Greenhouse Vent Opener

The Automatic Vent Opener was made to automatically control the temperature and humidity amounts and offer additional ventilation when needed, making gardening easier. As the air flow within the greenhouse warms, the vent steadily opens to allow the correct amount of ventilation into the greenhouse and closes when the temperature cools. The vent arm was made with a metal cylinder that contains wax which expands when heated to force a piston, which raises the home window, as the atmosphere gets warmer, then contracts since it cools, closing with the use of a spring and resetting the piston. All you have to to do is to install it on your roof vent window and it instantly starts functioning. The Automatic Vent Opener functions without the usage of electricity and is compatible with all Greenhouse Vent Opener Palram greenhouse models only. The solar driven Vent Opener will start to open as temperatures inside your greenhouse reach 68 degrees F with full-open at 80 degrees. It installs efficiently and will provide care-free ventilation.
Ingenious temperature-sensitive device that automatically opens and closes coldframe lids, greenhouse windows and actually skylights. Works throughout the day and maintain a continuous interior climate, something unattainable to attain by manual adjustments.

Requires no batteries or electricity.
It could be adjusted to begin opening between 60-77°F. Fully open at 86-90°F. Fully closed at 55°F.
Strongly recommended for all our glazed season extenders because it dramatically increases plant growth.
The hydraulic cylinder has a 1 year warranty. The common duration of the cylinder is usually 5-10 years, even though some can last up to 20 years.

Screw directly into polycarbonate panels, wooden, or metal frames. THE TYPICAL Vent Opener can open up a hinged windowpane or vent weighing just as much as 32 lb. For bigger panes use the stronger Gigavent with all steel building, to lift up to 65 lbs.

Note from the maker: Suggested to lubricate the piston rod annual, this will help extend the duration of the hydraulic cylinder. Don’t use solid grease, as dust particles “glues” easily onto the piston rod and may harm the rubber. Also don’t forget to unlock the vent in the winter if leaving the vent openers installed. A good weak winter sun can heat the hydraulic cylinder sufficiently to make it start pressing the piston rod outwards.
This solar vent control will open and close vents, in your solar gem greenhouse. It features two closing springs for extra strength. The solar vent opener is the only solar-powered control with a quick-release mounting bracket. Just grasp the “clutch” arm and squeeze for easy detachment. This allows vent to be completely opened for usage of the interior.