Attic Fan or save for A/C?

[XJ]

What they all said. We have both, and rarely run the AC. Keep in mid though, the attic/roof MUST have enough additional ventilation added to efficiently vent out the air that the fan will be pushing into the attic! A whole house fan moves a LOT of air, and it has to be able to get out or else you'll just pressurize the attic and kill the effect of the fan. Probably burn out the fan motor too.

This guy installed ours and the roof vents. http://www.colohomecool.com/?gclid=C...FQ4oaQodWqoAug

If you don't mind, what was the scope of work and ballpark cost?

[rondog]

If you don't mind, what was the scope of work and ballpark cost?

Been too many years, you'd have to call him. Installed fan, wiring, switch, and several large roof vents. Seems like it was ~$1800-ish. But all I had to do was write the check and enjoy the breeze.

[SideShow Bob]

There seems to be a lot of confusion here on what a attic fan and a whole house fan is.

An attic fan draws cooler air in from the soffit vent and exhausts hot air either though a roof vent or gabble vent, and only ventilates the hot air build up in the attic.

A whole house fan is mounted in the ceiling of the upper most level and draws cooler air from the house's windows, exhausts it into the attic and out a gabble vent or roof vents that needs to be sized to the CFM of the whole house fan.


http://www.airscapefans.com/learn-ab...attic-fans.php