The Automatic Vent Opener was designed to automatically control the temperature and humidity amounts and offer additional ventilation when needed, making gardening easier. As the air in 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 designed with a metal cylinder that contains wax which expands when heated to push a piston, which raises the screen, as the air flow gets warmer, then agreements as it cools, closing with the use 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 working. The Automatic Vent Opener operates without the usage of electricity and is compatible with all Palram greenhouse versions 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 can provide care-free ventilation.
Ingenious temperature-sensitive device that automatically opens and closes coldframe lids, greenhouse windows and even skylights. Works during the day and maintain a constant interior climate, something not possible to accomplish by manual adjustments.
Requires no batteries or electricity.
It could be adjusted to start opening between 60-77°F. Fully open at 86-90°F. Fully closed at 55°F.
Strongly recommended for every our glazed season extenders because it dramatically enhances plant growth.
The hydraulic cylinder comes with a 1 year warranty. The average duration of the cylinder is definitely 5-10 years, although some can last up to 20 years.
Screw straight into polycarbonate panels, wooden, or metal frames. THE TYPICAL Vent Opener can open a hinged window or vent weighing just as much as 32 lb. For bigger panes use the stronger Gigavent with all steel structure, to lift up to 65 lbs.
Note from the maker: Recommended to lubricate the piston rod yearly, this can help extend the lifetime of the hydraulic cylinder. Don’t use solid grease, as dust particles “glues” very easily onto the piston rod and can damage the rubber. Also do not forget to unlock the vent in the winter if departing the vent openers set up. A good weak winter sunlight can high temperature the hydraulic cylinder sufficiently to make it start Automatic Greenhouse Vent 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 may be the only solar-driven control with a quick-release mounting bracket. Just grasp the “clutch” arm and squeeze for easy detachment. This allows vent to be fully opened for access to the interior.