Automatic Vent Opener

AV01 Residential Roof Vent Opener: Automatic, No Electricity Needed

Keep your backyard greenhouse well ventilated with the AV01 auto vent opener. This compact wax-powered cylinder lifts up to 14 kg and opens your roof vent by itself when the temperature reaches 17–24°C (fully adjustable). Once the air cools down it closes again, with no wires, power or maintenance needed.

Perfect for small to medium home greenhouses, the AV01 gives you dependable, hands-free temperature control and fresh air all year round.

• No electricity: Runs on a temperature-sensitive wax mechanism
• Adjustable range: Opens between 17–24°C
• Lifting strength: Handles vents up to 14 kg
• No maintenance: Set it up and forget about it
• Great for: Roof vents on hobby and backyard greenhouses