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Installation
When the extractor is to be installed
above an electric hob, the minimum
distance between the hob and extractor
Gas: 650mm minimum
must exceed 650mm.
Electric: 650mm minimum
When the extractor is to be installed
above a gas hob, the minimum distance
Fig. 4
between the hob and extractor must
exceed 650mm.
If the instructions provided with your gas hob state that the required
distance between the hob and extractor must be greater than
650mm, then that is the distance that should be observed; this is a
legal requirement and may lead to your hob being disconnected from
the gas supply and the installation being reported to RIDDOR (The
height should be measured from the top of the burners).
IN THE ABSENCE OF ANY INSTRUCTIONS SUPPLIED WITH THE
GAS HOB, THE MINIMUM DISTANCE BETWEEN THE HOB AND
EXTRACTOR MUST BE AT LEAST 760mm.
The width of any hob must not be greater than the width of the
extractor installed above it.
Ducting and Ventilation
For best performance and lowest noise output, we recommend the
use of 150mm ducting. 125mm ducting may be used but this will
reduce performance and increase the noise of the extractor.
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