3 ms·
>When we use the ac it lets hot air from the attic in, and worse all winter it is letting cold air from the attic in. The one in my relative's house had louver
by GeekyBear 5y ago
>When we use the ac it lets hot air from the attic in, and worse all winter it is letting cold air from the attic in.
The one in my relative's house had louvers that would open when you turned the fan on and then close when you turned it off, so it sealed itself off when not in use.
They saved a fortune by not having to run the ac all summer.