The Automatic Vent Opener was made to automatically control the temperature and humidity levels and provide additional ventilation when needed, making gardening easier. As the air inside the greenhouse warms, the vent steadily opens to enable the correct amount of air flow in to the greenhouse and closes when the temperature cools. The vent arm was made with a steel cylinder containing wax which expands when heated to force a piston, which raises the home Greenhouse Vent Opener window, as the surroundings gets warmer, then contracts since it cools, closing with the utilization of a springtime and resetting the piston. All you have to to do is to install it on your own roof vent windows and it immediately starts operating. The Automatic Vent Opener operates without the use of electricity and works with with all Palram greenhouse models only. The solar powered Vent Opener will begin to open as temperatures inside your greenhouse reach 68 degrees F with full-open at 80 degrees. It installs quickly and easily and will provide care-free ventilation.
Ingenious temperature-delicate device that automatically opens and closes coldframe lids, greenhouse windows and actually skylights. Works throughout the day and maintain a constant interior climate, something extremely hard to attain by manual adjustments.
Requires simply no batteries or electricity.
It can be adjusted to start opening between 60-77°F. Fully open at 86-90°F. Fully closed at 55°F.
Strongly recommended for almost all our glazed season extenders since it dramatically improves plant growth.
The hydraulic cylinder includes a 1 year warranty. The common lifetime of the cylinder can be 5-10 years, although some can last up to 20 years.
Screw directly into polycarbonate panels, wood, or metal frames. THE TYPICAL Vent Opener can open a hinged windowpane or vent weighing just as much as 32 lb. For larger panes use the stronger Gigavent with all steel structure, to lift up to 65 lbs.