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ACR Heat HERITAGE N25 Installation And Operating Instruction Manual page 8

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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.
8

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