I ordered this package to provide ventilation for my 14x24 foot greenhouse with polycarb panels. The components (shutters, motors, fan plus its louver grate) are all great quality, clearly meant to take a lot of use (and possibly abuse), and mount cleanly with some aluminum angle iron or 2x4 timber framing. One thing that wasn't apparent to me from the website is that the fan unit is VERY HEAVY due to its direct drive motor. This is something to consider, especially if you want to mount the unit high off the floor as recommended. If I did this again I'd use a rented cherry picker or scaffolding and not a ladder.

It was cooking in my greenhouse so I bought this system per ACF recommendation. I am no electrician but the detailed instructions (and help over the phone ;) helped me get everything done myself. It is like night and day with the fan running now. Thanks so much!