Attic Heat Fans

The downside of attic ventilation fans.

Attic heat fans.

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. An attic fan can reduce the heat in your roof space by between 40 f and 50 f. That is a new one on me. 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.

Good insulation reduces fan effectiveness. They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling. Ventilation fans or powered attic ventilators are designed to cool the attic pushing out the hot attic air and rushing in a flow of cool outside air. Thanks for some very informative posts by all.

This has a knock on effect. 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 fan must be built from material sturdy enough to survive the excessive heat that can build up in an attic. Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat.

Cheaper fans with plastic components may begin to fail over time under these. Your air conditioner doesn t have to work so hard to keep your house cool so it helps reduce your electricity bill. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure.

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. Much of that heat then conducts downward and finds its way into the house. They are typically easier to install and won t detract from the appearance of your roof.

Most fans cannot keep up.