Hi Vijay - yes it is still effective but it very much depends on the type of extractor, its power rating and the type of hob and the size of room. There are many factors to consider not just the distance away from the hob.
can you tell the idea for how to fix fan in high ceiling designs
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Position of ceiling fan in bed rooms.
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PlaceDesign Kitchens and Interiors
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can you tell the idea for how to fix fan in high ceiling designs
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