automatic greenhouse vent

The Automatic Vent Opener was designed to automatically control the temperature and humidity levels and provide additional ventilation when needed, making gardening easier. As the air flow within the greenhouse warms, the vent steadily opens to allow the Automatic Greenhouse Vent correct amount of air flow in to the greenhouse and closes when the temperature cools. The vent arm was made with a metal cylinder containing wax which expands when heated to force a piston, which raises the screen, as the air flow gets warmer, then contracts as it cools, closing with the use of a springtime and resetting the piston. All you have to to do can be to install it on your own roof vent windowpane and it immediately starts functioning. The Automatic Vent Opener operates without the use of electricity and works with with all Palram greenhouse versions only. The solar driven Vent Opener will begin to open as temps 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 also skylights. Works during the day and maintain a constant interior climate, something unattainable to attain by manual adjustments.

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

Screw straight into polycarbonate panels, wood, or metal frames. THE TYPICAL Vent Opener can open a hinged window or vent weighing just as much as 32 lb. For larger 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 can help extend the lifetime of the hydraulic cylinder. Avoid solid grease, as dust particles “glues” very easily onto the piston rod and may harm the rubber. Also don’t forget to unlock the vent in the winter if departing the vent openers installed. A good weak winter sun can temperature the hydraulic cylinder sufficiently to create it start pushing 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. Simply grasp the “clutch” arm and squeeze for easy detachment. This enables vent to be completely opened for usage of the interior.