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I'm located in Miami and installed a whole house fan two years ago and love it. The best time for it is in the winter and yes, you have to open windows and/or doors. The fans are powerful, probably 5400 +- cfm. If the air is moving out, it's got to come in from somewhere. Winter is great because you get that cooler air flowing through the house, summertime, ...


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Your idea should work. I cut a hole in my garage ceiling, installed a 20"X 30" air return grill and filter, built a 48" tall box above the hole and installed a fan blowing positive presure into the attic. My idea was to save money on my power bill during hot Arizona summers. I have not seen savings for the Air Conditioner, but the fan draws ...


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