I have a 12x40 self built greenhouse and it gets REALLY hot. The fans were a VERY LATE after thought! LOL I will need to modify the greenhouse to accommodate the fans. This is MY design flaw...NOT the fans. (First time building anything like that). For now, I have placed one on the floor at the East end of the greenhouse sucking air in and the other one is elevated at the other end blowing air out. They knock the temperature down 20-30 degrees.

I finally got a chance to install my 16" fan in my metal building. Instructions and installation was quite easy.The fan and louvers work perfectly and it really pulls some air.I have been wanting to do this for a while and am glad finally did it.I couldn't be happier with your fine product. Thanks!

 

The exhaust fan was exactly as described. It runs quietly with no vibration and decent output. The 4 stars was given because the louver door has a gap when closed. This is large enough for insects to enter.

Informative people, fast service and shipping. And the products are top quality.

This was easy to install and works perfectly...my fan starts when the greenhouse reaches the time set. Highly recommend .