I have a range hood in my kitchen that moves air from a 6 in pipe reduced down to a 4 in pipe. This causes air flow turbulence which makes the operation noisy and inefficient. I'm thinking that if i can reduce the speed of the blower motor the hood would work more efficiently and quietly. The blower motor is 190 watts, has 3 preset speeds and is 120v/60hz. Is there a way to lower the preset speeds?
Kitchens – Adjusting speed of a kitchen range hood motor
electric motorkitchensrange
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Best Answer
Simply put replace the 4" pipe with 6" pipe. 4" pipe is just too small for a range hood. This is going to be the only realistic way to make your range hood more efficient.
To put this into perspective....
So do the job right rather than making a science project out of modifying your range hood motor speeds!!