For maximum efficiency with the fan, have it blowing out of the window, with a good tight seal around it. With other windows open, it more effectively sucks the heat out of the house.
And of course, if you rig it to take advantage of prevailing winds so the fan works in the same direction as the wind is blowing, that helps too.
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"He who serves all, best serves himself" Jack London
Originally Posted by
Bjforrestal
I don't care if you are on a unicycle, as long as you're not using a motor to get places you get props from me. We're here to support each other. Share ideas, and motivate one another to actually keep doing it.