[quote=briansd1]How does that attic fan work? I presume it draws the hot out out the attic preventing your house from heating up.
Does is draw air out of the house through the attic as well?[/quote]
It’s a high capacity, high CFM, fan that sucks the air up into the attic (which has vents.)
You have to be careful *when* you use it… We keep our house closed up during the heat of the day… by the afternoon it can be 10-15 degrees cooler inside with just this. Then when the sun is only on one side of the house- we crack windows on the shady side of the house and turn on the fan… that way we’re sucking in coolish air and pushing out the hotter air. It creates quite a breeze.
We use it in the morning till the temp in the house is the same as outside. Then turn of the fan, shut windows and curtains (in places we don’t mind the curtains shut.)
A few times we accidentally turned it on, late afternoon, when windows on the sunny side were open – not good to pull HOTTER air into the house. But you can undo that quickly by reversing which windows are open.
Noise can be an issue. Wouldn’t want it in the same room as me. But in our house it’s upstairs in the hall – not someplace people hang out…