Solar Attic Fan Does It Work

Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans.

Solar attic fan does it work. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. The attic fan just helps the air move more which adds cooler air circulation. Solar attic fans in. The sun beats down on the roof surface and heats up the stagnant air inside the attic.

Set your store to see local availability view similar in stock. Master flow 500 cfm solar powered roof mount exhaust fan model prsolar 221 00 221. Solar power is safer to use with an attic fan. Solar attic fans work with your existing passive vents.

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. Of attic and expels hot air from the attic quickly replacing it with cooler air from outside. Attic fans exhaust hot air from your attic to the outside. As result stale warm air is vented out giving more room for fresh cool air also known as air exchange your attic should never be hotter than 10 25 above the outside air temperature in the summer time.

Even if you install it yourself and take the tax credit it could still take you 15 years or. This is basically how air naturally moves. If you ve ever been in your attic you know just hot the space can get especially in summer months. How an attic fan works.

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. Building codes require homes to have a passive vent system. Solar attic fans work by pulling in the cold air from the soffits and pushing out the hot air that has accumulated at the top of the attic.

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. A solar attic fan ideally delivers up to 400 cfm of venting power per 1000 sq. 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. But they re much easier to install since no wiring is needed.

But passive ventilation does not. Ventamatic 433 cfm weathered gray galvanized steel solar powered attic fan with adjustable solar panels model vxsoldomwgups 312 66 312 66. The safety and effectiveness of an attic fan is a subject that is hotly debated but line powered products usually cost more to operate than they can produce in savings during the summer. Out of stock online.

How does a solar powered attic fan work. Solar attic fans can be installed in just 15 minutes. A solar powered attic fan provides constant steady air flow throughout your attic.