Stop Overheating Your Plants!
Tired of your seedlings wilting in afternoon heat or rushing home just to crack a window? Our temperature-sensitive opener uses zero electricity, harnessing solar warmth to vent your greenhouse automatically — keeping your plants cool even on scorching days.
Why Choose Our Greenhouse Window Opener?
Set & Forget Ventilation: Automatically opens softly at 15-25°C (59-77°F) and reaches full extension around 35°C (95°F). No wiring, no batteries.
Durable Metal Build: Constructed with a robust aluminum cylinder and iron brackets. With a powerful 7kg lifting capacity, it easily manages standard glass or polycarbonate windows up to 45cm in height.
Precision Temperature Control: The heat-sensitive wax expands smoothly to push the piston, preventing sudden slams. Keeps your plants at optimal growing temperatures.
Easy Bolt-On Installation: Includes all necessary mounting screws and brackets. Fits standard garden greenhouses; simply attach to the frame and window.
Scenarios: Perfect for ventilating cold frames, glasshouses, hobby polytunnels, and conservatory roofs.
Specifications:
Material: Aluminum, Iron
Main Rail Length: 315mm
Piston Stroke: 340mm
Piston Diameter: 12mm
Max Window Weight: 7 kg
Max Window Height: 45 cm
Opening Temp Start: Approx. 15-25°C
Fully Open Temp: Approx. 35°C
Note: Do not use in environments exceeding 50°C.
Package Includes:
1 x Window Opener Cylinder (without mounting frames)
OR
1 x Window Opener Set (Window Opener Cylinder + Mounting Frames)
After-Sales Promise:
We stand behind our craftsmanship. If you experience any fitting issues or defects, contact us directly for a fast replacement. Your garden satisfaction is our priority.
Notice:
Actual color may be slightly different from the image due to different display and light effect.