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Your cart is empty.Product Description
Features
Durable
Made of high quality of aluminum and stainless steel material for durability.
No Electric Power Needed&Automatic
Solar energy sourced, no operating cost.Automatically open or close the greenhouse vents as temperature rises or drops.
Overheating Protection
This automatic window opener will help you maintaining the best growing temperature and prevent your greenhouse from overheating.
Double Springs
Two springs are more strong and better withstand Wind.
Strong Force
Lifts up to 15.4Lbs(7kgs),suitable for most of greenhouse window and vent.
Easy installation
Comes with a fitting accessory pack and a detailed manual for easy installation.
Working Condition
- The start open temperature can be adjusted from 15℃ to 25℃(59℉ to 77℉).(Adjust:Rotate the cylinder clockwise to lower the open temperature or anticlockwise to increase open temperature.)
- When the temperature reaches 30℃ ( 86℉ ) or above, the window will be fully opened
- The maximum open distance, from window sill to bottom rail, is about 45cm (18”)
- Maximum weight of the window is 7kgs (15.4 lbs).
Storage&Maintenance
- All moving parts need to be lubricated after installation. Occasional lubricate is recommended.
- Please take off the cylinder from the opener when the window is not to be opened such as during winter time, to avoid any accident opening due to warm up climate.
- Lubricate and check the piston rod, make sure it can work smoothly if there is long time no work.
- The vent opener should be stored at a cool and dry place.
Beth Bailey
2025-09-03 12:31:47
The directions aren’t very clear so we watched a few YouTube videos and then it was easy.. I have a harbor freight greenhouse and some drilling thru the windows frame to anchor needed to be done .. it’s best to have the piston as retracted as possible and it being simmer I put mine in a jar of ice and then you can press the piston as far in as it goes .. then attach it to the mechanism .. use self tapping screws vs the straight screws that comes with it .. once in they work awesome!!
Jimmy
2025-08-27 21:16:41
Works great
Creditman
2025-07-30 17:21:12
It takes a bit of guessing to get the unit attached correctly. But the brackets actually did line up with the holes from the original vent brackets. So it's installed and now I have to wait to see how far it opens, and if it closes correctly tonight!So it's been installed now for a few weeks and it works great. It opens the vent at around 70 degrees. If it reaches 80 inside the greenhouse, the vent opens fully. Otherwise it seems that the opening is directly proportional to the temperature. As soon as the temperature drops down below 70, the vent closes up tight. I think it is actually closed much tighter than before it was installed.It really helps to regulate the greenhouse temperature. I realize now, however, that it would have been better to have a greenhouse with a vent on each side to really get the heat out. But that's another issue.
wendy kidder
2025-07-21 12:03:17
opens and closes the vent on my greenhouse as advertised. not sure why some are saying it doesn't work properly.
KP
2025-07-19 16:15:20
I bought this to install on a Palram Canoipa greenhouse. I had to make all sorts of modifications to make it attach and fit, all for naught. The lower bracket on this unit really prefers to be mounted vertically, not at an angle. The way the Canopia frame is made that the lower bracket of opener would install to, the opener bends the frame. When at rest the bracket was in a bind and when it finally moved to open, it was like and explosion and it went straight to full open, again, bending the greenhouse frame. Trying to save a few bucks over the Palram unit that's made to fit, just cost me the price of this opener in addition to the Palram. I should have known better. Oh well.
dwayne reeves
2025-05-19 11:28:34
I highly recommend this product. The piston operates as the temp changes to open or close my greenhouse windows. Excellent!
Etienne Mabbitt
2025-04-19 17:29:49
Everything works everything works fine just minor adjustments had no problem.
KC
2025-04-05 18:44:25
Incorrect advertising… instead of 33lb lift, the box indicates 7kg (i.e. 15.4lb) only.
Jonah Janzen
2025-03-16 16:46:31
First summer and it worked flawlessly on my 8x8 greenhouse with a 4x2 roof vent.
Alexey
2025-01-31 13:35:51
Installation for my aluminum frame greenhouse required some DIY brackets and cutting of the frame. Spent several hours on this. After installing works well: sensitive to the temperature change and has great opening at maximum range.
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