Reducers on the air intakes are not permitted.
The flue must be homogenous.
Flue pipes or tubing used must be suitable for heater installations and be able to resist to
chimney fires. The flue must be able to withstand temperatures 50⁰C higher than the
declared smoke/fume temperature for the unit – whatever the installation method.
The height of the flue should not be less than 5 metres and should exit into “free” air at least
40cm above the crest of the roof or any higher obstacle that may be within 8 metres of the
chimney.
Any changes in the angle of the chimney must be as gentle as possible (a 45⁰ bend is highly
preferable to a 90⁰ bend).
The draw should be between 12 and 15 Pascals during normal (average) operation and
should drop to 5 Pascals when running the unit on low. When running on a normal average
setting the draw should not drop below 12 Pascals as the performance may be affected.
If there is too much draw, a damper can be installed in the flue/chimney
. If there is not enough
draw it may be that one of the points above has been disregarded.
If the chimney conduit is too large, the volume of air to heat is too large to overcome and a
normal draw cannot be established. In this case the chimney should be lined with tubing.
The tubing used must conform to regulations and be suitable for heater installations (see
above).
Pottery chimney pots must be removed if they cause a reduction in the flue diameter.
Before connecting the heater the chimney must be checked to ensure that it is clean and, if
necessary, the chimney must be swept.
The heater should be installed by a professional and all national and local regulations should
be adhered to.
An extractor operating in the same room as the heater can adversely affect the functioning
of the heater.
Other heaters operating in the same room at the same time can also cause problems with
the draw.
Never seal off incoming air vents into the room. Air vents should be situated in positions
where it is unlikely that they would be accidentally blocked. The heater uses air that comes
into the room in order to operate correctly – it is important that this air supply can renew
itself from an external source.
This heater is not to be connected to a chimney with multiple connections.
The spigot for connection to the chimney/ flue may be attached either to the rear or top of
the unit. Whichever position is not used must be sealed with the “blanking” plate.
IMPORTANT
Ensure that the floor can support the weight of the unit. If necessary a weight-bearing slab
(cement, stone or tile) may have to support the unit.
If the floor is of combustible material (wood, vinyl) it should be adequately protected with
a material that surpasses the front of the unit by at least 40cm.
Pipes that are used must be of the correct diameter and should preferably be enamelled as
these are more resistant to corrosion. Any horizontal section must be as short as possible so
that the hot fumes/ smoke can rapidly establish the correct operating draw for the unit.
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