Are Solar Attic Fans Effective

A solar attic fan is a simple and efficient way of adding a ventilation system in your home.

Are solar attic fans effective.

But they re much easier to install since no wiring is needed. 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. 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. 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.

Even if you install it yourself and take the tax credit it could still take you 15 years or. 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. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. Solar attic fan 36 watt with 25 year warranty florida rated by natural light.

This solar attic fan is the top rated highest quality attic fan. I am interested in replacing my effective but noisy whole house fan of 1970s vintage. I spent some time researching the. Also the solar attic fan can help you save up on electrical bills.

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. Other arguments for solar attic fans. Ad the infrared rays from the sun are powerful. It can be installed easily on pitched fibreglass asphalt shingle roofs.

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

However the utility of attic ventilation fans is actually quite a controversial topic. 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. Now there are many articles that are against solar attic fans for many different. In summer temperatures can reach up to 160 degrees fahrenheit or above.

Arguments against solar attic fans. Good insulation reduces fan effectiveness. The dc motor is powered by the included solar panel. Solar power is safer to use with an attic fan.

When it is most effective. Depending on what your utility charges that s about 40 per year. Brand name deleted by editor solar attic fans are no. 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.