Shopping Cart

Your cart is empty.

Your cart is empty.

Greenhouse Automatic Window Opener Solar Heat Sensitive Auto Vent Opener Automatic Roof Vent Opener Agricultural Greenhouse Window Lifter Autovent Kit Lifts 15 Lbs(Single Spring)

Free shipping on orders over $29.99

$23.69

$ 10 .99 $10.99

In Stock
  • ✿【Premium Quality】-- This Automatic Window Opener is made of quality built anodised aluminium.The paint spraying aluminum frame looks more lustrous, durable and rust-proof.
  • ✿【Greenhouse Automatic Vent Opener】-- As the temperature changes,This auto thermo for window will automatically open and close your garden greenhouse vent to maintains the best growing temperature and prevents your greenhouse from overheating.
  • ✿【Environmental friendly】-- Non electric, uses solar energy,open or close the greenhouse window as temperature rises or drops. This solar heat sensitive auto vent opener can lift up to 15 lbs. The cylinder closes well before deep freezing and opens again without problem.
  • ✿【Working Conditions】--Start opening at 15°C-25°C (59-77°F);Fully open temperature at 30° (86°F) or above;Full opening distance :45 cm (18 inches).The greenhouse automatic roof vent opener kit will shut down completely when the temperature drops to bellow 59°F (15°C).Up to Load Capacity:7-15kgs(15-33lbs).
  • ✿【Warm Tips】-- Do not use this automatic roof vent Opener lifts anywhere the temperature will exceed 45° (122F).


Greenhouse Automatic Window Opener Solar Heat Sensitive Greenhouse Window Roof Vent Opener Single Spring Window Opener Garden Auto Vent Opener Tools Kit for Greenhouse Accessories Features: Prevent greenhouse overheating. Ideal for your greenhouse window opens and closes your greenhouse window. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating. Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. Can be clamped onto or screwed onto your greenhouse frame. Specifications: Material: Aluminum Alloy Fully adjustable between 20 - 25 Degree C (68 - 77 Degree F) Maximum window opening: 45cm 18 inch Maximum opening weight: 7kg15lb Size: Approx. 38x9.5x5cm 15.0x3.7x2.0in Package: 1 x Automatic Window Opener Kit Notes: With the automatic window openers, you can be sure of an even temperature in your greenhouse day and night.they allow thermostatic ventilation control through the roof windows of your greenhouse. It needs to put the cylinder in the refrigerator for a period of time (half an hour is enough) before the cylinder screw into cylinder housing. Do not use this opener anywhere the temperature will exceed 50 Degree (122F) Please ensure your greenhouse window can be opened freely by at least 45cm (18 inch ) Do not apply excessive loads by locking or covering window Do not dismantle the cylinder The opener CANNOT be stoped by manual Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.


JW
Reviewed in the United States on August 14, 2024
one out of two arrived broken. Thought I had initiated a return but for some reason it didn't go through. Now I'm stuck with broken junk.
Frank
Reviewed in the United States on July 8, 2024
This is an exact match for the one I replaced. I had to replace because my green houses fans went out and temp got way too hot. Too hot will break the lifter! Beware of hot temperatures they will destroy these. Price is good and they work under the right conditions.
Leah
Reviewed in the United States on July 3, 2024
These instructions were incredibly hard to follow and I had extra parts and it was all unclear. Fingers crossed it works as described...
Josh
Reviewed in the United States on December 25, 2024
Took a little while to fully grasp how they were meant to be mounted. But once I got them installed they work great!
ppinky143
Reviewed in the United States on October 11, 2024
It stated that the window would slide into place and stay. Not true. I went to the hardware store and bought a door strip cut it and screwed it in.Extra work but done.
chili lover
Reviewed in the United States on August 5, 2023
Our greenhouse window hinges bent after a huge windstorm came through. This replacement works. It was easy to install. Kind of like set it and forget it, until winter, when we remove it for the winter.
adhilde
Reviewed in the United States on April 17, 2023
I got this in the winter so my greenhouse would be ready in the spring. Come to find out, when my green house gets hot (95F) and above, this does not work.I am outside the return window as I got this back in December and it is now April. I really need my window to open to help vent the extreme temperatures out, but this unit just won't extend. Short of placing this in an oven at 170F, I am not sure how to test this when purchased in the winter.The concept is cool though. I only wish it worked. And maybe they do work... just not the one I bought.
C Squires
Reviewed in the United States on February 24, 2022
Got a inexpensive greenhouse for free a few years back and learned about these last year. Purchased one last fall to see if they would work, and it did fantastic so bought a second one for the other window. We were able to adjust it to open at a specific temperature. It still amazes me how simple it is and how great it works. Just need to remove the cylinder in the winter to extend its life.
Recommended Products

$59.14

$ 30 .99 $30.99

4.3
Select Option