Automatic window opener
Heat-driven opener for greenhouse windows. No electricity, no batteries, Easy Clip mounting in seconds.
Two versions
Same mechanism, same specifications. The two versions are listed as separate items in the price list.
Window opener · Zinc
Classic zinc-coated finish.
Window opener · Black
Black finish.
The opener uses a heat-driven cylinder: as the air inside the greenhouse warms up, the cylinder expands and lifts the window; as it cools, the window closes. It starts to open at around 16 °C and is fully open at 30 °C, so ventilation follows the temperature without anyone touching it.
A double-arm spring mechanism gives it a lifting force of up to 20 kg, enough for heavier polycarbonate and glass windows. The Easy Clip system mounts and removes the opener in seconds and fits a wide range of greenhouse frames.
Built from zinc-coated steel for year-round outdoor use. Every set is inspected before packing and covered by a 2-year manufacturer's warranty.
Technical specifications
| Lifting force | up to 20 kg |
|---|---|
| Maximum opening | 45 cm |
| Cylinder stroke | 65 mm |
| Operating range | 16–30 °C |
| Power | none, heat-driven cylinder |
| Material | zinc-coated steel |
| Finish | zinc or black |
| Mounting | Easy Clip, no tools |
| Warranty | 2 years |
Key features
Starts at 16 °C, fully open at 30 °C
Ventilation follows the temperature automatically.
20 kg lifting force
Handles heavier windows with margin to spare.
Mounts in seconds
Easy Clip fixing, fits most frame profiles.
Zinc-coated steel
Corrosion resistant, built for years outdoors.
Product views
Test it before you order.
We send a free sample set to distributors and greenhouse manufacturers. Mount it, run it through a season, then talk quantities and prices with us directly.
