attika RAIS 500 Manuel D'utilisation page 67

English RAIS/attika - manual for R 500
Drying and storage
Drying wood takes time: proper air drying takes approx. 2 years.
Here are some tips:
Store the wood sawn, split and stacked in an airy, sunny place, which is protected
against rain (the south side of the house is particularly suitable).
Store the firewood stacks at a hand's breadth apart, as this ensures that the air flowing
through takes the moisture with it. Avoid covering the firewood stacks with plastic, as
this prevents the moisture from escaping. It is a good idea to bring the firewood into
the house 2-3 days before you need it.
Regulating the combustion air
All RAIS stoves are equipped with a one-handed operating lever for regulating the
damper. The stove-specific regulating mechanisms can be seen on the diagrams.
Primary air is the combustion air added to the primary combustion zone, i.e. the bed of
glowing embers. This air, which is cold, is only used in the lighting stage.
Secondary air is the air which is added in the gas combustion zone, i.e. air which contri-
butes to the combustion of the pyrolysis gasses (preheated air, which is used for the
cleaner glass system and combustion). This air is sucked through the damper under the
combustion chamber and is pre-heated through the side channels and then emitted as
hot scavenging air onto the glass. The hot air rinses the glass and keeps it soot-free.
The tertiary channel, which can be seen at the the top of the combustion chamber
towards the back, serves to combust the final gas residues.
By setting the interval between position 1 and 2, the energy content in the firewood is
used optimally, as there is oxygen for combustion and for the burning of the pyrolysis
gasses. When the flames are a clear yellow the damper has been set correctly. Finding
the correct position comes with time after you have used for stove for a while.
It is not recommended that you turn it down completely. A mistake commonly made
is shutting the damper too early because it feels too hot. This results in dark smoke
emanating from the chimney and in the calorific value of the firewood not being used
to its fullest.
Room ventilation and stoves
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.
The stove requires a permanent and adequate air supply in order for it to operate safely
and efficiently.
In accordance with Building Regulations Approved Document J a permanent air supply
vent is required 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.
30