Do Solar Attic Fans Work On Cloudy Days

Danny s tests of solar attic fans showed that in florida where there s abundant solar energy yearly savings from installing two fans in a house with just over 1 000 square feet of air conditioned floor area amounted to only 460 kwh.

Do solar attic fans work on cloudy days.

These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home. Depending on what your utility charges that s about 40 per year. Our solar attic fans are designed to work the hardest when you need them the most. Solar attic fans require direct sunlight to operate.

How an attic fan works. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. You might find that some solar attic fans only push around the hot and humid air in your space instead of exhausting it. Although there are a lot of factors to consider before installing it can function well.

On cloudy days the fan will receive less sunlight and will move more slowly on rainy days the fan will not move at all. Do solar attic fans work on cloudy days. If a cloud blocks the sunlight the fans slow or stop. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.

Drifting clouds can prevent the fan s operation. That means you re paying for the equipment without really getting the benefits that you need to improve your storage space. On cloudy days you don t need to run an attic fan and with solar attic fans you only access the energy you need on the days you need it most the hottest sunniest days of the year with no added expense. Even if you install it yourself and take the tax credit it could still take you 15 years or.

The more direct sunlight the fan receives the faster the fan moves air. 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. For the attic fans to work at peak efficiency they need to be on a south facing roof slope if you live in the northern hemisphere. They assisted a lot in creating a comfortable environment at home.

The attic fan can work with the modern air conditioning unit but only if you are in a closed room. These fans are also maintenance free and easy to install and maintain. But they re much easier to install since no wiring is needed.