The large opening of the vent is necessary for a good and natural ventilation of the greenhouse.
Orbesen auto vent automatic greenhouse window opener.
Us hot auto vent automatic greenhouse window opener solar orbesen thermovent ideal for your greenhouse window opens and closes your greenhouse window and prevents your greenhouse from overheating.
Orbesen teknik aps has focus on window openers for hobby greenhouses and has been the core business since 1981.
The main element of all orbesen teknik s products is that it is a self working ventilation opener which is handmade by danish labour and ensures the correct temperature in your customer s greenhouse.
Window opener auto vent solar heat sensitive automatic vent opener.
Properties of the product.
The automatic greenhouse window opener reacts on the inside temperature in the greenhouse and not the outside temperature.
Aynefy greenhouse vent opener cylinder solar sensitive automatic roof hydraulic cylinder for window openers univent vent opener 21 99.
Do not apply excessive loads by locking or covering window.
Vent opener starts opening between 15 25 60 77 depending on how you have adjusted the cylinder.
The sesam spiro is designed with a long opening stroke.
This listing is a replacement cylinder only for the full set of auto vent opener you can find it in my shop.
Also suitable for orbesen gardman b q vents non electric uses solar energy open or close the greenhouse vents as temperature rises or drops important notice do not use this opener anywhere the temperature will exceed 50 122f.
Yosoo replacement window opener auto vent automatic greenhouse cylinder for orbesen gardman b q vents 3 8 out of 5 stars 51.
Which also means that your customer doesn t have to think about open the window in their greenhouse.
Bibistore auto vent greenhouse window opener with two springs solar automatic ventilation openers for hothouse cold frame gardening tools no power needed lifts 30 lbs 4 3 out of 5 stars 10 38 89.
Automatic ventilation opener ventilation in greenhouses the piston rod is completely sealed off in an aluminium enclosure.
This makes this window opener extremely applicable for dusty environments.