However the utility of attic ventilation fans is actually quite a controversial topic.
Are solar attic fans worth it.
Energy star rated solar attic fans still qualify for a federal tax credit of 30 percent of your purchase and installation costs.
Ad the infrared rays from the sun are powerful.
Solar power is safer to use with an attic fan.
Also adding more penetrations to your roof is cause for more roof maintenance and potential roof leaks.
If your attic space is over 1 800 square feet you will need enough solar fans to move 8 000 cfm.
There are too many different ways you can better insulate your home to avoid energy loss.
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.
Intense sunlight can create heat faster than one or two small fans can cool an area.
They also create zones of negative pressure that could pull the ac cooled air into the attic.
But you ll likely need two fans to make an impact says danny.
You need that amount of air if not more to get any sort of cooling benefit from the fans.
One of those now in demand in this category is the natural light solar attic fan.
The downside of attic ventilation fans.
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.
Good insulation reduces fan effectiveness.
Attic ventilation fans help keep your attic cool by pushing out hot air inside the attic.
Solar attic fans are they worth it the short answer is it depends.
This attic fan which is a 36w model is big time in benefits to offer.
They can help in saving energy cost for every household.
With or without a thermostat these attic fans are valuable additions to any home or property.
A florida study found that installing two solar attic fans in a house just over 1 000 square feet saved about 460 kwh which amounts to about 50 per year.
Depending on how much you paid for your system it could take more than 10 years to recoup your cost.
Many solar fan companies say the cost can be recouped in 1 2 years however.
My belief is solar attic fans are not worth it.
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.