Are Solar Attic Fans Effective

The downside of attic ventilation fans.

Are solar attic fans effective.

In summer temperatures can reach up to 160 degrees fahrenheit or above. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. It can be installed easily on pitched fibreglass asphalt shingle roofs. 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.

However the utility of attic ventilation fans is actually quite a controversial topic. Brand name deleted by editor solar attic fans are no. Also the solar attic fan can help you save up on electrical bills. Solar attic fans are easily managed and fixed and a great product for proper attic ventilation.

1 by builders and are the highest attribute made in the usa. But they re much easier to install since no wiring is needed. Solar power is safer to use with an attic fan. The hardware is included for installation no wiring is required.

An attic fan can be used temporarily during the summer to decrease the electric bill but it won t be the best option in the long run. Attic ventilation fans work best if the attic floor is thoroughly sealed hvac equipment is well insulated and sealed and attic insulation is less than r 19. Other arguments for solar attic fans. Solar attic fan 36 watt with 25 year warranty florida rated by natural light.

Ad the infrared rays from the sun are powerful. Depending on what your utility charges that s about 40 per year. A solar attic fan is a simple and efficient way of adding a ventilation system in your home. This solar attic fan is the top rated highest quality attic fan.

With this you get to prevent moisture build up and thus protect and maintain your home. I have found other points that solar attic fans help keep attics cooler and therefore extend the life of your roofing shingles. However there is no statistical evidence of this being true. 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.

Arguments against solar attic fans. When it is most effective. The dc motor is powered by the included solar panel. Good insulation reduces fan effectiveness.

Now there are many articles that are against solar attic fans for many different. Even if you install it yourself and take the tax credit it could still take you 15 years or. 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. I am interested in replacing my effective but noisy whole house fan of 1970s vintage.