ACR Heat HERITAGE N25 Supplement

ACR HEAT PRODUCTS LTD
“HERITAGE” N25 INSTALLATION AND
OPERATING INSTRUCTION MANUAL
Please keep this manual in a safe place for future reference.

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Thank you for purchasing an ACR Heat Products appliance. This
manual contains instructions on how to install your appliance and make
full use of it’s functions for both your comfort and safety. Please ensure
this manual is read fully both before installation commences and
operating your appliance. If you have any queries, please telephone your
supplier immediately before proceeding.
CONTENTS
PAGE 3 PRODUCT INFORMATION
PAGE 4 INSTALLATION INSTRUCTIONS
PAGE 5 ASSEMBLY
PAGE 6 SOME FACTS ABOUT YOUR STOVE
PAGE 7 LIGHTING YOUR APPLIANCE
RECOMMENDED FUELS
PAGE 8 MAINTENANCE
THE ENVIRONMENT
PAGE 9 TROUBLESHOOTING

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PRODUCT INFORMATION
GENERAL INFORMATION
Output 2–12Kw (doors closed) 2–7Kw (doors open)
Chimney Draft required
Weight
Flue Diameter
Material Cast Iron
OPTIONAL EQUIPMENT
Multifuel grate and ashpan kit
PLEASE INSERT LINE DRAWING SHOWING FULL MEASUREMENTS
OF THIS MODEL – FRONT & SIDE DRAWINGS IF POSSIBLE PLEASE
CLEARANCES REQUIRED
Hearth Requirements
The appliance must stand on a fireproof hearth made of non-combustible
materials with a minimum thickness of 12mm. If the hearth is
constructed on timber there must be a clearance of at least 250mm from
the timber to the top surface of the hearth. A 300mm hearth must be
provided to the front of the appliance with 150mm of hearth either side of
the appliance. (All clearances are based on brickwork of a minimum of
200mm thickness)
A gap of 150mm is required at the back of the appliance from a non-
combustible wall. This can be reduced to a minimum gas of 50mm when
the non-combustible wall is at least 200mm thick.
A clearance of 300mm from the top of the appliance (not including
canopy) is required.
THE MANUFACTURER WILL NOT BE HELD RESPONSIBLE FOR
DAMAGES TO THE APPLIANCE DUE TO THE USE OF PROHIBITED
FUEL OR IF THE APPLIANCE HAS NOT BEEN INSTALLED AS PER THE
MANUAL AND / OR CURRENT BUILDING REGULATIONS

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INSTALLATION INSTRUCTIONS
IMPORTANT INFORMATION
This appliance must be installed in line with current building regulations
either by a registered installer or in conjunction with your local Building
Inspector. If in doubt, please consult your stockist or local planning
office.
If installed incorrectly, this appliance could contribute towards serious
accidents and / or damage to your property and could invalidate your
warranty.
The manufacturer’s responsibility is limited to the supply only of this
appliance.
We recommend that a fireguard is used in the presence of children and
old and / or infirm people for safety.
The installaer should comply with Health & Safety regulations.
Adequate facilities should be provided for handling the appliance.
Extra care should be taken to avoid accidents and breakage of the glass
panels.
Care should be taken to avoid fire cement contacting the skin. The
material is caustic and in the event of skin coming into contact with the
fire cement, wash off immediately with clean water.
BEFORE YOU INSTALL YOUR APPLIANCE
Make sure the chimney is in good working order and that the
recommended required chimney draft is obtained. You must also ensure
that there is sufficient fresh air supply within the room as per Building
Regulations. If insufficient fresh air is provided, this will lower the
atmospheric pressure within the room and may lead to poor combustion
and smoke leakage from the appliance. We recommend that a minimum
airbrick of 33cm squared is installed (54cm squared for installations with
flue draft stabilisers)
The doors on your appliance have been accurately fitted in our factory. In
case you do find a problem in operating the doors, please report back to
your stockist now and do not continue with the installation until advised
further. ACR Heat Products can not accept responsibility for incorrect door
alignment once the appliance has been installed.

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Figure 1
ASSEMBLY
The following tools are required:
10mm, 13mm and 17mm wrench or socket wrench
Cartridge gun for the fire cement
Electric drill for self threading screws
1. Start off by getting an overview of all the loose parts and check that
you have the following:
a. Smoke dome
b. 2 x bolts with washer to fix the smoke dome
c. Insert with radiation shield
d. 3 x M10 bolts with counter nut for floor adjustment
e. Wooden handle
f. Fire cement
g. Heat resistant glove
h. Warranty card
i. 2 x right angle brackets & 6 bolts to suit
j. flue adaptor
k. Canopy and brackets (if appliance to be installed freestanding)
l. Base cover
2. Turn the appliance onto it’s back and fix the floor adjustment bolts in
the approximate height needed for your installation.
3. Installation of the smoke dome
Place the pre-roped smoke dome on the top of the stove. Secure in
position using the nuts and bolts provided as illustrated in figure 4. The
smoke dome can be rotated no more than 50mm to the left or to the right
to coincide with the flue connection. Fix the flue adaptor to the smoke
dome exit and seal with fire cement.

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4. Your stove is now assembled and can be put into place in the
fireplace and connected to the flue system. The internal stove base is
protected with a sheet of plastic – please remove this plastic at this point.
5. The canopy can now be attached to the stove. Take 1 right angle
bracket and using the holes provided, fix the bracket as per drawing to
the side panel and secure with 3 bolts. Repeat this procedure on the
opposite side panel.
Diagram of bracket
6. Place the canopy on the stove resting the base of the canopy on the
right angle brackets. Ensure there is a minimum 15mm gap between the
rear wall of the fireplace and the rear of the canopy to allow the hot air to
circulate.
When satisfied with the position of the canopy, attach each right angle
bracket into the canopy base and secure with the supplied nut & bolt.
7. Attach the base cover to the front of the appliance by sliding the cover
into the gap provided by the leg bolts.
SOME FACTS ABOUT YOUR STOVE
This appliance is fitted with air controls which should be operated as
follows:-
PRIMARY AIRSLIDE
(Located to the right hand side below the doors)
Pushed in = CLOSED
Pulled out = OPEN
SECONDARY AIRSLIDE
(Located to the right hand side above the doors)
Lever to the left = CLOSED
Lever to the right = OPEN
To open the door, point the door handle up. To close the door, point the
door handle horizontally.

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The inside of the stove is lined with vermiculite panels. These will break
under strong impact. Therefore, please ensure that when reloading your
stove, logs are placed onto the stove base rather than thrown to avoid
any breakages. The vermiculite panels are a “wear and tear” component
and are not covered by warranty.
FIRST FIRING OF APPLIANCE
During the first firing of your stove, the high temperature paint will cure.
This process will give off some smoke for a couple of hours depending on
the temperature of the fire. This is perfectly normal but we do
recommend that you leave any windows and doors open for this period in
order to ventilate the room.
As part of the curing process, the paint will become soft during the
heating. You should therefore be careful when touching the stove to
avoid damaging the paint finish or leaving any marks on it.
LIGHTING THE STOVE
Ensure the protective plastic on the stove base has been removed before
attempting to light the fire. Open both sets of airslides fully and place
newspaper and kindling wood or firelighters onto the stove base and light
with a taper or match. Leave the doors slightly open. Allow the fire to
burn fiercely at this point in order to warm the chimney as quickly as
possible. Gradually add larger logs until the fire is well established.
Close the doors at this point but keep both airslides in the fully open
position. When the fire is fully established, close down the primary air
slide and use only the secondary airslide to control the rate of burning.
For overnight burning, load the stove with logs and once well established,
close the doors and shut down both sets of airslides.
When using the optional solid fuel grate to burn smokeless fuels, we
recommend that you place either kindling wood and newspapers or
firelighters onto the grate and add a small amount of solid fuel to the
kindling. Once lit, open both airslides and pull the doors together
leaving just a small gap. Gradually add more solid fuel to the grate until
the fire is established. The doors can now be closed and the secondary
airslide closed down. Control the rate of burning by using the primary
airslide.
RECOMMENDED FUELS

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Seasoned hardwood is the best fuel to burn with regards to efficiency and
emissions. By seasoned, we mean that the wood should be a minimum
of 2 years old and have a moisture content of no more than 20%.
Split seasoned hardwood is better than round uncut logs. Split logs dry
faster and as they have a greater surface area and will burn at a higher
temperature.
In order for the secondary combustion to work efficiently, a combustion
temperature in excess of 600C is required. Using seasoned hardwood,
the stove will maintain such high temperatures. If you burn green wood
or unseasoned wood, this temperature will be difficult – if not impossible-
to reach.
Green or unseasoned wood contains a high percentage of moisture which
if attempted to be burnt, far less energy will be given off as more energy
is used trying to drive the moisture out of the fuel. This decreases the
combustion temperature meaning that the secondary combustion system
does not work properly, which leads to dirty glass and gasses and
unburnt particles being released into the flue system and atmosphere.
This is the main cause of chimney fires as the tars and creosotes
produced are extremely flammable.
Smokeless fuels such as Homefire and anthracite are suitable for use
with the optional solid fuel grate.
PROHIBITED FUELS
Green wood, treated timber e.g. railway sleepers, telegraph poles, pallet
wood etc. House coal / bituminous coal
THE USE OF HOUSE COAL IS PROHIBITED ON THIS APPLIANCE.
MAINTENANCE
The glass may be cleaned using a specialised stove glass cleaner or warm
soapy water. Be carefull not to spray glass cleaner or spill it onto the
stove as this may harm the paint finish. As a substitute, lemon juice
mixed with wood ash and then rubbed onto the glass with a piece of
kitchen paper will do the job as well. Only use soft, clean cloths to wipe
the glass. Anything abrasive could scratch the surface of the glass. If
you burn solid fuel, DO NOT USE THIS METHOD as solid fuel ashes are
too abrasive and will scratch the glass – only use the specialised stove
glass cleaner method.
The rope door seals need to be inspected regularly for wear and tear. We
suggest these are replaced annually to ensure your stove is as efficient as
possible. Worn door seals will contribute towards dirty glass.

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The vermiculite panels inside your stove play a vital role in the efficiency
of the appliance. These contribute to a high combustion temperature
which is essential for the secondary combustion system to perform at it’s
best. These panels will degrade slightly over a long time and should be
replaced in such cases. If the vermiculite panels become cracked, the
stove is still safe to use.
THE ENVIRONMENT
We all have a moral responsibility to reduce the environmental effects as
much as we can. You have already taken a major step in helping the
environment by choosing this product. This model is cleanburning and
complies with some of the strictest environmental and safety standards
in the world and therefore keeps pollution to a minimum, decreases soot
sediments in your chimney and has a higher efficiency rate than a
conventional stove.
Wood is environmentally friendly as it consumes more Carbon Dioxide
whilst growing than it emits during the burning of it. It is one of the very
few fuels renewable within our lifetime. In fact, wood is the only fuel that
the Carbon Trust recognise as being “zero rated” in it’s kg’s of CO2
emitted each week into the atmosphere. In other words, the CO2
produced through burning is cancelled out by the fact that it consumes
more than this during it’s growing.
TROUBLESHOOTING
PROBLEM CAUSE OF PROBLEM
SMOKE ENTERING Make sure that the wood being burned is well
ROOM FROM seasoned with a moisture content of no more
APPLIANCE than 20%. Trying to burn “green” wood is like
trying to burn water.
Ensure you are not closing down the airslides
before the fire is established.
Ensure you have allowed the chimney to become
warm / hot during the initial lighting period.
Check for a flue blockage – consult a chimney
sweep if necessary.

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If the problem persists, consult your stockist on
the suitability of your chimney.
TAR FORMATION Use of unseasoned wood
Poor chimney draught
Operating the appliance at very low
temperatures
GLASS SOOTING UP Use of unseasoned wood
Check the secondary airslide is open