Morso UK 1410 User manual

Supplementary Installation &
Operation instructions for
UK Market
For use Morsø UK Stoves EN
13 240 & HETAS Ltd.
Distributed by: Morsø UK
Valley Drive · Swift Valley · Rugby, Warks CV21 1TW · England

SUPPLEMENTARY INSTALLATION INSTRUCTIONS FOR USE
WITH MORSØ UK STOVES
PLEASE READ THE INSTRUCTION MANUAL AND THESE SUPPLEMENTARY
INSTRUCTIONS CAREFULLY BEFORE INSTALLATION
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 and BS 7566 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.
CO Alarms:
Building regulations require that when ever a new or replacement fixed solid fuel or wood/biomass
appliance is installed in a dwelling a carbon monoxide alarm must be fitted in the same room as the
appliance. Further guidance on the installation of the carbon monoxide alarm is available in BS EN
50292:2002 and from the alarm manufacturer’s instructions. Provision of an alarm must not be
considered a substitute for either installing the appliance correctly or ensuring regular servicing and
maintenance tof the appliance and chimney system.
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.
Health and Safety Precautions
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.
Stove weights including packaging
Model N°
Weight
Kg
Model N°
Weight kg
Model N°
Weight kg
Model N°
Weight
Kg
Model
N°
Weight
Kg
1410
70
3410
110
7470
108
S10-40
98
Ø6
112
1412
70
3440
127
7940
152
S11-70
102
Ø8
145
1430
72
3610
220
7943
162-174
S11-40
76
1440
90
6140
105
7948
156
S11-42
73
1442
90
6148
118
7970
135
S11-43
82
1630
145
7110
140
7990
189
S11-90
96
2110
115
7440
105
8140
165
S50-40
169
2140
140
7442
116
8141
192
S80-90
165
3112
95
7443
109
8142
190
S81-90
77
3142
113
7448
110
8147
204
Ø4
86
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 and consult manufacturers guidelines.
Asbestos
Morsø stoves do not contain 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.
In the UK these stoves have been approved by HETAS Ltd as an intermittent operating appliance for
burning wood logs only.
It should be noted that it is an offence to burn wood logs in a stove if it is installed within a Smoke
Control Area in the UK unless the stove is approved to do so. The nominal heat outputs for the various
stoves are as follows:
Model
N°
Nominal Heat Output
KW
Net Eff
%
Gross Eff
%
Model
N°
Nominal Heat Output
KW
Net
Eff %
Gross
Eff %
1410
4,5
76
69,2
7943
7,3
79
71,9
1412
5
74.6
67,9
7948
7,3
79
71,9
1430
4,6
71
64,6
7970
7,3
79
71,9
1440
4,5
76
69,2
7990
7,3
79
71,9
1442
5
74.6
67,9
8140
6,3
80.3
73,3
1630
10,5
74
64,3
8141
6,3
80.3
73,3
2110
9
72
65,5
8142
6,3
80.3
73,3
2140
5,6
76
69,2
8147
6,3
80.3
73,3
3112
5
81
73,7
S10-40
5
81,3
74
2 3

3142
5
81
73,7
S10-70
5
81,3
74
3410
6,5
80.1
72,9
S11-40
4
83
75,5
3440
6,5
80.1
72,9
S11-42
4
83
75,5
3610
9,8
74
67,3
S11-43
4
83
75,5
6140
5,9
80.1
72,9
S11-90
4
83
75,5
6148
5,9
80.1
72,9
S50-40
8
78,4
71,3
7110
5,4
75.5
68,7
S80-90
9
76,7
69,7
7440
4,3
82,3
74,9
S81-90
4
88
80,5
7442
4,3
82,3
74,9
Ø4
5,6
81
73,7
7443
4,3
82,3
74,9
Ø6
7,7
75
68,3
7448
4,3
82,3
74,9
Ø8
9,3
75
65,5
7470
4,3
82,3
74,9
7940
7,3
79
71,9
There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit
fumes into the room.
Chimney
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 BS 5854:1980
may be used as the basis for deciding whether a particular chimney design will provide sufficient
draught.
If installation is into an existing chimney then it must be sound and free from cracks or other faults which
might allow fumes into the property.
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 either a prefabricated block chimney in accordance with Building
Regulations Approved Document J or a twin walled insulated stainless steel flue to BS 4543 can be used.
These chimneys must be fitted in accordance with the manufacturer’s instructions and Building
Regulations.
A single wall metal fluepipe is suitable for connecting the stove to the chimney but is not suitable for
using for the complete chimney. The chimney must have a minimum diameter of 150 mm and its
dimension should be not less than the size of the outlet spigot of the stove.
Any bend in the chimney or connecting fluepipe should not exceed 45°. 90° bends are not permitted.
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 the stove installation instructions.
If it is found that there is excessive draught in the chimney then a draught stabiliser should be fitted.
All joints in the connection between the stove and the chimney must be made gastight using the rope gasket
provided and if required a suitable sealant.
The chimney can be swept through the stove if the stove is connected via the top flue outlet. When
installing via the rear flue outlet adequate provision e.g. easily accessible soot door or doors must be
provided for sweeping the chimney and connecting fluepipe. It may also be necessary to provide
additional sweeping access when fluing through a register plate.
Hearth
The hearth should be able to accommodate the weight of the stove and its chimney if the chimney is
not independently supported. The weight of the stove is indicated in the brochure.
The stove should always be installed on a non-combustible hearth of a size and construction that is in
accordance with the provisions of the current Building Regulations Approved Document J.
The clearance distances to combustible material beneath, surrounding or upon the hearth and walls
adjacent to the hearth should comply with the guidance on the separation of combustible material
given in Building Regulations Approved Document J and also in the stove instructions.
If the stove is to be installed on a wooden floor, it must be covered with a non-combustible material at
least 12mm thick, in accordance with Building Regulations Approved Document J, to a distance of 30
Stove Performance
Prefactory Work and Safety Checks
4 5

cm in front of the stove and 15 cm to each side measuring from the door of the combustion chamber.
Combustion air supply
In order for the stove to perform efficiently and safely there should be an adequate air supply into the
room in which the stove is installed to provide combustion air.
The provision of air supply to the stove must be in accordance with current Building Regulations
Approved Document J. An opening window is not appropriate for this purpose.
Commissioning and handover
Ensure loose parts are fitted in accordance with the stove instruction booklet.
On completion of the installation allow a suitable period of time for any fire cement and mortar to dry
out, when a small fire may be lit and checked to ensure the smoke and fumes are taken from the stove
up the chimney and emitted safely to atmosphere. Do not run at full output for at least 24 hours.
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
with the fuels likely to be used on the stove and warn them to use only the recommended fuels 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 in the presence of children, aged and/or infirm persons.
Supplementary Operating Instructions for use with
Morsø UK stoves
PLEASE READ THE INSTRUCTION MANUAL AND THESE SUPPLEMENTARY INSTRUCTIONS CAREFULLY
BEFORE USING THE STOVE.
Warning Note
Properly installed, operated and maintained this stove 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, then the following immediate
action should be taken:
(a) Open doors and windows to ventilate room.
(b) Let the fire go out or eject and safely dispose of fuel from the appliance.
(c) Check for flue or chimney blockage and clean if required.
(d) Do not attempt to relight the fire until the cause of the fume emission has been identi fied
and corrected. If necessary seek expert advice.
The most common cause of fume emission is flueway or chimney blockage. For your own safety these
must be kept clean at all times.
Important Notes
General
Before lighting the stove check with the installer that the installation work and commissioning checks
described in the installation instructions have been carried out correctly and that the chimney has been
swept clean, is sound and free from any obstructions. As part of the stoves’ commissioning and
handover the installer should have shown you how to operate the stove correctly.
CO Alarm
Your installer should have fitted a CO alarm in the same room as the appliance.
If the alarm sounds unexpectedly, follow the instructions given under “Warning Note” above.
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 BS8423:2002.
Chimney cleaning
The chimney should be swept at least once a year for smokeless fuels and a minimum of twice a year for
wood and other fuels. It is important that the flue connection, any appliance baffles or throat plates and
the 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 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.
In situations where it is not possible to sweep through the stove the installer will have provided
alternative means, such as a soot door. After sweeping the chimney the stove flue outlet and the flue
pipe connecting the stove to the chimney must be cleaned with a flue brush.
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.
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.
Aerosol sprays
Do not use an aerosol spray on or near the stove when it is alight.
Use of operating tool, handle and mitten.
Always use the correct door handle, operating tool and mitt provided when handling parts likely to be
hot when the stove is in use.
Chimney Fires
If the chimney is thoroughly and regularly swept, chimney fires should not occur. However, if a chimney
fire does occur immediately contact the fire brigade; turn the air control setting to the minimum if it is
safe to do so. This should cause the chimney fire to go out in which case the control should be kept at
the minimum setting until the fire in the stove has gone out.
After a chimney fire the chimney should be carefully examined for any damage. Expert advice should
be sought if necessary.
6 7

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.
HETAS Ltd Approval
The appliances covered by this manual have obtained HETAS Ltd approval for burning wood logs only.
Please note that HETAS Approval only covers the use of wood on the stove and approval does not cover
the use of other fuels either alone or mixed with wood, nor does it cover instructions for the use of
other fuels.
USER OPERATING INSTRUCTIONS - WOOD
For pure wood burning stoves and multi fuel stoves operating with wood, please refer to the main installation
and operating manual.
User Operating Instructions - Solid Smokeless Fuels (If appropriate*)
Model N°
Fuel
Model N°
Fuel
Model N°
Fuel
8140
Wood only
S11-40
Multi-fuel
S81-90
Multi-fuel
8141
Wood only
S11-42
Multi-fuel
Ø4
Multi-fuel
8142
Wood only
S11-43
Multi-fuel
Ø6
Multi-fuel
8147
Wood only
S11-90
Multi-fuel
Ø8
Multi-fuel
S10-40
Wood only
S50-40
Wood only
S10-70
Wood only
S80-90
Wood only
Recommended fuels
The following natural or manufactured smokeless fuels may be burnt on this stove:
Ancit,
Taybrite
Anthracite Small Nuts,
Pureheat
Coalite
Maxibrite
Phurnacite,
Newflame
Sunbrite Doubles,
Fireglo ovoids
Supacite
Only authorised smokeless fuels may be used in smoke control areas.
PETROLEUM COKE AND BITUMINOUS HOUSE COAL ARE NOT SUITABLE FOR USE ON
THIS STOVE, ITS USE WILL INVALIDATE THE WARRANTY
At first you may find it helpful to try several fuels to find the most suitable. If you are unable to obtain
the fuel you want ask your fuel distributor to suggest an alternative.
Further details of recommended fuels can be obtained from the HETAS Ltd “Official guide to approved
solid fuel products and services” which is available on their website at www.hetas. co.uk. Guidance can
also be obtained from the Solid Fuel Association at 7 Swanwick Court, Alfreton, Derbyshire, DE55 7AS
(Tel: [phone] or www.solidfuel.co.uk).
Lighting of fire
A lot of air is needed when first lighting the stove. When starting with a totally cold stove, it may be
helpful to leave the door ajar (2-3cm) during the first few minutes; the primary air intake should be
fully open. Under poor draft conditions, adding secondary air will help the lighting process.
Place some firelighters or paper and dry kindling wood on the grate and cover with a small amount of
fuel; ignite the firelighters or paper. Allow fire to establish for a few minutes and then close the door,
continue to burn the stove with both primary and secondary air controls open until the fuel is well
alight. Load the stove with more fuel and adjust air controls to the required level of heat output.
Before relighting the fire clean the fire bed of ash and clinker and empty the ashpan.
8 9
Model N°
Fuel
Model N°
Fuel
Model
N°
Fuel
1410
Multi-fuel
3142*
Multi-fuel
7443
Wood only
1412
Multi-fuel
3410*
Multi-fuel
7448
Wood only
1430
Multi-fuel
3440*
Multi-fuel
7470
Wood only
1440
Multi-fuel
3610
Wood only
7940
Wood only
1442
Multi-fuel
6140
Wood only
7943
Wood only
1630
Multi-fuel
6148
Wood only
7948
Wood only
2110
Multi-fuel
7110
Wood only
7970
Wood only
2140
Wood only
7440
Wood only
7990
Wood only
3112*
Multi-fuel
7442
Wood only

Controlling the burning rate
When operating the stove with solid fuels the combustion air supply should be predominantly controlled
by the primary air intake. The primary air on many of the stoves is controlled by an air spinner on the
ash door or on the bottom of the main door. In the case of the Morsø Owl 3410, 3440 and the Ø range
the primary air is controlled via a lever below the ash lip (please refer to main instructions)
Riddling and ash clearance
Riddling twice a day is usually sufficient. The fire should be riddled with all doors shut. Never allow ash
to accumulate in the ashpan such that it comes into contact with the underside of the grate as this will
cause it serious damage. The ashpan should be emptied regularly before it becomes too full. Use the
tool provided to remove the ashpan.
Care should be taken to ensure that any hot ash is cool before emptying it into plastic liners or bins.
Refuelling
Keep the firebox well filled, the fuel may be sloped up from the front fire bars toward the back of the
stove but do not allow fuel to spill over the top of the front fire bars or restrict any tertiary air inlets.
Take care that fuel does not project over the front fire bars or damage to the glass may be caused.
Empty the ashpan, if required, and then riddle the fire. If the fire is very low then it may be necessary to
add a small amount of fuel and adjust the air control to maximum for a brief period until the fire is
burning well before fully re-fuelling the stove. After refuelling continue to operate the stove at full rate
for a short time before reducing the air controls for overnight burning.
Reduced or overnight burning
Some experimentation may be necessary to find the air control setting most suitable for the particular
fuel used and the draw on the chimney and the level of heat output required, but generally the air
control should be turned down to the minimum setting for overnight burning. Please note some sooty
deposits or discolouration to the glass may occur when the stove is slumbered overnight. This should
clear once the fire is restored to a good operating temperature. It may also be necessary to periodically
clean the glass; Morsø glass cleaner is available from your dealer.
To revive the fire, empty the ashpan if necessary, riddle, and turn the air control setting to maximum.
When the fire is burning well load on more fuel as necessary and turn the air control setting to the
desired setting.
Flueway cleaning
It is important that the baffle plate and all the stove flueways are kept clean. When burning smokeless fuels
they should be inspected and cleaned at least once a month.
More soot will be deposited on the baffle plate and in the flueways if the stove is run at low levels for long
periods. If this is the case then more frequent cleaning will be necessary.
Cleaning and Maintenance
Please see “Routine Stove Maintenance” contained in the main instruction manual.
Trouble shooting, tips & hints
1. Glass discolouration
Check that:
•If wood burning, the moisture content is not too high.
•If wood burning, the logs are not oversized (logs greater
than 100mm diameter should be split).
•If wood burning, the combustion air is supplied via
the secondary air control.
•If burning solid fuel, an approved fuel is being used.
2. Glass cracking
Check that:
•A quality approved fuel is being used without
impurities. Impurities sometimescalled “stones” can
explode inside the firebox and damage the glass.
•If the glass has recently been replaced, ensure it
is authorisedMorsø glass. Morsø use
only 5mm thick glass, it is false economy to use inferior 3 or 4mm replacement glass.
•If the glass cracked when the stove was not
being used: there are likely to be signs of
corrosion on the door frame behind the glass. When the stove
is out of use for prolonged periods it is important to remove any ashes and vent the
stove. Differences in room, flue, and stove body temperature can result in condensation inside
the stove; if this moisture comes into contact with any ashes or gaskets it may result in corrosion
and acid corrosion from the ashes. Rust behind the glass will push the glass away from the door
frame plac- ing pressure on the glass at the fixing points; the resulting crack usually runs from
clip to clip.
3. 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.
4. Fire Will Not Burn
Check that:
•If wood burning, the moisture content is not too high.
•If wood burning, the logs are not oversized (logs greater
than 100mm diameter should be split).
•The correct air control is being used for the
fuel being burnt, i.e. Primary air for solid fuel
and secondary air for wood burning.
•The air inlet is not obstructedin any way.
•That the chimneys and flueways are clear.
•That there is an adequate air supply into the
room.
10 11

•That an extractor fan is not fitted in the
same room as the fire.
12
5. Fire Blazing Out Of Control
Check that:
•The door or doors are correctly closed.
•The door seals are in good condition.
•The main body gaskets are in good condition. With the
stove running trace along the joints
of the stove with a burning incense stick; if the smoke trail is drawn into the stove at any
point it would indicate a defective seal.
Important note: All Morsø stoves use the same ceramic rope gasket for doors and main body castings.
The use of unauthorised non Morsø gaskets during routine maintenance commonly results in:
•Pressure on the casting and fixing point which can
lead to cracking.
•Inability to fit components due to insufficient
compression of the gasket.
•Inability to close the door or excessive force
required to close the door resulting in dam -
age to both the door casting and the glass.
The following kits are available from your authorised Morsø dealer:
•Sealing rope 2mtr x Ø8mm (doors & body parts)
62903100
•Sealing kit for doors and bogy parts with
adhesive 62904300
•Self adhesive ladder gasket for glass 2mtr x 8mm
62903800
•Glass kit 1410 inc gasket, clips & screws
62904000
•Glass kit 1440 inc gasket, clips & screws
62904100
•Glass kit 1430 inc gasket, clips & screws
62904200
13
14 15

Morsø Jernstøberi A/S - 29.10. 2014 –72002900

Instructions for installation and use 7300-
7400
Designed by Monica Ritterband
Morsø 7340, 7343, 7348, 7350, 7351, 7370, 7390
Morsø 7440, 7443, 7448, 7450, 7470, 7490

Morsø 7343
EN 13240 · NS 3058-3059
MORSØ JERNSTØBERI A/S . DK-7900 NYKØBING MORS
www.morsoe.comE-Mail: [e-mail] · Website: www.morsoe.com

Enjoy your new Morsø stove!
Morsø, the biggest stove company in the Danish market,
has been making wood-burning stoves of the highest
quality since 1853. Just follow the instructions below,
and we are certain that you will be able to use and enjoy
your new stove for many years to come.
1.0
Installing your Morsø stove
3
1.1 Unpacking the stove
3
1.2 Installing the stove
3
1.3 Chimney sweep
3
1.4 Location of the stove/distance requirements
3
1.5 The chimney
4
1.6 Pipe connections
5
1.7 Connecting to a brick chimney
6
1.8 Connecting to a steel chimney
6
1.9 Draught
8
2.0
Firing/using the stove
9
2.1 Lighting instructions and fuelling intervals
10
3.0
Routine stove maintenance
14
3.1 External maintenance
14
3.2 Internal maintenance
14
3.3 Cleaning the stove
15
Additional accessories
We offer a comprehensive line of chimney, floor plate and accessory products that can facilitate the
daily operation and maintenance of your Morsø stove.
Likewise, for this stove we have developed a range of accessories designed by Monica Ritterband.
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.
Morsø 7300 og Morsø 7400
Morsø 7400 series has sidewindows. Morsø 7300 series has cast iron side plates.
1.0 Installing your Morsø stove
1.1 Unpacking the stove
The cast-iron basic stove is supplied ready for fitting the selected pedestal and upper section. The Morsø
7300-7400 series weighs between 108 and 122 kg. To avoid damage during unpacking and assembling
the stove, we recommend that two people carry out this work.
Remove the cardboard packaging, then lift the cast-iron top plate which is lying loose off the stove
before lifting the stove off the wooden pallet. While fitting the selected pedestal, which is supplied
separately, lie the stove on its back, if possible with the cardboard packaging as a protective layer. Once
assembled, lift the stove up and place it carefully where it is to be permanently located, so that the pipes
can be installed. If the stove is to stand on flammable material, place it centrally on a base plate made
of steel, glass or other non-flammable material. Before lighting for the first time, check that all the
internal parts have been positioned correctly. The packaging can be disposed of according to the
applicable waste disposal regulations.
1.2 Installing the stove
National and local regulations regarding the installation of wood-burning stoves must be observed, as
must local regulations regarding chimney connections and chimney installation. You may want to ask
your chimney sweep for advice. However, it is you, your technical adviser or workman, who is
responsible for compliance with the applicable national and local regulations.
1.3 Chimney sweep
As stated, it may be wise to consult your local chimney sweep before installing the stove. In any event,
the chimney sweep must be notified once the wood-burning stove has been installed. The chimney
sweep will inspect the installation, and reach an agreement with you regarding sweeping intervals. If
your chimney has not been used for some time, it should be inspected for cracks, bird nests, etc., before
it is used.
1.4 Location of the stove/distance requirements
Distance requirements apply only if the stove is placed near flammable materials. Your new stove can
be positioned as specified on the authorisation sign on the back of the stove if the walls are made of
flammable material.
23

Minimum distance to combustible material:
Morsø 7300 series
Installation
Stove type
Distance A
Distance B
Distance C
Distance front
of stove
Normal
Parallel
Morsø 7300 un-
insulated pipe
200 mm.
400 mm.
-
850 mm
Normal
Parallel
Morsø 7300
insulated pipe
100 mm.
400 mm.
-
Corner
Morsø 7300 un-
insulated pipe
-
-
350 mm.
Morsø 7400 series
Installation
Stove type
Distance A
Distance B
Distance C
Distance front
of stove
Normal
Parallel
Morsø 7400 un-
insulated pipe
200 mm.
450 mm.
-
850 mm
Normal
Parallel
Morsø 7400
insulated pipe
100 mm.
450mm.
-
Corner
Morsø 7400 un-
insulated pipe
-
-
350 mm.
We recommend that the stove be installed at least 10 - 15 cm from masonry, in order to allow heat to
circulate and to facilitate the cleaning of the inside and outside of the stove. A layer of wallpaper on a
brick wall is normally viewed as non-flammable material.
The floor
If the stove is installed on a flammable floor, national and local regulations must be observed with
regard to the size of the non-flammable underlying surface that must cover the floor beneath the stove.
The underlying surface must naturally be able to bear the weight of the stove and, if applicable, the
steel chimney.
Distance to furniture
The minimum clearance to combustible materials in front of the stove is 850 mm. The minimum
distance to combustible materials must be observed; furthermore, it should be considered whether
furniture and other items will dry out if placed near the stove.
A wood-burning stove gets hot when it is fired. Caution must therefore be observed, particularly with
regard to children touching the stove.
1.5 The chimney
If local regulations permit, the stove may be connected to a chimney already serving another fireplace
(such as an oil-burning stove or another wood-burning stove). Attention should be paid to any
requirements concerning the location of flue pipes if two or more fireplaces are connected to the same
chimney.
The wood-burning stove must never be connected to a chimney to which a gas-burning stove 4 is already
connected.
An efficient, modern stove places great demands on the chimney, so you should get the chimney sweep to
evaluate chimney.
The aperture of the chimney must comply with national and local regulations. In general, the aperture
area should measure at least 175 cm2 (150 mm diameter) for wood-burning stoves. An overly large
chimney aperture will mean that too much energy will be required to heat the chimney sufficiently to
achieve an acceptable draught in the chimney. If you have a brick chimney with a large aperture, we
recommend that you install an insulating chimney liner of the proper diameter. This will increase the
draught, and improve the fuel economy.
There are no requirements with respect to specific chimney heights, but a chimney must be tall enough
to provide a good draught, and to ensure that the smoke does not cause any problems. As a general
rule, there will be a satisfactory draught if the chimney extends 4 metres above the stove and at least
80 cm above the spine of the roof.
If the chimney is located along the side of the house, the top of the chimney should never be lower than
the spine of the roof or the highest point on the roof. Please note that there are often national and local
regulations concerning the location of chimneys in houses with thatched roofs. Please see section 1.9
on Draught.
The chimney and the flue pipe must be fitted with cleaning doors, which must be at least the same size as
the chimney’s aperture area.
The chimney must be accessible for external inspection, and it must be possible to access the cleaning doors
and the chimney if it is to be cleaned from the top (e.g. steel chimneys).
1.6 Connecting the flue pipe
Lift the upper cast iron top plate off the stove.
Note: the round cast iron cover plate in the top plate must remain mounted if the stove is being installed
with the flue pipe to the rear, but unscrewed from the upper top plate if the flue pipe is being installed
pointing upwards.

Mounting the flue collar pointing upwards
From the factory, the stove is prepared for installation with the included flue collar pointing upwards with
included screws.
Mounting the flue collar to the rear
With a hammer use light, firm taps to knock out the iron piece on the convection back panel from the small
“bridges” holding the piece in place.
The cover plate for the smoke outlet is unscrewed from the back panel and the fixed onto the top panel.
Mount the flue collar onto the back panel
Lift the top panel back into place and the round section which is provided can be placed in the top panel and
cover for the blocked off smoke outlet.
The location of the baffle and cast smoke hood
The rear brick and the baffle, which are made from vermiculite, are mounted at the factory. Make sure
that the baffle and rear brick stone are correctly assembled before lighting the stove.
5
1.7 Connecting to a brick chimney
Brick a flue bushing securely into the wall, and insert the flue pipe into it. The pipe must not extend into
the actual chimney opening, but only to the inside of the chimney aperture. The joints between the
stove/pipe and pipe/wall bushing must be sealed with the glass tape provided. It is not normally
necessary to seal between any pipe joints.
If the flue pipe transitions from horizontal to vertical, it is a good idea to install it with a gentle bend so
as to avoid any loss of draught.
The flue pipe must be dimensioned in accordance with national and local regulations. Morsø
recommends, however, that flue pipes be made of 2 mm sheet steel, as this will extend the service life.
1.8 Connecting to a steel chimney
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.
If a chimney fire should occur as a result of incorrect operation of the stove or prolonged use of wet
fuel, close the vents completely and contact the fire brigade.
Installation of wall-mounted Morsø 7370/7470
The wall-mounting frame has holes for mounting expansion bolts into the wall.
The bolts must be adequately sized and you must ensure that the wall is capable of supporting the
stove. The weight of the empty stove is 108 kg )
It is therefore the responsibility of the installation contractor/customer to make sure that the
wall/chimney can support the stove securely. We point out that element block chimneys and semi-
brick chimneys without a lining do not always have the necessary carrying capacity. If in doubt, you
should contact a professional craftsman. The wall mounting frame may be used as a template for
drilling.
Note: Plastic rawlplugs must not used due to the heat produced by the stove.
Minimum distance to combustible floor is 250 mm.
Mount the wall-mounting fixture on the wall. If the flue exit is wanted to the rear, build a wall bushing
correctly into the wall.
Lift the wood stove in place so that it rests on the bottom part of the wall-mounting fixture, and secure
it again to the fixture by means of the screws included.
Be aware of the following:
Discuss the cleaning options with your chimney sweep.

If there is insufficient draught in the chimney, it may be a good idea to install the flue pipe
straight up, so as to minimise smoke migration in the actual combustion chamber.
Avoid having any more bends than necessary, and limit the length of the flue pipe so as not to
reduce the draught. Fresh air supply
A wood-burning stove requires air for combustion. As a result, firing a wood-burning stove will help
to create a healthy climate in your house. If the house is very tightly sealed, and particularly if there
is a cooker hood or ventilation system in the house, it may be necessary to install an air grate in
the room in which the woodburning stove is installed. Otherwise there may not be enough draught
in the chimney, which may result in the stove not being able to burn properly, and smoke may
come out of the stove when the fire door is opened.
If it is necessary to install air grates, they must be positioned so that they cannot be obstructed.
1.9 Draught
If smoke comes out of the stove when the fire door is opened, it will be due to the poor draught in the
chimney. This type of stove requires at least 12 pa. of chimney draught to achieve satisfactory
combustion, and to prevent smoke from escaping. Smoke may, however, escape in any event, if the
stove door is opened during very vigorous burning, so this should be avoided. The flue gas temperature
at the rated output is 184°C relative to 20°C.
If in doubt, you may want to get your chimney sweep to measure the draught in the chimney.
Draught
The draught in the chimney is the result of the difference between the high temperature in
the chimney and the cooler temperature outside. Other factors that determine whether
enough negative pressure can be produced to create a draught include the length and
insulation of the chimney, and wind and weather conditions. The draught will be
reduced when:
-The temperature difference is too low, e.g. in connection with a poorly insulated chimney.
If the chimney is cold, it may help to light (burn up) a rolled-up newspaper in the
chimney’s cleaning door.
-The outside temperature is too high, for example during the summer.
-There is no wind.
-The chimney is not tall enough, with the result that it sits in the lee of the roof surface or
tall trees. These conditions are also associated with the greatest risk of smoke coming back
down the chimney.
-Air is entering the chimney in undesired places, e.g. through cracked joints or leaks in the
cleaning door or the flue pipe.
-Unsealed, unused fireplaces are connected to the chimney.
-The flue pipe and chimney are clogged up with soot, due to inadequate cleaning. - The
house is too tightly sealed (please see the section on Fresh air supply).
-Too little air is getting in.
A good draught is achieved when:
-There is a big difference between the temperature in the chimney and outside during
firing, i.e. when the need for heating is greatest.
-The weather is clear and there is a good wind.
-The chimney is of the proper height, i.e. at least 4 metres above the stove, and clear of the
spine of the roof.
6 7

2.0 Firing/using the stove
Your stove is constructed with air inlets in three places.
Pre-heated, fast-moving combustion air is added to the fire beneath the grate. and is regulated using
the handle beneath the door. The combustion air is let in when the handle is pushed to the left, and
shut off when the handle is pushed to the middle position. This kind of combustion air is only to be used
during start-up and only when conditions are bad. Bad conditions could be insufficient flue draft or wood
with high humidity.
Pre-heated, fast-moving combustion air is added to the fire above the glass window, and is regulated
using the handle beneath the door. The combustion air is let in when the handle is pushed to the right,
and shut off when the handle is pushed to the middle position.
Another air inlet provides a constant, pre-heated air supply which cannot be adjusted, and which comes
into the combustion chamber just above the fire. This helps to burn off the last few gasses emitted by
the wood whilst it is being heated up.
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 kg/hour (max. 2 pieces of wood each time you re-stoke).
The first few times you light the stove, the fire should be moderate, so that the heat-resistant
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.
When heating up or cooling down, the material is exposed to major temperature differences that
may cause the stove to give off creaking sounds.
The
stove’s rated heat output is 4.3 kW. Your new Morsø stove is EN-tested for firing with wood, and is
suitable for intermittent use.
2.1 Lighting and fuelling intervals
A lot of air is needed when lighting the stove. If you are starting with a cold
stove, the door should be left ajar for the first few minutes, and the
combustion air supply opened to maximum. Always keep a couple of
centimetres of ash in the bottom of the combustion chamber. This will have
an insulating effect, and ensures good combustion.
1. A layer of embers will form rapidly if the stove is lit with 2 fuel tablets or
7 - 10 rolled up sheets of newspaper underneath 2 kg of dry kindling.
2. Open the air supply as much as possible. This is
done using the handle beneath the door. The
handle is pushed fully to the right.
3. After the paper/solid alcohol tablets have caught fire, leave the fire door
ajar, so that the chimney draws well.
4. When you can see that the chimney is hot enough to draw (after 5 - 10
minutes), close the door. If all the necessary conditions are met, a thick
layer of embers will have been formed in the combustion chamber after
another 15 - 20 minutes, and there will be a high temperature in the
combustion chamber, which is necessary in order to be able to continue
the combustion.
8 9

5. If the condition in step 4 is met, place max. 2 pieces of wood with a
total weight of 1-1.5 kg and a length of 2025 cm over the embers in
a single layer, with a distance of approximately 1 cm.
6. Open the air supply to maximum, and close the door. The
fresh wood will be lit within 1-3 minutes.
If it does not light, open the door slightly to allow in enough air to ignite
the wood.
Close the door again once the wood has caught.
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.
7. Reduce the amount of combustion air to the desired position, and the
optimal combustion will continue. Make sure that there is always
enough air (oxygen) to maintain clear, lasting flames when, and after,
reducing the amount of combustion air.
Make sure that there is always enough air (oxygen) to maintain clear,
lasting flames when, and after, reducing the amount of combustion air.
The stoking interval is between 45-75 minutes.
8. Once the fire has been reduced to a thick layer of embers, a new portion
of wood can be added by repeating steps 5 & 7.
The stove door must 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.
Precaution with the use of Morso 7300/7400 in
Smoke Control Areas
The 7300/7400 has been recommended as suitable for use in smoke control areas when
burning wood logs with less than 20% moisture.
•Refuelling on to a low fire bed
If there is insufficient burning material in the firebed to light a new fuel charge, excessive
smoke emission can occur. Refuelling must be carried out onto a sufficient quantity of
glowing embers and ash that the new fuel charge will ignite in a reasonable period. If there
are too few embers in the fire bed, add suitable kindling to prevent excessive smoke.
•Fuel overloading
The maximum amount of fuel specified in this manual should not be exceeded, overloading
can cause excess smoke.
•Operation with door left open
Operation with the door open can cause excess smoke. The appliance must not be operated
with the appliance door left open except as directed in the instructions.
•Dampers left open
Operation with the air controls or appliance dampers open can cause excess smoke. The
appliance must not be operated with air controls, appliance dampers or door left open
except as directed in the instructions.
12
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.
10 11

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 firing with wood and oil
Type of wood (moisture content 20%)
No. of cubic metres per 1000 l oil
Oak
7.0
Beech
7.0
Ash
7.2
Sycamore
7.5
Birch
8.0
Elm
8.9
Common spruce
10.4
Silver fir
10.9
3.0 Routine stove maintenance
3.1 External maintenance
The cast surface of the stove is painted with heat-resistant Senotherm paint. It is best maintained by
simply vacuuming it with a soft brush attachment or wiping it down with a dry, dustfree cloth.
If the stove is used too vigorously, the painted surface may assume a greyish tinge over time, but the
stove can easily be freshened up with Morsø spray paint, which is available from your local retailer.
Morsø stoves are painted using a Morsø Original Black (previously called Morsø dark grey) or Morsø
grey. The paint can be bought in a spray or a can.
3.2 Internal maintenance
Glass window
If the stove is used correctly, very little or no soot will be deposited on the ceramic glass window. If
soot does form on the glass as the stove is being lit, it will burn away once normal combustion begins
in the stove. If the glass window becomes thoroughly covered in soot due to incorrect operation, the
soot can be easily removed using Morsø Glass Cleaner. The glass must be cold when you clean it. Avoid
stoking the stove with pieces of wood that are so long that they press against the glass window when
the door is closed.
Only use Morsø Glass Cleaner.
Reasons for sooty glass window:
-The fuel is too wet
-The pieces of fuel are too big/uncut wood
-The combustion temperature is too low
-There is not enough air
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 wearing parts
The baffles and other components that come in direct contact with the fire and glowing fuel are all
wearing parts. As a result, they will be particularly susceptible to burn-through. When used correctly,
these parts will last for many years, but overly vigorous use will naturally accelerate the burn-through.
Such parts are all easily replaced.
If the baffles are damaged and are not replaced in time, the top plate will be exposed to such high
temperatures that it may be damaged as well.
Please note that no unauthorised alterations of the design may be undertaken, and that any parts
that are replaced must be replaced with original Morsø parts.
Reasons for overly rapid wear of internal parts
-Stove fired too vigorously
Use of very dry wood (wood from old furniture)
-Too much soot on top of the baffles (please see the section on Cleaning)
-Too much ash in the ash pan (please see the section on Ash)
Gaskets
The gaskets in the door will wear out over time, and should be replaced as required in order to prevent
runaway combustion. Use the original Morsø gasket kit.
NOTE: Normal wearing parts are not covered by Morsø’s extended warranty.
A selection of maintenance products (spare parts, glass cleaner, paint, gasket kit, etc.) is available from your
Morsø dealer.
3.3 Cleaning the stove
A layer of ash and soot will form as a result of the draught in the chimney and after sweeping, particularly
on the top of the smoke hood. This ash will have an insulating effect, which may speed up the burn-
through of the baffle.
During normal cleaning, the baffle can be removed from the stove. Once this part has been taken out,
you can access the flue chamber above the baffle and clean it. Clean the baffle before reassembling
them, and make sure that it is correctly assembled. Nowadays the chimney sweep must remove the
soot in the stove, in addition to sweeping the chimney and cleaning the flue pipe.
The number of annual sweepings/cleanings of the stove should be determined in consultation with your
chimney sweep.
Ash
As noted above, there should be a couple of centimetres of linsulating ash in the bottom of the
combustion chamber in order to achieve a high combustion temperature. If the layer of ash is too thick,
it can be brushed down into the ash pan.
Empty the ash pan before it gets completely full, so that the ash does not insulate around the grate, and
thereby speed up the burn-through.

In most cases, the ash will need to be taken away by the waste disposal company. Because embers may
be concealed in the ash pan for several days, it may be necessary to store the ash in a container made
of non-flammable material before pouring it into a rubbish bag.
14 15

Spare parts for the 7300/7400 series
Description
Product no.
Cast grate 7300/7400
34745600
Vermiculite baffle 7300
79748000
Vermiculite baffle 7400
79743500
Glass window, front 7300/7400
79743400
Glass window, outer side 7400
79742700
Glass window, inner side 7400
79742000
Rear vermiculite brick 7400
79742200
Rear vermiculite brick 7300
79747900
Vermiculite side, right 7300
79748200
Vermiculite side, left 7300
79748100
MORSØ JERNSTØBERI A/S . DK-7900 NYKØBING MORS
E-Mail: stov[email protected]m · Website: www.morsoe.com