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Venting
The hood is more effective when used
in the extraction mode (ducted to the
outside).
Venting kits may be purchased through your
retailer or DIY store, and must be ducted
to an outside vent of 150mm (5ins) or 125mm
(5ins).
The best performance will be achieved by using the
largest diameter ducting available.
Where flexible ducting is fitted the length
should be no more than:
3 metres with one 90° bend
2 metres with two 90° bends
Bends of more than 90° will reduce the
efficiency of the hood and reduce the airflow.
The ducting used must be manufactured
from fire retardant material conforming
to the relevant British Standard or
DIN 4102-B1
When the hood is ducted to the outside the
charcoal filters must be removed.
Recirculation
If you are using the hood for recirculating,
ensure the charcoal filters are in position
following the instructions contained in the
section (To Remove/Replace the Charcoal
Filters).