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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 inside the greenhouse warms, the vent steadily opens to enable the correct amount of ventilation in to the greenhouse and closes when the temperature cools. The vent arm was designed with a steel cylinder containing wax which expands when heated to press a piston, which raises the home window, as the atmosphere gets warmer, then agreements as it cools, closing with the use of a spring and resetting the piston. All you need to do is usually to install it on your roof vent windowpane and it instantly starts functioning. The Automatic Vent Opener works without the usage of electricity and is compatible with all Palram greenhouse models only. The solar driven Vent Opener will begin to open as temps within your greenhouse reach 68 degrees F with full-open at 80 degrees. It installs efficiently and can provide care-free ventilation.
Ingenious temperature-delicate device that automatically opens and closes coldframe lids, greenhouse Greenhouse Vent Opener windows and also skylights. Works throughout the day and maintain a continuous interior climate, something difficult to achieve 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 most our glazed season extenders because it dramatically enhances plant growth.
The hydraulic cylinder includes a 1 year warranty. The common lifetime of the cylinder can be 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 windows or vent weighing just as much as 32 lb. For bigger panes use the stronger Gigavent with all metallic building, to lift up to 65 lbs.

Note from the manufacturer: Suggested to lubricate the piston rod annual, this can help extend the duration of the hydraulic cylinder. Avoid solid grease, as dirt particles “glues” easily onto the piston rod and can damage the rubber. Also do not forget to unlock the vent in the wintertime if departing the vent openers set up. Even a weak winter sun can heat the hydraulic cylinder sufficiently to make 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-driven control with a quick-release mounting bracket. Simply grasp the “clutch” arm and squeeze for easy detachment. This allows vent to be completely opened for usage of the interior.