How Much Does An Attic Fan Help

The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.

How much does an attic fan help.

When an attic fan is operating during the hottest summer days the temperature in your attic can drop by as much as 50 degrees. If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit. Help your roof out. They also create zones of negative pressure that could pull the ac cooled air into the attic.

It helps to cool your home temperatures and the attic by approximately 30 degrees. The whole house fan is installed inside the attic between the living space and ceiling. 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. Even if it only ran late afternoon at the peak of heat until the sun set.

I feel like i m in a greenhouse. We have an exhaust fan in the bathroom but it doesn t do much of anything. There are a number of reasons. Getting ready in that bathroom is unbearable.

If the attic fan increases the comfort level of the house it may be worth it. The downside of attic ventilation fans. Of course if the attic fan isn t working correctly and is running all year long that would be a significant problem. How an attic fan works.

Solar power is safer to use with an attic fan. Do not use mechanical means electric attic fans. Good insulation reduces fan effectiveness. 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.

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. This makes your whole home cooler and could allow you to turn up your air conditioner s thermostat by as much as 10 degrees while still maintaining your comfort. As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in. 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.

However the utility of attic ventilation fans is actually quite a controversial topic. The safety and effectiveness of an attic fan is a subject that is hotly debated but line powered products usually cost more to operate than they can produce in savings during the summer. I always thought a solar attic roof fan would help remove some of the heat in our second floor. Whole house fans work on the principle of removing the hot and humid air out of the house.

Attic fans exhaust hot air from your attic to the outside.