Greenhouse ventopeners – automatic vents for green houses
Since Johannes started the company in 1981, window openers for hobby greenhouses has been the core business. In those +30 years, we have become the market leader for window openers, and are currently exporting the openers to all over the world.
We believe in quality products and quality service.
See the markets best greenhouse auto vents. We have made window openers for more than 30 years, and is the world’s leading manufacturer. Find your perfect greenhouse auto vent in our wide selection.
Go to the section with our temperature sensitive hydraulic cylinders. You can acquire the cylinders in different lengths and temperature sets as well as equip them with a variety of different mounting elements.
Go to the section for ventilation of buildings like schools, office buildings and kindergartens.
The Nova-Air system is also very suitable for ventilating winter gardens.