Editor's Notes & Price Research
Running at 250W and moving over 3013 CFM, it is energy efficient and more than powerful enough to help cool and ventilate any residential attic. With an included programmable thermostat, it makes it easier to control temperature settings
if you have some DIY ability and don't want to pay $799+ for a quietcool whole house fan you can get this gable fan made by quietcool and make your own whole house fan for less than half the cost
get this quietcool gable fan here on ebay
QC Manufacturing Inc. AFG PRO-3.0 QuietCool 3013 CFM Professional Attic Gable Fan
get 20% from the seller automatically
stack another 20% using C20LABORDAY
Item (1) $200.83
Sales tax $10.04
Gift cards, coupons -$32.13
Order total $138.57 ($128.53 plus tax)
buy 16"-18" flexible duct
you will need some misc parts depending on how you want the fan setup
some videos of people DIYing their whole house fan
That warns about the drawbacks/problems with these.
What's fascinating is that the house we own had three powered attic fans installed. A few years ago I was running two of them. I then found out that we were having hot water heater backdraft issues: there was so much pressure pulling air out of the attic that the hot water heater vent (hot water heater is in the basement) was an easy source of air - so cool air was getting pulled out of the basement. I would assume air was also being pulled out of the upstairs - especially considering we also have a whole house fan with a grill and air could be pulled from that.
Lately I've been running one powered attic fan but I'm wondering if I need to try shutting that down...