Installation & operating instructions for USA & Canada

7600

Read the entire manual
before installing and using
your Morsø stove[1]

Welcome to Morsø …….
Thank you and congratulations on the purchase of your new Morsø heater.
Morsø has been at the forefront of cast iron wood heater design since 1853. Each and every heater ishand built by skilled crafts-people using the best materials available. However, to extract the best performance, warmth and comfort from your heater it is essential all the installation requirements detailed
within this manual are met. Please take the time to read this manual cover to cover before installation.
Optional Accessories
Morsø offers a comprehensive selection of accessory products (fire tools, fuel buckets) that extends
Form & Function to the hearth. A wide range of maintenance products is also available to keep your new
Morsø heater in tip-top condition.
For optimum use of your Morsø heater we highly recommend using the Morsø Wood Moisture Meter toensure good fuel quality as well as the Morsø Stove Thermometer that indicates the correct operating
temperature.

Technical Specifications
Maximum Heat			
35,000 BTU/hr
Heat output range (Lab test)		
10,875-21,267 BTU/hr
Test fuel load			
6 lbs
Particulate Emission		
4.4 grm/hr
Log size				11”
Max. Area Heated			
1200 ft2
Firebox Dimensions		
13” W x 10½” D
Firebox volume/capacity		
0.85 ft3
Efficiency rating (as measured by LHV)75%+
IRS Tax Credit (under American Recovery andReinvestment Act of 2009)		
Eligible
Outside air supply			Available
Mobile home approved		
Yes
Washington State			Compliant
Basic Clearance (using single wall pipe top vent)
Stove to side wall			
15”
Stove to rear wall			
1”
Stove to corner			2½”
See installation manual for other configurations[2]

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Features
Danish Design and Function
Finest Cast Iron construction
Chrome iron internal castings
Pre-heated clean-glass system
Non-catalytic combustion system
Convection Heater
Reversible flue collar
Vermiculite lining
Ashpan10-Year Limited Warranty
Low smoke emissions
Made from 98% recycled iron
Recycled packaging
EPA Approved

Morsø 7600-series was designed by Monica Ritterband, currently one of Denmark’s
most sought-after designers. Monica Ritterband is known for her pioneering designs,
which all take their starting point in her unique universes and totally special, organic
language of form and lines. Thus, the Morsø 7600 was also created in this way – it iscompletely unique with its circular form, round feminine transitions and its huge glass
window, the biggest in Morsø’s history of stoves.

Morsø 7642

Morsø 7644

Morsø 7648

[3]

Table of Contents• Technical Specifications

2

Safety Notices & Standards	

5• Safety Notice5• Standards

5• Safety Notices

6

Installation	

7• Preparation

7• The chimney / flue system

7• Clearances to combustible surfaces

13• Floor Protection

15• Mobile Home Installation

16

Operation	

18• Choosing your fuel18

• How to light your stove20

Maintenance23• Ceramic glass replacement• Internal Parts

24
25-- Removing the baffle assembly

25-- Door Rope Gasket

25-- Cleaning the Heater and the Chimney Connector

25-- Ash disposal

25• Chimney sweeping & inspection

26

Words of wisdom	

27

Spare Parts	

28

[4]

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Safety Notices & Standards
Safety Notice

Please read the entire installation and operation manual before you install and use your new solid fuelheater. If this appliance is not properly installed, a house fire may result. To reduce the risk of fire, carefully follow the installation instructions. Failure to follow instructions may result in property damage,bodily injury, or even death.
Contact local building or fire officials about restrictions and installation inspection requirements
in your area. Save these instructions for future reference.
MORSØ JERNSTØBERI A/S . DK-7900 NYKØBING MORS, Denmark
E-Mail: heaters@morsoe.com • Website: www.morsoe.com
Distributed by: Morso US LLC - 1011 Highway 52 West - Portland TN 37148 - USA Website: www.morsona.com
Tested and listed by OMNI-Test Laboratories, Inc, Portland Oregon.
Tested to U.S. Standards ANSI/UL-1482 and Canadian Standards ULC S627
The heater is listed for burning wood only. Do not burn other fuels.

Standards

The Morsø 7600-series meets the U.S. Environmental Protection Agency’s emission limits for woodheaters sold on or after July 1, 1990 (EPA Phase 2)
The Morsø 5660 Standard Insert has been tested by OMNI-Test Laboratories, Inc. The test standards
are ANSI/UL-1482 for the United States and ULC S627 for Canada.
The heater is listed for burning wood only. Do not burn other fuels
Under specific test conditions this heater has been shown to delivery heat at rates ranging from 10,875
to 21,267 Btu/hr.
Always check Local Building Codes
When installing or operating your Morsø heater always follows the instructions detailed within thismanual. Please store in a safe place and make them available to any person who requires it for future
inspection or servicing.
A building permit may be needed to install a solid fuel heater in your locality. In the US, Standard
NFPA211 may apply, in Canada CAN/CSA-B365-M93 may apply. For clarification consult your local
building inspector.

[5]Safety Notices•

This room heater is approved for wood fuel only; Do not burn any other fuel or garbage.

•

If this wood heater is not installed properly, it may result in a house fire. To reduce the risk of fire 		follow the installation and operating instructions carefully. Failure to properly follow the installationand operation instructions may result in property damage, bodily injury or even death.

•

Never use chemical fire starters or fluid to start your fire.

•

Never burn garbage or flammable fluids.

•

Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter or fluid or similar liquids tostart or freshen up a fire in this heater. Keep all such liquids away from the heater while it is in use.

•

Where installation issues are not addressed in this manual, consult your local building or fire
officials and where necessary defer to standards NFPA 211 in the US, or CAN/CSA-B365-M93 in 		
Canada.

•Do not connect this wood heater to any air distribution duct or system and do not install into a 		chimney shared with another appliance.

•

During it’s operation your wood heater will get hot; Always make provision (fire guard) to adequately protect children, the infirm or inflammable materials from hot surfaces. These hot sur-		
faces will cause skin burns if touched.

•

Never allow your wood heater to overheat; Operate only within the guidelines set out in this manual.

•

Never operate this heater if any of the components (inc’ glass) are cracked or broken. Replace 		
broken or damaged component before use.

•

Always install smoke and carbon monoxide detectors in your home. Adhere to the recommended 		
positioning and maintenance instructions.

•

Cooktop hoods, clothes driers, and similar extraction units can have a detrimental effect on chim-		
ney draft; Avoid installing your wood heater in areas where there are present unless you are able 		to provide sufficient or additional outside air to the room.

•

Your heater should be properly sized to the immediate area you need to heat; An under-sizedheater may not deliver the required heat output without overheating and an oversized heat may 		
produce too much heat.

•

Always use approved chimney and chimney lining materials.

•

Your chimney should be inspected and swept by an approved chimney sweep at least once every 		
year, dependent upon usage.

[6]

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Installation
Preparation

We recommend installation be performed by an approved Morsø dealer or fully qualified installer. In any
event, Morsø heaters are very heavy and we recommend the installation be performed by two people.
Always consult your local building or fire officials to determine if any permits are required for installinga solid fuel heater in your area. You may also need to inform your Homeowners Insurance Company.
After unpacking, check that fire bricks or liners are firmly in position and have not shifted in transit.
Check also that the air control works freely.
Before starting the initial fire, make sure that the baffle is placed correctly.

The chimney / flue system

Note that the flue system must be independently secured and must not rely on the stove for support.
Use a residential type masonry or listed type HT factory-built chimney.
High Temperature (H.T.) Chimney Standard UL-103-1985 (2100º F.) or a code-approved masonrychimney with flue liner for the USA, and High Temperature (650ºC) Standard ULC S-629 for Canada.
The internal dimensions of the chimney connector and chimney must not be less than 6 inches diameter (or equivalent cross section), and should not be significantly larger than this. Too large a section willtend to allow the flue gases to cool excessively, causing sluggishness or unpredictability in the stove’s
performance.
We recommend the length of the chimney system should be at least 16 feet (not required) above thestove in normal domestic situations, measured from the flue collar to the top of the chimney.
Local conditions for example - roof constructions, large trees nearby and high altitude, may influence
the chimney draft. Therefore, contact your local professional chimney sweep or your Morsø dealer prior
to installation.

[7]

Typical Factory-Built or Masonry Chimney Installations

See page 10 for key[8]

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See page 10 for key[9]Installation Key
1

DVL or DuraBlack 11 Tee with Tee Cap 11 Tee with Tee Cap

2

Ceiling Support Box

12 Tee Support

3

Wall Thimble

13 Chase Top Flashing

4

Chimney Pipe

14 Base Tee/Double Tee

5Attic Insulation Shield

15 Anchor Plate or Anchor Plate with Damper

6

Flashing

16 Roof Support

7

Storm Collar

17 Finishing collar

8

Chimney Cap

18 DVL Adapter, DuraBlack Slip, Connector, or SnapLock Adapter

9

Elbow

19 Stove Adapter

10 Elbow Strap

20 Square Ceiling Support Box

Refer to our Typical Installation drawings to select the appropriate component parts for your installation.
•

DVL/DuraBlack Chimney Adapter must be used when connecting DVL pipe to a Ceiling Support
Box or Finishing Collar. When connecting DuraBlack pipe, a DVL/DuraBlack Chimney Adapter,
DuraBlack Slip Connector, or Snap-Lock Adapter must be used.

•

Wall Thimble must be installed with an appropriate length of chimney pipe for all horizontal
through-the-wall installations. To accommodate thicker walls, the telescoping pieces of the Wall
Thimble can be separated, and a field-fabricated extension may be installed.

•

Attic Insulation Shield must be used in all installations that pass through an attic, regardless ofwhether the attic is insulated or not.

•Firestop Radiation Shield must be used when a chimney passes through a floor or ceiling without
a support box.

Note: Chimney Installation Diagrams supplied by kind permission of Simpson Duravent (Duravent.com).
Components shown may differ from manufacturer to manufacturer.

[ 10 ]

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Typical Installation

Chimney Cap

Storm Collar
Flashing

Attic Insulation Shield
Firestop Radiation
ShieldAdjustable Wall Strap
Chimney Pipe

Ceiling Support Box
DVL or DuraBlack
Chimney Adapter
DVL or DuraBlack Pipe
Appliance adapter[ 11 ]

Flue Connection
The stove is supplied from the factory with round blanking plates blocking off the top and rear flue exits(behind the rear shield plate). A cast iron flue collar is placed inside the firebox during transit.
Use a 24 MSG black chimney connector or listed double wall chimney connector. Refer to local codes
and the chimney manufacturer’s instructions for precautions required for passing a chimney through a
combustible wall or ceiling. Remember to secure the chimney connector to the product using a minimum of three screws to each adjoining section.
The flue collar can be fitted to the rear outlet. Simply knock out the round panel on the rear plate toreveal the cast iron plate. Untwist the blanking plate and the flue collar and swap their positions. Resecure by pushing down and tighten the enclosed screws.
Position the stove and connect to the flue system.
Connection to the existing chimney - using single wall or double wall chimney connector.
A chimney connector is the double-wall or single-wall pipe that connects the stove to the chimney. The
chimney itself is the masonry or prefabricated structure that encloses the flue. Chimney connectors areused only to connect the stove to the chimney.
Double-wall connectors must be tested and listed for use with solid-fuel burning appliances. Singlewall connectors should be made of 24 gauge or heavier gauge steel. Do not use galvanized connector;
it cannot withstand the high-temperatures that smoke and exhaust gases can reach, and may release
toxic fumes when under high heat. The connector must be 6 inches (150mm) in diameter.
If possible, do not pass the chimney connector through a combustible wall or ceiling.
If passage through a combustible wall is unavoidable, refer to the sections on Wall
Pass- Throughs. Do not pass the connector through an attic, a closet or similar
concealed space when installing the chimney connectors.
It is important to keep the flue gases moving smoothly in the right direction. Do not vent into a large
void; rather form one continuous section all the way up. Use mild bends (e.g. 45º vs. 90º) rather than
sharp angles where a change of direction is required. All parts of the venting must be accessible forcleaning purposes.
In horizontal runs of chimney, maintain a distance no less than18 inches from the ceiling. Keep it asshort and direct as possible, with no more than two 90 degree turns. Slope horizontal runs of connector
upward 1/4 inch per foot (20 mm per metre) going from the stove toward the chimney. The recommended maximum length of a horizontal run is 3 feet (1 metre), and the total vertical length should be nolonger than 8 feet (2.5 metres).
Information on assembling and installing connectors is provided by the manufacturer’s instructions.
Be sure the installed stove and chimney connector are correctly distance from near by combustible
materials. See the clearance paragraph page 13.
Where passage through a wall or partition of combustible construction is desired, the installation shallconform to CAN/CSA-B365.

[ 12 ]

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Clearances to combustible surfaces
Distance to walls and lintel
When the stove is positioned near combustible materials, observe all current local and national building regulations with regards to clearances. Whatever regulations apply to your area, do not in any caseinstall the stove within 8 inches of combustible materials from the sides or 16 inches above the top of
the stove (fireplace installations require greater clearances above the stove - see below in the clearance
chart). These distances may need to be increased if the materials (precious furniture) are sensitive toheat. Note also that wallpaper and other decorative materials may become detached with the effects ofheat and care should be taken to ensure that they do not fall onto the stove in such an event.
When the stove is positioned near non-combustible materials, a gap of 4 inches or more is recommended for cleaning purposes and to ensure that heat circulates around the stove and out into the room.
Clearance Requrements
A. Sidewall to unit

Freestanding residential Installation top ventusing single wall connector
USA

Canada15”

381 mmB. Backwall to unit

1”

26 mm

C. Cornerwall to unit

2½”

64 mm
533 mm

D. Sidewall to connector

21”

E. Backwall to connector

7”

178 mmF. Cornerwall to connector

8½”

216 mm

G. Unit to ceiling

47”

1194 mm

Minimum clearances to combustibles:
Backwall

Adjacent wall

Sidewall

Adjacent wall
[ 13 ]

Clearance Requrements

Freestanding residential Installation top ventusing double wall connector

A. Sidewall to unit

USA

Canada15”

381 mmB. Backwall to unit

1”

26 mm

C. Cornerwall to unit

2½”

64 mm

D. Sidewall to connector

21”

533 mm

E. Backwall to connector

7”

178 mmF. Cornerwall to connector

8½”

216 mm

G. Unit to ceiling

47”

1194 mmalcove installation
using double wall connector

Clearance Requrements
USA

CanadaA. Sidewall to unit

15”

381 mmB. Backwall to unit

1”

26 mm

C. Cornerwall to unit--

D. Sidewall to connector

21”

533 mm

E. Backwall to connector

7”

178 mmF. Cornerwall to connector

-

-

33½”

851 mm

G. Unit to ceiling
W. Minimum alcove width--

D. Maximum alcove depth

32”

813 mm

G. Alcove ceiling above stove top

33½”

851 mmMAXIMUM ALCOVE DEPTH 32” (813 MM)[ 14 ]

SidewallSidewall

Backwallwww.morsona.com

Floor Protection
Floor protection requirements

NON -COMBUSTIBLE MATERIAL BENEATH STOVE
USA

CanadaA. Extending distance, back-8’’(200 mm)

B. Extending distance, right side

6”8’’(200 mm)

C. Extending distance, left side

6”8’’(200 mm)

D. Extending distance, front

16”18’’(450 mm)

US:
FLOOR PROTECTOR MUST BE
NON-COMBUSTIBLE MATERIALIT MUST EXTEND FRONT/SIDE/REAR AS INDICATEDCANADA:FLOOR PROTECTOR MUST BE
NON-COMBUSTIBLE MATERIALIT MUST EXTEND FRONT/SIDE/REAR AS
INDICATED[ 15 ]

Mobile Home Installation

The Morsø 7600 can be installed in a mobile home if equipped with an outside combustion air kit, aterminal cap with a spark arrestor, and if it meets the following installation requirements:•

The stove must be installed with a listed Type HT chimney connector, HT Chimney, and terminal cap with spark arrestor. Never use a single wall connector (stovepipe) in a mobile homeinstallation.

•

Floor protection requirements in section 1.5 must be followed precisely.

•

In Canada, this appliance must be connected to a 6” (152 mm) factory-built chimney conforming to CAN/ULC-629M, STANDARD FOR FACTORY BUILT CHIMNEYS. Floor protection as
referenced in section 1.5 must be followed, as well as use of Canadian Floor Protector.

•

Follow the chimney and chimney connector manufacturer’s instructions when installing theflue system for use in a mobile home.

•

Intake air piping can be installed through the floor into a vented crawl space or through thewall of the residence to obtain outside air.

•Install in accordance with 24 CFR, Part 3280 (HUD).

•NOTE: Top sections of chimney must be removable to allow maximum clearance of 13.5” fromground level for transportation purposes.

0658"
168 mmThe stove must be secured to the mobile home structure by bolting through the hearth pad andinto flooring.
7642 & 7644 are prepared for securing.
The 7648 requires you drill three holes in the floor at specific points (see diagram below).

658"
168 mm

•

8"
8 mm

8"
8 mm

3

3

378"
97 mm
0

758"
195 mm"
8 mm[ 16 ]

Date of print: 29-09-20103

www.morsona.com

8

Dim. without indication of margin acc. to DS/ISO 2768-1 m

Rev. Revisions
Title:

Construction:

Material:

Cast Iron GG15

Boreanvisning for evt. fastmontering Released:

Weight:9,98 kg

Drilling instructions for potential fixing

Model no.

7616

Borefixturer:
Drawingtype:

Work up Drawing

Location of file:

C:\UDV\tegninger\7600\7600-16 Pedistalfod.SLDPRT

Morsø 7600

Format:Scale:
Itemno.:Drawing no.:760

This drawing is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization fro

WARNING:
NEVER DRAW COMBUSTION AIR FROM A WALL, FLOOR OR CEILING CAVITY OR FROM ANY ENCLOSEDSPACE SUCH AS AN ATTIC OR GARAGE.
DO NOT INSTALL IN A BEDROOM OR A ROOM WHERE PEOPLE SLEEP.
CAUTION:A
THE STRUCTURAL INTEGRITY OF THE MOBILE HOME FLOOR, WALL, AND CEILING/ROOF MUST BE
MAINTAINED (I.E., DO NOT CUT THROUGH FLOOR JOIST, WALL STUD, CEILING TRUSS, ETC.)SPARK ARRESTOR
PARE ÉTINCELLESLISTED CHIMNEYCHEMINÉE REPERTORIÉE

STORM COLLAREMBASE TEMPÉTEROOF FLASHING/SUPPORTSOLIN TOUT/SUPPORTlISTED CHIMNEY
CONNECTORCONDUIT CHEMINÉERÉPERTORIEOUTSIDE AIR
EXTÉRIEUR AIR

FLOOR PROTECTORPROTECTION DU SOL

Rev. Revisions

Sign.:

Date:

20.05.10
RSV
Construction:
Title:
Outside Air Supply
Released:
Skorstenskitse
Only mobile home
approvedheatersmaybeinstalledintomobile
homes
and
it
is
a requirement that
Material:
Format:A4
outside air isWeight:
supplieddirectly to the heater.
Scale:
268,91 kg
1:15
Date of print: 25-05-2010

A-A

A
Acid Protection
If acid-washing the masonry around the stove, protect the stove surface with an acid-proof cover.

Morsø 7600

Model no.

Itemno.:no.:
Drawingtype:
However, in every
residential situation where the room has poor airDrawing
infiltration
via doorways, windowsof file:a a non-combustible
and the like, Location
providinga dedicated outside air supply may be required.7600-125
By attachingThis drawing is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization from the company.
conduit (ducting) directly to the air intake of the heater, outside air can be delivered directly to the combustion chamber. Some models may require an additional (optional) outside air kit. The conduit used forproviding outside air should have a free space equal to but no less than 3” diameter.
U:\udv\Tegninger\TILBEHØR\Skorsten\Ovn med skorsten til vejledning.SLDASM

Outside air is particularly important when the heater is to be installed into a well sealed room, or where
an extractor hood or ventilation system interferes with the room’s natural air pressure. Avoid placing
the outside air supply onto a wall that that is usually subject to negative pressure from normal wind
pattern.
[ 17 ]

Operation
Before you light your heater here are a few considerations.
Your new Morsø heater is approved for use with Solid Wood Fuel Only. DO NOT OVERHEAT. If the heateror chimney connector glows, your heater is overheating. Use Morsø stove thermometer for correct
operating temperature (#62901200).
Have your chimney inspected and cleaned at least once a year by an approved and certified chimney
sweep.
Be aware; if the heater is not operated or installed in accordance with the manufacturers instructionsor the fuel quality is poor, creosote buildup may occur within the flue thus increasing the risk of achimney fire.
To reduce the risk of smoke and flame spillage, operate the heater only with door(s) fully closed.
Caution:Your heater will be hot while in operation. Keep children, the infirm, clothing and furniture protected at
all times.

Choosing your fuelAll types of natural wood can be burned in your heater, but it must be well-seasoned and dry.
For the correct combustion efficiency and heat output, wood fuel should contain no more than 18%
moisture; this can easily be checked by using the Morsø Wood Moisture Meter (part # 62929900).
When wood fuel is cut to length you should allow for an inch gap between the fuel and side walls of thefirebox so as to ensure adequate circulation of the gases. Cut wood should also be split down middle toallow for the quick release of moisture.
To naturally season wood fuel, it should be stacked and stored under cover in an airy location where
fresh air can move around the stack. Some soft woods may take as little as one good summer to season whereas harder woods such as oak, maple, and elm may require up to 18 months or more.
Avoid burning overly dry wood that is gray in color as under certain conditions it can cause performance
problems, such as back-puffing and poor performance. Well seasoned wood will be light to hold andwhen looking at the ends it will show signs of cracking from the center outwards.
If your wood spits or sizzles when burned and your heater’s door glass persistently clouds up, it is possible that your wood is not properly seasoned (although a poor chimney draft can also cause this).
Never use drift wood (from the sea) as salt content may cause corrosion; construction wood that may
have been impregnated with chemicals should also be avoided.
Starting the first fire
When lighting your heater for the first time or after dormant periods, the initial fire should be fairly
gentle so that the finish paint can cure and the main cast plates of the heater can expand gently andsettle into position.
The heater paint cures at higher temperatures and it should be expected that during the initial firing
process a slight odor will be emitted into the room therefore, it is important to ventilate the room wellduring this process.

[ 18 ]

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The operating position of the air control lever (or dial) will vary and so will your loading intervals; bothare dependent on several factors, your lighting technique, the chimney draft, the fuel used and the heatrequirement etc.
Some basic techniques are outlined below.
In most models the heater is equipped with three air supplies:
Primary air is controlled by the air control lever situated beneath the ash lip or above the door, in somemodels, on the door. Primary air passes through internal channels where it is preheated and eventually
washes at high speed down the back face of the door glass – the air-wash system. This super-heated
air helps to achieve high combustion efficiency of the volatile gases driven from the fuel.
Secondary air is factory-set and enters the combustion chamber via the baffle assembly (or tubes)
located under the roof of the firebox. This source of combustion air mixes with the volatile gases andgiven the right conditions, secondary combustion takes place making for very clean and low emissions.
This air supply is constant and cannot be varied.
Pilot air or tertiary air enters the combustion chamber through a hole located behind the front bottom
section of the fire opening (below the front grates). This air ensures the embers in the fire bed stay hot.
Pilot air supply is factory-set and cannot be varied.
Lighting and loading procedure
When you are ready to light your heater, it is essential to quickly establish a chimney draft therefore
the initial lighting process will require you to leave the door cracked open for a few minutes. For added
safety, it is of course essential that you pay close attention to the heater at this point.
During the process it is also important to create and maintain a good bed of ash (1” thick) in the fire
bed. To achieve this be prepared to use 4-6lbs of dry kindling (thin sticks) during the initial lighting
process.
Before your start the lighting process fully open the primary air control lever (or dial).

[ 19 ]

How to light your stove
1. How to light the stove
As shown in the picture to the left you need the following:
2 fire lighthers (or 5-10 scrunched-up sheets of newspaper)
1 kg of dry kindling
Approx. 2-3 lbs. of chopped firewood

2. You should always have an insulating layer of ashes fromprevious firings in the bottom of the fire chamber.
1” of ash is a suitable base for the wood.
Start by placing a couple of logs, approzimately 1 lb., in thebottom of the burn chamber.

3. Arrange the kindling
Place approximately 2 lbs. of dry kindling wood on top of thelogs. Place a couple of kindling bags or newspaper just below
the top layer of kindling wood.

4. Lighting the kindlingLight the kindling bags or newspaper

5. Before lighting, fully open the primary air supply.
The flames work their way slowly downwards from the top.

[ 20 ]

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6. Leave the stove door ajar
After 5-10 minutes the heat will produce draft through thechimney, and the door can be shut.

7. Embers
After approximately 45-60 minutes, the last flames go out,
and a good layer of embers has been formed. More woodshould be added while there are still glowing embers. Use apoker or ash scraper to spread the embers, but ensure thatmost of them are positioneded at the front of the stove.

8. Re-Fuelling
Place three pieces of wood of approx ½ lb. each and approx.
9,8" long over the embers in a single layer, with a distance ofapprox. ½” between each piece.
When the air controls are opened fully, and the door is closed,
the wood will ignite within 2-3 minutes.

9. Optimal combustion
Finally, adjust the air supply control to the required position
to give optimal combustion. Maintaining a good fire box temperature will ensure secondary combustion of the smoke andgases giving a clean and efficient burn. The stove should berefuelled only while glowing embers remain.

10. How much ash should be left in the stove?
Keep a 1" thick layer of insulating ash. The ash layer insulates the bottom of the stove in the same way as the fire bricks
or vermiculite board on the sides of the stove. This ensures ahigh combustion temperature which contributes to a cleaner
more efficient combustion.
Furthermore, the ash layer protects the grate against premature failure and increasing its life expectancy. Empty theashpan as required. Store any hot ashes in a suitable noncombustibleash bucket until all embers are fully extinguished, cold ash can then be disposed of with the rest of yourhousehold waste.
[ 21 ]

Do not for any reason attempt to increase the air flow through your heater by altering or tamperingwith the air control mechanism. This could lead to serious safety and health hazards.
Warning: Fireplace heaters must never be left unattended when the door(s) is open.
If the door is left partly open, gas and flames may be drawn out of the heater’s opening thusincreasing risks from both fire and smoke. We recommend you to fit smoke and carbon monoxide
detectors in the room where the heater is installed.
DO NOT OVERHEAT THIS HEATER. Overheating may cause a house fire, or can result in permanent
damage to the heater. If any part of the heater glows, you are overheating.
The maximum recommended weight of wood fuel per load is 2 kg/h/4.5Ibs (approx 3 splitlogs).
Under normal firing, the average flue temperature on the single wall stove pipe, measured 8" (200 mm)
above the stove, is approx. 300° C (550°F). The maximum flue temperature on the stove pipe must notexceed 450° C (750°F). If the flue temperature exceeds 450°C (750°F), it is considered as over firing andmay cause premature wear and tear of the stove. Damaged caused by overheating is not covered underwarranty.
To help gauge the correct running temperature of your stove, we recommend you use the Morsø Stove
Thermometer (part # 62901200). The Stove Thermometer magnetically attaches onto the stove pipe
approx 8” (200 mm) above the stove’s top plate and measures the surface temperature of the stove pipe.
Please see your authorized Morsø Dealer for availability.
Chimney Draft
If smoke or fumes spill from your heater when lighting up and reloading, or if the fire simply will not respond, a poor chimney draft is almost certainly to blame. (In a very few cases, there may be insufficient
fresh air getting into the room - see installation advice above). Take advice from your dealer or chimney
expert on how best to upgrade your flue system and improve the draft.
Simple rules for controlling your heater
If you want less heat, put fewer logs on the heater and reduce the amount of air however, it is extremely
important to maintain a good layer of glowing embers throughout the combustion process.
Low heat output = less wood & less air
High heat output = more wood & more air
Soot particles will accumulate on the glass and vermiculite bricks if the heater is operated too low or if
your wood is not well seasoned.

[ 22 ]

www.morsona.com

MaintenanceA clean well maintained heater is essential for good health and a safe home environment. Your heater
should be properly inspected at least once a year.
When performing any maintenance procedure always wear protective clothing and always wear safety
goggles and gloves.
Exterior Maintenance
The heater’s outer surface is painted with a heat-resistant paint. Generally, it is best kept clean by using
vacuum cleaner with a soft brush attachment or, by wiping with a damp lint-free cloth.
Over a period of time, the dark gray painted surface may become lighter. The surface can easily berestored using our CFC-free aerosol touch-up paint (product code - 62902316DG) Morsø stove paint isavailable through your approved Morsø dealer.
In accordance with the instructions, this can be applied in minutes. Be aware however, that the newcoat of paint will need to go through the curing process as described earlier thus, you will need to ventilate the room when lighting the heater for the first time.
Internal MaintenanceTransparent Ceramic Glass
If the heater is operated in accordance with the instructions, there should be little or no dirt accumulation on the glass surface. If particles have settled during operation, it is probable that this will burnaway as the fire temperature is increased.
For heavier deposits that will not burn off, Morsø glass cleaner (product code 62902600) can be applied
when the glass is cold. Note: never use abrasive cleaners or scrapers on the glass surface.
Why does my glass get dirty?
• Fuel too wet and/or too thick.
• Fuel not split.
• Combustion chamber temperatures too low – maintain glowing coal bed.
• Poor chimney draft.
• Under firing the stove.
Safety Note: If the glass breaks, replace it with genuine Morsø ceramic glass immediately. Do not
use your heater with a cracked or broken glass; this can lead to overheating.
Installing the glass is relatively simple however; you should never install the ceramic glass when theheater is in operation.

[ 23 ]

Ceramic glass replacement

Ceramic glass cannot be recycled because it has a higher melting point than ordinary glass.
If ceramic glass is mixed with ordinary glass, the recycled material is spoiled and the recycling process
may be halted. Ensure the heater’s glass does not end up with ordinary recycled waste. It should bepresented separately to your local recycling center as ceramic glass.

Replacement procedure
1. Detach the door from the body (See door removal section) and place face-down on a protective, 		
non-abrasive surface.
Unscrew the screws that hold the glass clips. Title:
If the stove has beenusedRSVfor 01.03.2010
a number of years the 		Construction:
Released:screws may be tough to remove. DO NOT FORCE
THEM. If7600
theNAscrewsare tight, try applying heat 		Glasmontering
Material:
Format:A4(blow-torch) directly
onto the screw head.
Glass mounting 7600 NA
Rev. Revisions

Date of print: 01-03-2010

2.

Weight:128,21 kg

Model no.

-Morsø 7600

Date:

Sign.:

Scale:

1:5

Itemno.:Drawing no.: by drilling down its center 		In the event thatDrawingtype:a screw
does sheers off remove the remaining thread
Assembly
Location of file:
7600-119but
a do not use a larger
with 1/8 inch highspeed steel drill bit. Smaller drill bits may be successful,
This drawing is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization from the company.
bit. Make sure the bit stays away from the edge of the screw thread as this may damage the threadin the door casting.
U:\udv\Tegninger\7600\7600 Assembly.SLDASM

3.

Remove the old ceramic gasket material and clean the surface beneath with wire wool or emery 		
paper to remove any loose particles.

4.

Place the new gasket material in position around the perimeter of the window area, making sure topinch it in such a way that all four sides make a continuous seal. Leave no gaps.

5.

Place the new ceramic glass in position onto the new gasket and fasten by hand using new screws.

6.

Finally, give each of the screws an extra half turn or so, just enough that the glass is held tight andwill not dislodge when cleaning. IMPORTANT! Do not over-tighten the screws as this may put 		
excessive pressure on the glass, resulting in cracking. To reduce the risks of accidental breakage 		
avoid striking the glass, slamming the door or closing it onto a protruding log.

[ 24 ]

www.morsona.com

Internal Parts

The flame-path equipment - consisting of firebricks/vermiculite liners, bottom and front grates,
ceramic glass, baffle plate assembly, pilot air assembly and chimney connector collar are the main
components that are subjected to the rigors and heat of the fire; as a result it should be expected thatthese parts will need to be replaced from time to time as a matter of routine.
NOTE: The flame-path equipment, the ceramic rope and the paint finish are not covered by the
Morsø manufacturers warranty.
Replacement parts can be purchased through your approved Morsø dealer. We recommend that all
damaged or distorted parts be replaced as soon as possible to avoid collateral damage.
Should the baffle plate assembly become distorted from overheating, the combustion system will nolonger function properly and the heater’s efficiency will be severely compromised. Replace it as soon as
possible.

Removing the baffle assembly

If the baffle is damaged or warped due to overheating, it is vital to replace it at once.
First, carefully remove the vermiculite liners from the internal sides of the combustion chamber(firebox). Then, loosening the 3 x M6 allen screws that secure the baffle assembly in place; these
are located along the internal back wall of the firebox. The baffle can now be carefully lifted andremoved from the stove through the door.
The new baffle should be fitted and fastened before the side bricks are replaced. Ensure that all parts
are fitted correctly before lighting up the stove.

Door Rope Gasket

The ceramic rope gasket around the perimeter of the door(s) may harden over a period of time. It
should be checked for air-tightness at least once every year.
To check for air-tightness simply run a lit incense stick around the perimeter of the door when thestove is in operation; if the fine trail of smoke is drawn into the stove at any point, the gasket needs
replacing. Alternatively, close the door(s) onto a slither of paper; if the paper can be easily removed withlittle force, it’s time to change your door gasket.
Genuine Morsø door rope gasket kits (inc’ adhesive) are available from your approved Morsø dealer.

Cleaning the Heater and the Chimney Connector

It is recommended that the area above the baffle plate assembly and around the chimney connector
collar is inspected once a month for any soot or debris collection. If soot or debris is allowed to accumulate in this area, it could adversely affect the chimney draft and general operation. Typical symptomsof blockage are poor and sluggish draft, smoke spillage when opening the door, dirty glass and dirty
firebox liners.
In any case the chimney should be inspected at least once every year, preferably in the summer toensure that other blockages such as birds nest have not occurred.

Ash disposal

The level of ash-removal is dependent upon the level of use, the type of wood burned and the strengthof chimney draft. A 1” ash bed should be maintained during general and excess ash should be removed
when necessary.
Where the heater is equipped with an ash pan, excess ash should be emptied regularly. A full ash panallowed to build up underneath the bottom grate could trap heat and lead to premature failure of thegrate/pilot air assembly.
[ 25 ]

Caution:
Never empty ash when the heater is in operation.
Never use your household or shop vacuum cleaner to remove ash from the heater as it may stillcontain hot coals.
Always dispose of ash in a metal container.
Creosote formation
Your Morsø heater is equipped to burn the wood cleanly and efficiently however, if the chimney draft
is poor or when wood is burned too low or too slowly, tar and other organic vapors can be produced
and when combined with expelled moisture from the fuel, hazardous creosote is formed. The hazard
is worsened when the creosote vapors condense inside cool chimney and the risk of a chimney fire isdramatically increased.
A monthly inspection of the flue is highly recommended.

Chimney sweeping & inspection

No matter how often you use your Morsø heater you should establish a monthly inspection routine of
the heater and chimney system especially during the heating season.
Perform a chimney inspection when the heater is not in use. Using a mirror, look up through thechimney connector collar and look for visible signs of creosote build-up.
If you unable to inspect the flue system through the heater, it must be disconnected from the chimney
connector to provide better viewing access.
Cleaning the chimney must be done using a brush the same size and shape as the flue liner or chimneysystem. Run the brush up and down the liner several times until all soot deposits have fallen to the bottom of the chimney where they can be removed through a clean-out door or from inside the heater (ifstill connected) using a vacuum cleaner.
Some models may require baffle removal (see page 25)
The chimney connector should be cleaned in a similar way using a stiff wire brush. This proceduremight be better performed outside. Reinstall the connector sections after cleaning, making sure tosecure the joints between the individual sections with sheet metal screws.
If you cannot inspect or clean the chimney yourself, contact your local certified chimney
sweep or your approved Morsø Dealer.
If you do experience a chimney fire, you must act promptly
1.
Completely close the primary air control.
2.	Ensure ALL persons have vacated the building.
3.
CALL THE FIRE DEPARTMENT.
Annual maintenance
Prior to every heating season you should thoroughly clean and inspect the entire installation, repairing
any damage, and replace any parts that show signs of wear & tear.
Thoroughly clean and inspect the chimney and chimney connector.
Have a contractor make any necessary repairs to a masonry chimney.
Check door & ceramic glass gaskets for wear or compression and replace if necessary.
Check the glass for cracking; replace if needed.
Check door and handles for tightness and adjust if needed.
[ 26 ]

www.morsona.com

Leaving the heater for extended periods
Important notice:
When the heater is to be left unused for a long period of time (summer months etc) it is essential toclean it out thoroughly and leave the primary air control lever (or dial) open to allow airflow around the
combustion chamber and chimney. Ventilating your heater and chimney will prevent excessive corrosion
from moisture present in the chimney.
Make sure that the chimney has adequate protection from the rain and that rain water cannot comeinto contact with the heater; install a chimney rain cap, but do not under any circumstances block off
the flue completely.
Warning: If moisture is allowed to settle within the heater, rust will form. As it takes a grip rust willcause cast iron to swell. This can lead to undue pressure on the plate joints and in turn may result indamage to the heater.

Words of wisdom

It is good practice to thoroughly clean the heater immediately after the heating season. Adding a desiccant, such as kitty litter into the heater bottom will help absorb excess moisture during the summer
months. However, be sure to remove this prior to the heating season.
Thank you for choosing Morsø.
We hope you have many years of carefree warmth in its company. Some initial experimentation withloading and running techniques will help decide your normal routine. If you still have any questions
after this short learning phase, please refer to your approved Morsø dealer who should be able to help
If for any reason you require further assistance, please contact us in writing at the address on the frontof this manual.

[ 27 ]

[ 28 ]

www.morsona.com

Date of print: 16-12-2010

47

46

17

9

58

99

67

19

3

76

46

48

100

75

4

66

67

45

56

1

32

101

33
32

74

33

14

73

72

15

71

17

52

100

50

44

32

10

70

43

68

69

12

32

37

2

33

36

35

21

102

6
34

66

20

* 94

50

23

27

28

29

24

25

26

* 51

28

26

29

30

11

7600 Cumbustion Chamber

37

32

37

32

18

13
5

Assembly

49

38

41

Tilføjet pinolskrue pos. 101.

53

Morsø 7600

Parts Diagram 7600 NA

Res. tegn. 7600 NA

Title:Side 1 of 2

A2
1:7

Date:
17.11.2008

RSV

28.05.2009

01.09.2009

11.02.2010

05.05.2010

16.12.2010

Sign.:

RSV

RSV

RSV

RSV

RSV

7600-500 j

Drawing no.:Itemno.:Scale:

Format:Released:

Construction:

To skruer ændret til én pos. 67, nederst v. stang til håndtag.

Rev. RevisionsfÆndret skruer pos. 31 til pos. 100.

Tilføjet forrist pos. 115.

gÆndret pos. forrist fra 115 til 102.

55

h

54

i

17

33

j

43

43

69

68

This drawing is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization from the company.

C:\UDV\tegninger\7600\7600 Assembly.SLDASM

49

Location of file:

98

98

39

Drawingtype:

40

-

61

42

Model no.

Weight:Material:

8

7

59

Spare Parts

Date of print: 16-12-2010[ 29 ]

7670

7648

7

5

78

32

1

82

63

32

78

79

32

32
81

63

63

32

62

60

33

32

32

41

80

32

77

32
41

83

32

44

92

44

32

7642/7644

85

86

87

88

94

95

94

* 44

32

Assembly
C:\UDV\tegninger\7600\7600 Assembly.SLDASM

94

32Ændret skruer pos. 31 til pos. 100.

g

Morsø 7600

05.05.2010
11.02.2010

Side 2 of 2

A2
1:7

Date:
17.11.2008

RSV

28.05.2009

01.09.2009

Sign.:

RSV

RSV

16.12.2010

7600-500 j

Drawing no.:Itemno.:Scale:

Format:Released:Res. tegn 7600 NA
Parts Diagram 7600 NA

Construction:
Title:

Rev. Revisions

To skruer ændret til én pos. 67, nederst v. stang til håndtag.

Tilføjet pinolskrue pos. 101.

f

RSV

Tilføjet forrist pos. 115.

RSV

RSV

Ændret pos. forrist fra 115 til 102.
i

32

44

92

44

32

93

h

j

84

84

89

90

87

88

91

32

44

44

This drawing is Morsø Jernstøberi A/S' property and must not be sold, lended or copied without any written authorization from the company.

Location of file:-96

Drawingtype:

Model no.

Weight:Material:

97

POS.NR.:	Parts:
7642 NA			
1
Base plate
447601xx
2
Top frame
447607xx
3
Door447603xx
4
Front frame
447656xx
5
Rear plate, outside
447610xx
6
Top plate, outside
447611xx
7
Rear plate, inside
44760400
8Side plate, inside, right
447657xx
9Side plate, inside, left
447630xx
10
Top plate, inside
447605xx
11
Glass79760100
12
Air Canal, top
44761500
13
Air Canal, rear
44765400
14Intermediate plate
34761200
15
Brick, back7976070016
Air Canal, front
447613xx
17
Side plate, outside
447609xx
18
Brick, side, right79760300
19
Brick, side, left
79760400
20
Ash tray, front
447617xx
21
Ash tray71760400
22
Screw
73861800
23
Secondary Damper
71760100
24
Secondary Handle
71760200
25
Close plate, sec. Damper
71760300
26
Distance tube
71810200
27
Distance tube
71810300
28
Washer73610629
Screw74162000
30
Screw
7385110031
Screw
73861300
32
Washer791891
33
Screw
73162034
Cover448120xx
35
Fitting for Cover
71813200
36
Screw
73160837
Screw73163538
Rondelle, rear, outside
71762100
39
Distance tube
54143940
Rondelle, rear, inside
542633
41
Screw
73861400
42Nut73500643
Screw
79183544
Screw73162545
Washer73621046
Screw73850800
47
Glass fitting
71611361
48
Glass fitting
54181361
49
Screw
7386100050
Baffle plate, top
71761700
52
Distance tube
54143700[ 30 ]

www.morsona.com

7644 NA

7648 NA--447607xx
447603xx
447656xx
447610xx
447611xx
44760400
447657xx
447630xx
447605xx
79760100
44761500
44765400
34761200
79760700
447613xx
447609xx
79760300
79760400
447617xx
71760400
73861800
71760100
71760200
71760300
71810200
71810300
73610674162000
73851100
73861300
791891731620448120xx
71813200
7316087316357176210054143954263373861400
73500679183573162573621073850800
1611361
54181361
73861000
71761700
54143700--447607xx
447603xx
447656xx
447610xx
447611xx
44760400
447657xx
447630xx
447605xx
79760100
44761500
44765400
34761200
79760700
447613xx
447609xx
79760300
79760400
447617xx
71760400
73861800
71760100
71760200
71760300
71810200
71810300
73610674162000
73851100
73861300
791891731620448120xx
71813200
7316087316357176210054143954263373861400
73500679183573162573621073850800
1611361
54181361
73861000
71761700
54143700

POS.NR.:	Parts:
		
53
Cover
54
Bar
55
Distance tube
56
Plug f. Door
57
Fittig f. Door
58
Fitting f. Handle
59
Fitting for Flue Collar
60
Pedestal
61
Fittig f. Door
62
Foot, f. Pedestal
63
Screw
66
Washer
67
Screw
68
Flue Collar
69
Screw
70
Stop Bar
71
Baffle plate, cast iron
72
Baffle plate, stainless
73
Screw
74
Screw
75
Jet, pilot air
76
Tightening tape, f. glass
83
Door bottum part84
Base plate, bottom section
85
Rubber Stop
86
Screw
87
Ball track88
Pop rivet
89
Plate f. Drawer
90
Screw
91
Distance plate, Drawer
92
Side plate, bottom
93
Rear plate, bottom
94
Screw
95
Drawer Box
96
Top plate, bottom
97
Washer98
Screw
99
Handle
100
Screw
101
Screw
102
Front Grate

7642 NA

7644 NA

7648 NA

442610xx
54500654500771760700
71760600
7176110044256700--71762400----746006
739625443441xx
74362554454134762700
71762200
74163504
74160804
71762300
79074200
447624xx
447629xx
79082007
74261279082006
74700300
71760900
73161271761000
447623xx
447625xx
73860800
71760800
44762200
79189800
73961000
71762600
73860900
73940654762721

442610xx
54500654500771760700
71760600
7176110044256700--71762400----746006
739625443441xx
74362554454134762700
71762200
74163504
74160804
71762300
79074200
447624xx
447628xx
79082007
74261279082006
74700300
71760900
73161271761000
447623xx
447625xx
73860800
71760800
44762200
79189800
73961000
71762600
73860900
73940654762721

442610xx
54500654500771760700
71760600
7176110044256700
547605xx
71762400
447616xx
731616746006739625443441xx
74362554454134762700
71762200
74163504
74160804
71762300
79074200------------------------------73961000
71762600
73860900
73940654762721[ 31 ]

[ 32 ]

www.morsona.com

Morsø Jernstøberi A/S - 31.01.2011 - 72761500