the size of the outlet
socket of the stove.
Any bend in the chimney or connecting fluepipe should not exceed 45°. 90° bends should not
be used.
Combustible material should not be located where the heat dissipating through the walls of fireplaces or flues could ignite it. Therefore when installing the stove in the presence of combustible materials due account must be taken of the guidance on the separation of combustible
material given in Building Regulations Approved Document J and also in these stove instructions.
If it is found that there is excessive draught in the chimney then a draught stabiliser should be
fitted. Fitting of a draught stabiliser will affect the requirement for the permanent air supply
into the room in which the stove is fitted in accordance with Approved Document J (see also
combustion air supply).
Commissioning and handover
Ensure all parts are fitted in accordance with the instructions.
On completion of the installation allow a suitable period of time for any fire cement and mortar
to dry out, before lighting the stove. Once the stove is under fire check all seals for soundness
and check that the flue is functioning correctly and that all products of combustion are vented
safely to atmosphere via the chimney terminal.
On completion of the installation and commissioning ensure that the operating instructions for
the stove are left with the customer. Ensure to advise the customer on the correct use of the
appliance and warn them to use only the recommended fuel for the stove.
Advise the user what to do should smoke or fumes be emitted from the stove. The customer
should be warned to use a fireguard to BS 8423:2002 (Replaces BS 6539) in the presence of
children, aged and/or infirm persons.
Warning note on fume emission
Properly installed, operated and maintained this appliance will not emit fumes into the dwelling. Occasional fumes from de-ashing and re-fuelling may occur. However, persistent fume
emission is potentially dangerous and must not be tolerated. If fume emission does persist,
the following immediate actions should be taken:17
a) Open doors and windows to ventilate room.
b) Let the fire out or eject and safely dispose of fuel from the appliance.
c) Check for flue or chimney blockage, and clean if required.
Do not attempt to relight the fire until the cause of the fume emission has been identified and
corrected. If necessary seek expert advice.
Extractor fan
There must not be an extractor fan fitted in the same room as the stove as this can cause the
stove to emit smoke and fumes into the room.
Permanent air vent
The stove requires a permanent and adequate air supply in order for it to operate safely and
efficiently.
In accordance with current Building Regulations the installer may have fitted a permanent air
supply vent into the room in which the stove is installed to provide combustion air. This air vent
should not under any circumstances be shut off or sealed.
Chimney cleaning
The chimney should be swept at least twice a year. It is important that the flue connection and
chimney are swept prior to lighting up after a prolonged shutdown period.
If the stove is fitted in place of an open fire then the chimney will require sweeping after a
month of continuous operation. This is a precaution to ensure that any “softer” deposits left
from the open fire usage have not been loosened by the higher flue temperatures generated by
the closed stove.
Periods of Prolonged Non-Use
If the stove is to be left unused for a prolonged period of time then it should be given a
thorough clean to remove ash and unburned fuel residues. To enable a good flow of air through
the appliance to reduce condensation and subsequent damage, leave the air controls fully
open.
Use of fireguard
When using the stove in situations where children, aged and/or infirm persons are present a
fireguard must be used to prevent accidental contact with the stove. The fireguard should be
manufactured in accordance with BS 8423:2002 (Replaces BS 6539).
Use of operating tools
Always use the operating tools provided when handling parts likely to be hot when the stove is
in use.
Aerosol sprays
Do not use an aerosol spray on or near the stove when it is alight.
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Morsø Jernstøberi A/S - 02.06.2014 - 72311200
www.morsoe.com