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Important:
Negative impacts during vapour extraction:
• Disruptive flows of air in the room affect the vapours, e.g. a draft
• Cooling of the rising vapours – Vapours do not reach the cooker hood
• Climate: The room and canopy are cold – Condensation forms
• Relative humidity in the room is too high – Condensation forms quickly on cold objects
Additional impact zone if items are suspended from the ceiling
If the ceiling extractor is used in rooms with high ceilings and the ceiling is lowered in the cooker hood area, a suitable impact surface
must be ensured in the area around the edge of the cooker hood. The size of this area is calculated from the distance between the
hob and the ceiling extractor around the outside of the cooker hood. The distance between the cooker hood and ceiling extractor is
multiplied by a factor of 0.3. This gives you the size of the surrounding impact zone.
Positioning of a ceiling extractor above a hob
To ensure the most effective vapour collection performance possible, the distance between the hob and cooker hood is not the only
important factor; the cooker hood also has to be positioned accurately above the hob. The ceiling extractor should be positioned in
the middle above the hob. Any displacement could reduce the performance of the cooker hood.
Planning notes for ceiling extractors
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