As joe said if the ceiling is perfectly air.
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Running an attic fan isn t just running any other fan of your home.
There can be issues like motor dis function ball bearing damage and so on.
Yes using fans to put positive pressure in the house would eliminate pulling conditioned air into the attic but if the ceiling has leaks you ve now turned the problem from exfiltration to infiltration and are pushing hot attic air into the house there s also still the problem of using all that power for something that s not necessary.
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And the first signal of any such issue is the attic fan humming noise.
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Quietcool attic fans work almost everywhere almost anytime.
During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.
With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly.
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