Automatic Greenhouse Window Opener (Autovent)
This top quality autovent comes with a 2 year warranty. it will open and close your greenhouse window for you automatically using the power of the sun. It is easy to install and does not need electricity as it uses the heat from the sun. Perfect for letting the heat out of your greenhouse and when cool, keeping it in.
You can set the device to automatically start opening between 17°C - 25°C depending on the setup.
Made from Aluminium zinc coated steel. Has an opening force of 7kg. Maximum opening at 30°C.Maximum opening approx 45cm depending on adjustment and load. Full instructions provided.
This product comes with a 2 year warranty.
Dimensions length (when closed) 31cm x width 4 cm x depth 3cm