Does An Attic Venolation Fan Help Cool A House

A whole house fan can be run from early evening to early morning effectively cooling the structure of your home using the cool free outside air.

Does an attic venolation fan help cool a house.

Buy the way my attic area is about 750 800 sf. 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. Attic fans and whole house fans together can help with home ventilation but they serve different purposes. Whole house fans work on the principle of removing the hot and humid air out of the house.

Things have been ok low energy bills house very comfortable. Noticed one of the attic vents was not working. Install an attic fan. I can get a roof mounted power attic vent fan that is 1400 1600 cfm.

The whole house fan is installed inside the attic between the living space and ceiling. But asking if i could use a roof mounted attic power vent fan. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows. I was not asking about whole house fans.

The downside of attic ventilation fans. Adding an attic fan can improve the airflow in your attic to keep it cool. It provides good attic ventilation in addition to whole house cooling. However the utility of attic ventilation fans is actually quite a controversial topic.

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 home. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic. When combined however they form a perfect union. Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.

Three years ago i wrote an article titled don t let your attic suck power attic ventilators are a bad idea nearly a hundred thousand page views and 93 comments later it s still generating lots of heat. It helps to cool your home temperatures and the attic by approximately 30 degrees. And use a set of the shutters like used with whole house fans. Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.

Good insulation reduces fan effectiveness. The result is a cooler attic space with plenty of air exchange. And get the same effect as a whfan like my fathers house. I don t know why so many people are so defensive about power attic ventilators but here are a few of the things they ve said to me in the comments.