I'm not sure if there is a minimum distance,normally they are fitted in a standard unit.The average distance are approx 800mm and also not too low for obstruction of your head.
It's 760mm vertically from 50mm outside the hob edges, to any COMBUSTIBLE surface. Hoods aren't, of course. CHeck the cooker/hob installation instructions, which override the BS's anyway.
750 – 800mm should be OK. I’ve got a SS & curved glass, twin fan extractor over a 1m wide, 7 burner cooking range; the manufacturer recommended a min of 850mm but that was really way too high for the aesthetics of the hood & the surrounding wall units so I installed it at 750mm. They tend to play it on the safe side; my range often has most of the gas burners going at once and it’s been operating for 18 months now without any problems.
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Lynda, moderator
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