iLIVING 20" Wall Mounted Shutter Exhaust Fan, Automatic Shutter, with Thermostat and Variable Speed controller, 2.2A, 3368 CFM, 5000 SQF Coverage Area Silver (ILG8SF20V-ST)

Great fan. Very easy to install. My greenhouse is 8'x20' and it is the perfect size for this area.

I've had a solar roof fan in place for several years but the motors burnout on those and replacing them is neither cheap nor easy to do. Rather than buy a new motor and work on installing it so it can burnout 3 years from now, I went with this gable fan.The fan with thermostat was important for me as I don't have to think about turning it on and off whenever I think it's needed. I've set the fan to 95 degrees or so in my attic and it's kicking on/off as it should. I will be seeing how long the thermostat lasts. I'm hopeful, it's years.As one reviewer noted, the dampers are a little light. He placed tire balancing weights on the outside of his as you can see in his photo. I went with far less weights, though I don't know how heavy his were to begin with. They certainly look the same. I used a total of 4 and it's plenty. The dampers/louvres move up 3/4 of the way when the fan is on. If they do get blown up too often my winds, I can always take a ladder up and add a couple more.The entire setup was less than two hours. You time may be less or more depending on accessibility into your attic (mine is a full walkup attic), outlet location (I had to install my own), and your tools and know-how for things like this.I saw a few comments that it's noisy. I think the sound it omits is what a fan should omit. I did take the added step of not merely screwing the fan to the opening but also framing the metal edges with wood strips to both hold it in place and dampen potential rattles or reverberations. It's been working three days now with no sound issues.One item that should be given with this system is screws with washers to hold the fan in place when bolting it. Or, at least, the screw openings should have been smaller. I only received small screws with plastic wraps for securing the fan electrical cord to the walls to prevent it from potentially moving up into the fan or catching someone as they move past it. Not a deal breaker as I have tons of screws, washers, etc. to use.Bottomline:The thermostat is helpful and the fan has enough draw with no vibrating sounds if installed securely. The damper/louvers could be heavier but that's easily resolved with weights/magnets. It's doing its job and I expect it to keep my HVAC system under a lot less stress. Attics get very hot.

The fan does the job through brute force. It moves a lot of air, but much of it escapes out to the sides and blows back into the room. It is noisy. At low speeds, the louvers rattle and the motor emits a noticeable hum. Metal edges are sharp. Removing the blue plastic covering (not shown in illustrations) must be done carefully to avoid cuts.

Installed two of these fans in my greenhouse. Each set to turn on at a different temperature. Works great! The amount of air moved by these fans is phenomenal. Highly recommend. Just make sure you can pull fresh air in from the outside. Can’t move more hot air than can be replaced by fresh cool air. Poor performance is usually the result of poor fresh air ventilation.

Used in an attached garage that is uncontrolled. In hot weather keeps temperatures down. Make sure you add some vents or it will air lock. Thermostat is great addition.

My husband purchased these to use on our new greenhouse. The thermostat settings allow it to turn on as temps Get too high and the air circulation is greatly improved. Please do generate a bit of noise, as should be expected, but you can still work close by and have a conversation with them running.We do recommend this product.

Shipped on time, works great.

Bought this for our chicken coop.It installs easily and works well.My only complaint is it is a little noisy.The luvers rattle .... not a deal breaker by any means as it's in a chicken coop. And it works better than the cheap 20 in. fans we have used for years ( have to replace them every 5-6 years). Seens to be of good quality. Only time will tell how durable it is.