New Whole House Fan!

I've been wanting to do this project for two years now--install a whole house fan. What is it? Why is it so great and so green? Watch this. But I've been putting it off because I thought it required more work than it actually did. When I watched this video I realized installing it was much easier than I thought. So I bought one and just installed it in an evening and a morning. It would have taken less if I didn't have a lathe and plaster ceiling.

What is it? It is a fan that cools the house quickly and with very little energy. It means we probably won't have to use AC, and it will mean fresh air in the house instead of recirculated air. The concept is simple--it pulls the cool morning or evening air from outside from windows into the attic. This displaces the hot air in the attic (which is what makes the upper rooms very hot in the summer evenings), and it also brings cool air into the house. It also creates a gentle cooling breeze throughout the house.

Jillian, playing a beautiful Vanna, is displaying the fan as it arrived at our house. Our oldest son, Jonathan, is showing the fan after he helped me mount it (taking all of five minutes). Below is me looking through the hole I cut in our ceiling, and then there's a photo of what it looks like in our attic installed. Eazy Peezy, and we're looking forward to a cooler upstairs than we could have with AC--and much MUCH lower use of electricity!
UPDATE: Yesterday was the first really hot day since I installed it, and it was the first hot day (ever in this house) that we went to bed with cool (upstairs) bedrooms. Get this--the other times we were using our central AC, and this time we were not. So compared to our AC, this worked better (and it has a timer switch, so it runs for a few hours after we went to bed, but turned off--so it would not get too cold). I ran it again this morning for an hour, then shut up the house, and it's staying cool. I'll run it again this evening around 8 or 9pm, when it cools down outside.