Do Solar Attic Fans Work. Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. Depending on what your utility charges that s about 40 per year. It helps to cool your home temperatures and the attic by approximately 30 degrees.
To determine the number of cubic feet per minute needed for a power vent fan multiply the number of square feet in your attic by 0 7. Good insulation reduces fan effectiveness.
You will probably need two solar attic fans to get the results you want.
If a cloud blocks the sunlight the fans slow or stop. Because solar attic fans operate with a lower power output they are unable to move as much air as some of the other options that are available. But they re much easier to install since no wiring is needed. You will probably need two solar attic fans to get the results you want.
