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Installation
If the exhaust is ducted through an
outside wall, a telescopic wall vent or
a roof vent (available as an optional
accessory) is recommended.
If the exhaust air is to be ducted into
a flue, the ducting must be directed in
the flow direction of the flue.
Where ducting is horizontal, it must
be laid to slope away at a gradient of
at least 1 cm per metre. This is to
ensure that condensate cannot drain
back into the cooker hood.
If the ducting is to run through cool
rooms, ceiling space, etc., there may
be significant variations in
temperature between the different
areas. The problem of condensation
will need to be addressed. The
ducting will need to be suitably
insulated.
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Silencer
To achieve even further reductions in
noise levels, a special silencer (optional
accessory) can be fitted in the ducting
system.
Extraction mode
The silencer not only reduces noise
from the motor outside the house, but
also sounds from outside (e.g. traffic
noise). For this reason the silencer must
be positioned as close as possible to
the ducting exit .