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 allow the correct amount of ventilation in to the greenhouse and closes when the temperature cools. The vent arm was made with a metallic cylinder that contains wax which expands when heated to drive a piston, which raises the home window, as the surroundings gets warmer, then agreements since it cools, closing with the use of a springtime and resetting the piston. All you need to do is certainly to install it on your own roof vent home window and it automatically starts working. The Automatic Vent Opener works without the use of electricity and is compatible with all Palram greenhouse versions only. The solar run Vent Opener will begin to open as temperature ranges 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 also skylights. Works during the day and maintain a constant interior climate, something not possible to attain by manual adjustments.

Requires simply no batteries or electricity.
It could be adjusted to begin opening between 60-77°F. Fully open up at 86-90°F. Fully closed at 55°F.
Strongly recommended for almost all our glazed season extenders because it dramatically boosts plant growth.
The hydraulic cylinder comes with a 1 year warranty. The average lifetime of the cylinder can be 5-10 years, even though some can last up to twenty years.

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

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