The opener is designed to be used all year. However, the ventilation openers cylinder must be disconnected in the winter, if you are using a heat source inside the greenhouse or perhaps in stormy weather.

 

• Material - Aluminium-zinc coated steel
• Windows weight 14 kg
• Opening force 7 kg
• Standard closing force 0.5 kg
• Temperature range, opening 17 – 25 ºC
• Maximum window opening at 30 ºC
• Maximum opening 45 cm
• Standard color Metallic (untreated)