I bought two exhaust/intake shutters, Belimo shutter motors, and SureStat TS110 controls. The shutters were a bit sticky to open due to the mfgr's cutting and bending at the leading edges/corners of the louvers where they overlap (shutters were slightly catching on each other) Dayton could give that a bit more attention, but it was easily fixed with a pair of pliers. The motors mounted easily, but again the alignment of the shutter's center connecting bar was off due to irregular forming and needed tweaking to operate smoothly. Once assembled and wired, everything worked as expected. Like magic, intake ventilation in my greenhouse is greatly improved. Now onto my exhaust challenges.

Just installed the system and so far— it seems to be exactly what we needed for this 12x16 greenhouse here in Louisiana.

We will follow up once everything is up and running.

I needed something for the intake side of my greenhouse, to allow air flow in when the exhaust fan on the other side runs. These work very well and were easy to install. They appear to be sturdy and high quality, looking forward to seeing how they hold up in our greenhouse!

This replaced a PVC shutter and motor that was part of a kit. Installation was a bit tricky because the opening was a bit too large but easily expanded with an aluminum strip. The motor install was super simple and the whole system works beautifully.

The shutter we bought has not been installed yet, but looks to be well made and operates smoothly. I like the weatherstripped bottom edges of each fin; it seems like it will help seal out the wind.