Related Products
Product description
Suitable for Most Greenhouses
Up to 15 lbs load-bearing capacity, Buycitky automatic greenhouse window opener is suitable for most greenhouse.
How does it work? Does it require electricity?
It has paraffin wax in it that expands to open the cylinder as the temperature increases.When the fluid cools down it shrinks and the opposite happens. So It doesn’t require electricity.
Strong Force
Lift up to 15 lbs weight
Aluminum Alloy Bracket
Made of Aluminum and Zinc-coated steel, durable and anti-rust
Solar Heat Driven
Automatically open or close the greenhouse air vent.
Opening Temperature Adjustable
Rotate the cylinder to adjust opening temperature from 15℃ to 25℃( 59℉ to 77℉)
Note:
Buycitky Automatic Greenhouse window Opener
Cannot be used in an environment with a temperature higher than 122°F (50°C).Make sure that your greenhouse windows can be opened at least 11.81in (30cm).Because of the hot weather in summer, please put the cylinder in the refrigerator for half an hour before installing 
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Greenhouse Vent Automatic Opener
Greenhouse Window Opener – Perfect Fit for Most Greenhouses: Buycitky automatic greenhouse vent opener handles loads up to 15 lbs and opens windows a full 18 inches (45 cm) for maximum airflow. It glides open and seals tightly shut – wide open for unrestricted views and ventilation, tightly closed to keep out wind and rain. A reliable greenhouse window opener that fits most standard greenhouse windows.
Solar Heat-Activated – Automatic Opening & Closing: Our solar powered greenhouse window opener responds instantly to temperature changes. It swings open at 77°F to release trapped hot air, and seals shut at 59°F to keep warmth in. No switches, no timers – just pure solar-powered automatic greenhouse vent that works with the sun.
Rust-Proof & Durable: Built with a heavy-duty galvanized steel piston and rust-proof coating, this automatic vent opener greenhouse stays reliable even in humid conditions. Unlike cheaper openers that rust or fail, this greenhouse vent automatic opener delivers season after season of dependable performance – so you’re not replacing it every year.
【Auto Open/Closed】: This greenhouse automatic temperature-controlled window opener features automatic opening/closing—no batteries or electricity required. Harnessing solar energy, vent opener greenhouse operates via thermal induction, adjusting automatically with temperature changes.
【Quick Installation】: Easily install this automatic greenhouse window opener in just 5 minutes with a screwdriver. Automatic window opener includes illustrated instructions and pre-drilled holes, compatible with roof windows, side windows, or sloped greenhouses.
$27.99