Are Solar Attic Fans Effective

When it is most effective.

Are solar attic fans effective.

I am interested in replacing my effective but noisy whole house fan of 1970s vintage. Ad the infrared rays from the sun are powerful. However the utility of attic ventilation fans is actually quite a controversial topic. 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.

The downside of attic ventilation fans. 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. With this you get to prevent moisture build up and thus protect and maintain your home. In summer temperatures can reach up to 160 degrees fahrenheit or above.

I have found other points that solar attic fans help keep attics cooler and therefore extend the life of your roofing shingles. Solar attic fans are easily managed and fixed and a great product for proper attic ventilation. However there is no statistical evidence of this being true. Depending on what your utility charges that s about 40 per year.

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. It can be installed easily on pitched fibreglass asphalt shingle roofs. A solar attic fan is a simple and efficient way of adding a ventilation system in your home. Brand name deleted by editor solar attic fans are no.

Arguments against solar attic fans. But they re much easier to install since no wiring is needed. Now there are many articles that are against solar attic fans for many different. The solar attic fans all moved less than 1 000 cubic feet of air per minute cfm and they did nothing to lower the temperature inside my own attic.

Other arguments for solar attic fans. Even if you install it yourself and take the tax credit it could still take you 15 years or. 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. 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.

This solar attic fan is the top rated highest quality attic fan. 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. Solar attic fan 36 watt with 25 year warranty florida rated by natural light. Good insulation reduces fan effectiveness.

I spent some time researching the. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. Solar power is safer to use with an attic fan. The dc motor is powered by the included solar panel.