Agriculture Solutions Liberty Automatic Louver Window Opener - Lifts 55 Lbs

I paired this Liberty Automatic Louver Window Opener with an Exaco Trading G7014 Louvre Window for Bio-Star Pioneer Greenhouses into my home-built greenhouse (both purchased through Amazon). I didn't install it til December and in Kentucky 2013 it was already cold. We did have a couple warm days where I was able to see it operate; and this necessitated adjustments. Since my greenhouse was created by myself I had to create my own vent window, so much of my tweaking of the automatic opener was due to trying to get the window vent correctly framed in my greenhouse design. It wasn't until we had a couple "Polar Vortexes" weather patterns in our area that I got the opener to properly orchestrate the opening and closing of the vent blades in the window. Of course it was cold for so long that I didn't get to see the automatic opener in action until a rare "warmer" February day. It is now early April and I can see the opener\vent is working "as advertised". I can hear the springs adjusting the vents as I work outside in my back yard on some raised beds I am constructing. It's a good sound. So far this automatic window vent opener is doing great! I hope it continues to do so!EDIT: 6/2/2014 - Still working like a champ!

The directions leave a little to be desired. How exactly does it attach and can it be attached to a vent in the middle or not. Now seeminly restricted to a side manuevering vent slants. Hard to find at a price I can afford, would be cool to be told what window would be best with the product mentioned in said instructions. Am sure once I find the vent, it will work famously. Thank you for having it at a price I could afford.

I use two of the pistons without the other hardware to lift open my battery box lid to vent them when it is hot. I tried it with just one and it lifted the hinged lid which is 8ft by 2ft 1/2" plywood with metal roofing on top. Tested it with her hair dryer and it lifted the lid! So I added another and also added some springs to help them. We recently had our first hot day and the lid had opened about an inch and a half. They are sturdy and very well made.

Easy to install. I had to drill out the rivet holding the handle. The mounting holes lined up with the new bracket so no drilling there. I did add an extra screw for added support. Works just fine.

It installed easy and works great. the toughest part of the job was removing the manual opener (it was riveted on)It is nice not to have to go out and open the louvers in the morning and then go back out and close them before the freeze set in overnight.

This is a great little devise. The stroke is about 1" total which is perfect for opening louvers. I am good a welding and fabricating so it was easy for me to make a fixture to mount it. Its spring loaded closed, and the piston over powers the springs to open it. The piston creates a lot of force which is nice.

Excellent device works very well and easy to fit

I had to rig a handle to connect it to my Louvre handle and it works well. It opens the louvres at between 73 and 75 degrees every time and closes tightly.