Does My House Have An Attic Fan

The downside of attic ventilation fans.

Does my house have an attic fan.

My apologies for using the rather vague term power ventilation in my post. The point here is that if you have a hot attic space it is going to shorten the life of any equipment residing there. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows. The whole house fans takes hot air from the house and moves it up into the attic and out through the attic vents.

A whole house fan is different than an attic fan. A powered attic ventilator has a different purpose. You use it as an exhaust fan in conjunction with opening the windows of your home to pull a breeze through your entire home. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.

Unlike a ventilation fan a whole house fan an attic mounted fan that exhausts air from a home at night is designed to cool a house that is to lower the indoor temperature. Good insulation reduces fan effectiveness. However the utility of attic ventilation fans is actually quite a controversial topic. Attic fans do cool down a house in less than an hour.

This is why an attic fan will help ventilate the attic and bring in cool air. Whole house fans need windows and doors open and attic fans need lots of soffit vents to suck cooler outdoor air up into the hot attic. Noticed one of the attic vents was not working. It is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air.

Essentially i do have a whole house fan but because of the rube goldberginess of my set up i was hoping to avoid full disclosure. Whole house fans work on the principle of removing the hot and humid air out of the house. 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. 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.

It helps to cool your home temperatures and the attic by approximately 30 degrees. A whole house fan is typically installed in the ceiling to your attic not in your roof. Without this open space the fans will not move much air. Things have been ok low energy bills house very comfortable.

Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat.