Self-Regulating Greenhouse Vent Opener for Roof VentsAutomatically Opens and Closes Based on TemperatureThis AV01 residential roof vent opener is a simple, non-electric solution for maintaining optimal airflow in backyard greenhouses. It uses a temperature-sensitive wax mechanism to open and close vents automatically, without any wiring or power source.Adjustable Temperature Range for Custom Climate ControlDesigned to activate between 17°C and 24°C (adjustable), the mechanism expands to lift the vent when temperatures rise and retracts as it cools. The AV01 model can lift up to 14kg, making it ideal for standard greenhouse roof vents.Durable and Reliable for Australian ConditionsNo need to remember to open or close vents. These openers ensure consistent airflow and temperature regulation, helping reduce heat stress on your plants — especially useful in variable Australian climates. Model: AV01 Residential Roof Vent Opener Lifting Capacity: Up to 14kg Temperature Range: Opens between 17°C – 24°C (adjustable) Power Source: None required – fully mechanical Use: Compatible with roof vents on most backyard greenhousesAlso available: Options for side louvre vents and large commercial vents.
