whole house fan - belt or direct drive?

Old 06-18-04, 07:45 PM
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whole house fan - belt or direct drive?

any advice? and is there a rating of how big of a fan to use compared to square footage of living space?
Old 06-18-04, 08:17 PM
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A belt drive is quieter, but requires maintenance. One rule of thumb is to multiply your house's square footage by three to obtain the number of cubic feet of air to move per minute. 1,000 square feet of living space would require a fan capable of moving 3,000 cubic feet per minute.

Here is some info on installing one.


Hope this helps.
Old 06-25-04, 07:01 AM
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Go for the belt drive. You have control over the speed and noise that way.


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