QuietCool AFG SMT-3.0 Smart Attic Gable Fan

Awesome Fan! Which I had this fan when I first moved in 12 years ago. Living in south Texas, my attic temp will reach 140 degrees + in the summer time. The central A/C would struggle to keep the house cool in 100+ degree days and would run constantly during the day on my older home. You could put your hand on the ceiling and fell the heat radiating down into the living areas make the A/C work overtime. I have a vent at each end of my roof gable and I decided to purchase this smart attic fan and I am so glad I did. I had to build a box around the north vent because of a 2x4 running down in the center of the vent. Built the box for the fan to set in to direct the air out of the attic and draining the air from the south. Sealed everything with silicone caulking around the gable. Used heating waterproof 3M tap around all cracks and around the fan itself. Fan was plug and play. Definitely set it up on the app BEFORE you mount it in your attic. Now the fan has been running a month now with no issues. My A/C will actually shut off during the heat of the day and I don’t feel the radiant heat from the ceiling. Attic temp is about 128 degrees on a hot 104 degree day. This is a big improvement. I put a wireless thermometer in my attic in the center of my 2500 square-foot home to get a temperature reading and compared to the fan at the north end of my home. Fan is super quiet, it is mounted above my bedroom and I don’t hear it at all. Like the three speeds you can set at what temperature you want to come on with the app. I set mine to come on low at 85 degrees, Medium at 95 degrees, and high at 105 degrees. I tried setting it 5 degrees higher on each and it actually made the fan run longer. Will update as the summer goes on.

Works great

This is a remove and replace of an older & smaller attic fan. Quietcool was easy to install, great value for the money, larger size which will move more hot air out of the attic and outside where it belongs. The high-speed setting will move a considerable volume of air, and I am pleased with the warranty; it proves that the manufacturer is quality motivated. It is too bad this unit will be up in an attic space where it cannot be seen as it has an attractive appearance. This is a Smart unit and has an app to control various user preferences for the fan lending to its versatility compared to other attic fans and especially the fan I replaced. I am pleased with my purchase of this fan as it checks all of my boxes for energy savings, return on investment as it will reduce my AC costs, the attic will not be a sauna during the hot/humid NC summers, and it will improve the air quality in the attic with circulating air.

I'm very pleased with this fan. It is definitely the expensive model for the category but I already think the value is there. The fan moves a lot of air. While it didn't state the "square footage" on product listing, on the box it says 4000 sq. ft. For me, it's in the attic of a 1930s vintage 1900 sq. ft. house, so it should be able to turn the air over rapidly and without effort - the 3-speed design of this one is especially appealing to me. We live in the deep south on the humid Gulf Coast. The best investment I've made in keeping the house comfortable in the summer was a light-colored metal roof. Even still, the attic isn't a place to be during July or August, so this will keep air moving. Installation was surprisingly simple. It helps that my vents were proper 16" with double 2x4 frames, which matched the fan design perfectly. The little black borders zipped right in, too. The control panel came properly pre-wired with a nice gauge, 20' 3-prong extension cord and I already had an outlet in the attic -- like it was meant to be. The test cycle went perfectly; bluetooth connection was seamless; from underneath the fan in the living room, I could still easily communicate with it. I've set the summer mode and should be ready to roll once the next warm front comes in. With it all said and done, I'm glad to have sprung for this model; hoping I never have to think about it for the next 2 decades....

I love it--because it's quiet, because it keeps my a/c from struggling, and because I can unplug it anytime (no electrician needed!) Finally, the window unit upstairs can cool the room to 72 degrees even when it's above 90 outside. Before installing this fan, the little window unit could only cool the room to around 86. Our attic really was a heat trap, and it would radiate that heat to our house all night long. I didn't even have this fan installed properly (by sealing off the vent around the fan) and it still works great. We had a roof-mounted ventilator years ago, which kept the upstairs cooler and the electric bill lower, but the motor eventually burned out. I like this fan much better; it's kind of heavy to drag up in the attic, but after a simple installation, there are no cons that I can think of. It really is quiet-- I stuck my head up in the attic to look at it, and wouldn't have known it was running if I hadn't seen the blades turning. Another great idea is the varying fan speeds.. they keep pace with the attic temperature. I'm not sure yet if I will like the fan turning on whenever the humidity is above 60 percent. The outdoor humidity is above 50 pretty much all summer long here. I'm just glad I can unplug it if I don't like it! EDIT July 1st: I do unplug it on cloudy days (when it is running on low because of our high humidity) because I enjoy the house being very quiet. I probably would not hear the hum of this thing if I had installed it properly. I have it plugged into an outlet in a bedroom, so it's very simple to go unplug it.