How Does An Attic Fan Work

The whole house fan pulls air in from open windows and exhausts it through the attic and roof.

How does an attic fan work. How whole house fans work. Whole house fans work on the principle of removing the hot and humid air out of the house. Of attic and expels hot air from the attic quickly replacing it with cooler air from outside. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner.

Solar attic fans in. Attic fans work on the principle of pushing out the attic s hot air and replacing it with cool air from outside. Once the solar powered attic fan is up on the roof the sun works its magic to power the fan. The whole house fan is installed inside the attic between the living space and ceiling.

There are several different types of attic ventilation systems but most of them feature small vents soffit and gable which draw in cool air along with a primary fan that pushes air outside. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows. How an attic fan works.

A solar attic fan ideally delivers up to 400 cfm of venting power per 1000 sq. These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. As the attic fan draws outdoor air into the attic it vents hot stale air out through attached dormers.

Whole house fans should provide houses with 3 to 6 air changes per hour varies with climate floor plan etc check with a professional to determine. It helps to cool your home temperatures and the attic by approximately 30 degrees. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. An attic fan pulls air into the attic from the outdoors using the soffit vents you should already have installed in the eaves.

How does an attic fan work. Attic fan ventilation attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. It provides good attic ventilation in addition to whole house cooling. Solar attic fans can be installed in just 15 minutes.