Attic Heat Fans

During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure.

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. An attic fan can reduce the heat in your roof space by between 40 f and 50 f. Master flow egv5 gable mount attic ventilators are master flow egv5 gable mount attic ventilators are a great choice for exhaust ventilation. 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.

Thanks for some very informative posts by all. The downside of attic ventilation fans. 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. 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.

However the utility of attic ventilation fans is actually quite a controversial topic. Good insulation reduces fan effectiveness. 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.

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. Your air conditioner doesn t have to work so hard to keep your house cool so it helps reduce your electricity bill. 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. 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.

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. This has a knock on effect. 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. Most fans cannot keep up.

That is a new one on me.