I installed this attic fan few days ago – installation, including cutting the new hole and adding a few new shingles to ensure a water tight install took less than two hours. We’ve had awful problems with the heat coming down from the attic of our 100 year old home and making our second floor unusable. Both of our offices are on the second floor and we work from home, so living in the swamp that is Washington, DC – we often work from the living room in the summer.
The first day after installing this, the temperature on our second floor dropped by ten degrees. The attic is a little under 900 sq. ft. and had awful insulation – with some areas having none at all. Today we installed 21 inches of AttiCat blown-in fiberglass insulation. Between the two, I expect our electric bill will drop quickly and out second floor will be as comfortable, if not more than our first.
The fan is working so well, I am considering adding one to the bump out on the back of the house that has an inaccessible attic space.
Amazing temperature drop in the second floor of our home.