Attic Fan Are They Worth It

If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit.

Attic fan are they worth it.

This is a solar panel supplying free electricity to the attic fan under the silver dome on the rear roof. Of course if the attic fan isn t working correctly and is running all year long that would be a significant problem. The attic fans needs to have a minimum amount of makeup air or intake air which is the vent area that the attic fan pulls air from. Attic ventilation fans could be effective if your home has.

If there isn t enough venting in the attic for the attic fan to pull air from it will start pulling air from the home s interior through the wall cavities and drywall ceilings. It may be starting to sound like attic ventilation fans aren t worth the hassle and could cause more problems than they solve. Find out whether it is economical to run an attic fan. If the attic fan increases the comfort level of the house it may be worth it.

Instead of installing a fan just make sure your attic is well ventilated. However there are certain circumstances where they can prove useful. The fan blades spin but they don t lower the attic. Attic fans are not recommended if you have central air conditioning because when you turn the fan on in the summer it depressurizes the attic but also reaches down into your house and starts drawing off air conditioned air effectively driving up your cooling costs.

Often the property s hvac system duct work is routed through attic spaces which even though they are insulated to protect the house below will still get very hot when in the direct sun or the heat of high summer.