re: Attic Fan experience

A lot of calculations play into how much fan vs how many cubic feet of attic..But having said this we bought two the solar fans 8 years ago and had installed and they have been great. One other thing to check is warranty the ones I bought were made in Phoenix and had a lifetime parts warranty so when one of the fans slowed down the company was still in business and sent me a new motor to install. The installl was simple except I had to get a small extension ladder to get up to the fans....It was pretty easy removal and reinstall from inside of attic....Hope this helps..