How Your Hous Attic Fan Works

It helps to cool your home temperatures and the attic by approximately 30 degrees.

How your hous attic fan works.

An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. It provides good attic ventilation in addition to whole house cooling. The whole house fan pulls air in from open windows and exhausts it through the attic and roof. 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.

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 what is appropriate for your. 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. Attic fans exhaust hot air from your attic to the outside. How an attic fan works.

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 the utility of attic ventilation fans is actually quite a controversial topic. The downside of attic ventilation fans. Because whole house fans were cheaper than air conditioners and worked well they began being used in the 1950s primarily in the south.

The whole house fan is installed inside the attic between the living space and ceiling. 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. Good insulation reduces fan effectiveness. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.