How high do you hang a BBQ Rangehood above a BBQ?
If you live in Western Australia it is easy 1200mm is the Mandatory height required under WA law.
If you live anywhere else in Australia the only limiting factors are what the Warranty Terms are of the BBQ Rangehood being installed & what height limitations you might have!
An entity called Australian Standards is just that an entity a business not a government department.
They say that 1200mm above an OPEN GRILLE is a sufficient height to stall any flame being sucked up into the Rangehood!
Further the say that if you have a HOT PLATE you can hang the BBQ Rangehood 900mm above it as it has no open flame.