Attic Heat Fans

Quietcool smart 2830 cfm power gable mount attic fan at amazon this model is our top pick for its ease of use simple installation and maximum energy efficiency best budget.

Attic heat fans.

It will help to keep the attic much cooler in the summertime. An attic fan can reduce the heat in your roof space by between 40 f and 50 f. Thanks for some very informative posts by all. Trying to solve the heat gain problem in your attic by using a fan is like lying out at the beach with a fan blowing over you and thinking you re not.

Your attic can reach temperatures of up to 150 ºf which can destroy the integrity of your home as well as completely destroy your roof. During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly. Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor. But by adding powered attic fans you will draw more air into the attic.

Your air conditioner doesn t have to work so hard to keep your house cool so it helps reduce your electricity bill. That is a new one on me. This has a knock on effect. The downside of attic ventilation fans.

Good insulation reduces fan effectiveness. However the utility of attic ventilation fans is actually quite a controversial topic. Iliving 800 cfm shutter exhaust fan at amazon this fan can easily remove excess heat moisture and odor from any space up to 1 200 square feet. Cheaper fans with plastic components may begin to fail over time under these.

There was one large flaw with the fan though while the large fan duct was insulated and it had a damper on the end that exhausted to the attic the heat build up in the attic caused heat to flow back into the house and would noticeably warm the house during the day. Lastly i am curious about the recommendation on your blog to reverse the ceiling fans to decrease the radiant heat transmitted from the attic through the ceiling. Your attic fan must be built from material sturdy enough to survive the excessive heat that can build up in an attic. The thermostat will usually start at 95 degrees fahrenheit which is the temperature that the attic fan usually starts at.

Using insulation only keeps the attic s heat from traveling through your home. Much of that heat then conducts downward and finds its way into the house. Solar attic fans work by using sunlight to power the fan s motor to help prevent any heat or moisture build up in your attic.