Do Solar Attic Fans Save Money. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. Depending on what your utility charges that s about 40 per year. The only time i would ever use an attic fan is if i had a roof that was unusually difficult to vent passively.
Meanwhile solar attic fans are free to run lower your electric bills and have few costs beyond purchase and installation. For example if you had a hip roof.
Larger homes that need larger a c units can save even more.
Let s assume that you have a supertight house and no. The attic fan just helps the air move more which adds cooler air circulation. Attic fans cool the attic which helps cool the rooms just under it. Depending on what your utility charges that s about 40 per year.
