Protect your plants in the greenhouse from frost and heat, as young seedlings and delicate plants require a stable temperature. This automatic window opener made of durable aluminum and stainless steel can be installed in all common greenhouses. This way, the windows will open and close fully automatically even in your absence.

The construction can be installed quickly and easily using the tension fittings on the greenhouse, without the need for any drilling. The cylinder responds to temperature changes; it automatically closes the window when it’s cold and opens it when it’s hot. This creates optimal air circulation, preventing excessive humidity and protecting your plants from typical greenhouse diseases.

The built-in hydraulic cylinder provides the energy for the window opener, as the fluid inside expands or contracts depending on the temperature, causing the frame to open or close – no electricity or batteries are required.

To ensure your window opener lasts for a long time, we recommend storing the cylinder frost-free during the winter months.