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We had one in our house in Connecticut. I ran it early morning in the

summer. IE, if I woke up and it was 65 outside, well, that's lower than the 75 I set the AC at, so open windows, turn on the attic fan and suck cooler air into the house AND ALSO suck that air up into the attic and force out the hot air that's built up up there.

It was on a timer, so I could set it for an hour or 2, or less, then close all the windows and doors. The house was well insulated, so the cool retained for awhile before the AC had to do any work again.

And if I wanted to, I could even do it without the windows open. Just open the basement door and get some effect from sucking up the cooler air from down there.

(In response to this post by HokieDevil)

Posted: 07/11/2020 at 10:00AM

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Current Thread:

Attic vent fans: Yay or nay? -- HokieDevil 07/10/2020 4:53PM

We had one in our house in Connecticut. I ran it early morning in the -- Late 80s Hokie 07/11/2020 10:00AM

Nay for me. I re-roofed a few years ago and got rid of the fan and all of -- IB4TECH 07/10/2020 9:31PM

The trend Is towards sealing up vents. I am a proponent of attic fans but -- GreenvilleVT 07/10/2020 5:45PM

I assume you have a ridge vent? That’s usually good enough. -- VT Pops 07/10/2020 5:31PM

Do your research on whether it increases attic humidity by drawing in -- Femoyer Hokie 07/10/2020 5:24PM

My uncle had a attic fan that cooled the whole house at night (somewhat) -- ColoVT82 07/10/2020 5:06PM

That's a "whole house fan"....we have one, too. -- MP4VT2004 07/10/2020 9:40PM

I had that when I lived in Maine. Worked amazingly well in that climate. ** -- VT Pops 07/10/2020 5:28PM