Palram Canopia Greenhouse Auto Vent Arm

The Palram Canopia Greenhouse Auto Vent Arm helps optimise the temperature in any Palram Canopia greenhouse with a roof vent. There’s no need to use electricity, or even be on hand, to operate this clever greenhouse auto vent arm, which uses a solar-powered mechanical system to automatically open and close any Palram Canopia roof vent, according to the temperature inside the greenhouse. Designed using wax, which contracts and expands as the temperature changes, the heat-activated arm starts opening the roof vent when the temperature reaches 12-15C, and then gradually closes it as the temperature drops. This greenhouse automatic vent arm is very easy to instal and is compatible with all Palram Canopia greenhouses with roof vents. Delivery is free to most UK addresses. Uses a solar-powered mechanical system No electricity required Automatically opens when the temperature reaches 12-15C Closes the roof vent as the temperature drops Very easy to instal Compatible with all Palram Canopia greenhouses with roof vents Free delivery to most UK addresses