User Manual Glem GQA90SC 90cm QuietAir Canopy Rangehood

Thank you for your question about ceiling heights, easy
way for measurements is total floor to ceiling height, less
benchtop height, less height from the top the cooktop to
the underside of the rangehood above gas 750mm then
see if you have a gap.
For example: floor to ceiling 3000mm,less benchtop height
900mm=2100 remaining, less cooktop height for gas
cooktop 750mm to the underside of your rangehood,
balance 1350mm less
total rangehood height 1090mm means i would be 260mm
short, how to fix this two options have the builder create a
false ceiling height in this area or take the bottom portion
of the flue to a stainless steel fabricator to make one
complete piece of stainless steel flue in the height required.