Wamsler W2-50 Instructions De Montage Et D'utilisation page 28

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1.3 Instructions
For installation and for connection of flue, the requirements of the Fire
Regulations (FeuVO in Germany) apply, as well as local building regulations
such as the following technical standards DIN 4705, DIN EN 13384, DIN
18160, DIN EN 1856-2 and DIN EN 15287. In order for the stove to function
correctly the chimney to which you want to connect the stove must be in good
condition.
1.4 Surrounding space
The stove draws the air required for burning from the surrounding room. You
must ensure that sufficient air can be drawn in through non-sealed windows
and outside doors. In addition you must ensure that a room volume/heat
capacity ratio of at least 4 m³ per kW nominal heat capacity is available. If the
volume is less than this, then air vents can be used to provide access to further
air supply in other rooms (connecting vents min. 150 cm²).
1.5 Air supply
A constant supply of oxygen or air is required for the combustion process.
Normally the air available in the room where the stove is installed will be
sufficient.
If the windows and doors are well insulated, if mechanical air extraction
mechanisms are present ( e.g. in a kitchen or bathroom) or if there are other
sources of fire (including gas boilers) in the home, then the supply of available
air can be significantly impacted. If this is the case, the option exists to draw in
air for burning directly from outdoors or from another, well-ventilated room (e.g.
a cellar).
The stoves provide a built-in air supply opening in the base, Ø 80 mm.
For the air supply you must use only smooth pipes with a minimum diameter of
80 mm. A shutoff valve must be placed in the air supply close to the stove,
which must be installed professionally, at the bends there must be inspection
openings for the local authority responsible for approving heating systems and
it must be professionally sealed against condensation. The pipe must not
be longer than 4 m and must not have more than 3 bends. If the pipe exits out-
of-doors, then it must have appropriate wind protection and be covered by a
mesh.
NOTE: In the room where the stove is installed or in the neighbouring
rooms there must not be any air extractors or similar equipment.
These could cause considerable operating problems and even
represent a risk. Consult the local authority responsible for
approving heating systems.
NOTE: The room where the stove is to be installed must not have
equipment such as extractor hoods, ventilation systems etc. which
could mean that that room or neighbouring rooms have reduced air
pressure.
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