Automatic Greenhouse Vent Opener for Various Greenhouse Styles and Sizes

Automatic Temperature Regulation — The automatic greenhouse vent opener uses a temperature-sensitive cylinder that expands and contracts between approximately 15–25°C (59–77°F) to automatically open or close compatible greenhouse vents. This passive ventilation helps release excess heat and maintain a more stable growing environment.Solar-Assisted, Non-Electric Operation — Designed for convenient automatic ventilation, this greenhouse window opener operates through a solar-assisted thermal mechanism without wiring, batteries, or an external power source. As the surrounding temperature rises or falls, the cylinder responds automatically to help regulate airflow.Compact & Lightweight Construction — Weighing approximately 107 g, this compact automatic vent opener is designed for convenient installation and handling. The included fittings help simplify mounting on compatible greenhouse window frames, providing a practical solution for automated ventilation without complicated wiring.Compatible with Roof & Side Vents — This greenhouse vent opener is designed for compatible roof and side vents and can work with common manual window winder systems when measurements match. It is suitable for various greenhouse styles and sizes, helping automate ventilation where compatible hardware is installed.Important Storage & Temperature Requirements — For proper handling, the product requires refrigeration before use as supplied. Do not use the opener in environments exceeding 50°C (122°F), and do not disassemble the unit. Always verify vent dimensions and mounting compatibility before installation.Specifications:Item type: Automatic Greenhouse Vent Opener / Greenhouse Window OpenerOperating temperature range: 15 to 25°C (60 to 77°F)Maximum ambient limit: Do not use where temperature will exceed 50°C (122°F)Weight: Approx 107 gMaterial: metal and compatible sealing materialsMounting: Compatible with common greenhouse window frames and manual winder attachmentsPackage Included:1 x Automatic Vent Opener / Greenhouse Roof Vent OpenerInstallation note:1. Verify window geometry and clearances, secure mounting fittings, and test operation through a full temperature cycle before leaving unattended2. Mounting fittings and basic fasteners as required for standard installationsFrequently Asked Questions:Q: Power requirement?A: No electrical power is required. The cylinder uses thermal expansion assisted by solar heating to operate automatically.Q: What is the working temperature range?A: The cylinder activates in the range of 15 to 25°C and is intended for environments that do not exceed 50°C.Q: Is refrigeration required before use?A: The product as supplied requires refrigeration before initial use according to supplier guidance. Follow storage instructions and handle with care.Q: Can I install on any greenhouse window?A: The opener is compatible with many roof and side vent designs but installers should verify measurements and mounting style before fitting.Q: Can the cylinder be disassembled?A: Do not dismantle the cylinder as this may damage the mechanism and void safe operation.

• Automatic Temperature Regulation — The automatic greenhouse vent opener uses a temperature-sensitive cylinder that expands and contracts between approximately 15–25°C (59–77°F) to automatically open or close compatible greenhouse vents. This passive ventilation helps release excess heat and maintain a more stable growing environment.
• Solar-Assisted, Non-Electric Operation — Designed for convenient automatic ventilation, this greenhouse window opener operates through a solar-assisted thermal mechanism without wiring, batteries, or an external power source. As the surrounding temperature rises or falls, the cylinder responds automatically to help regulate airflow.
• Compact & Lightweight Construction — Weighing approximately 107 g, this compact automatic vent opener is designed for convenient installation and handling. The included fittings help simplify mounting on compatible greenhouse window frames, providing a practical solution for automated ventilation without complicated wiring.
• Compatible with Roof & Side Vents — This greenhouse vent opener is designed for compatible roof and side vents and can work with common manual window winder systems when measurements match. It is suitable for various greenhouse styles and sizes, helping automate ventilation where compatible hardware is installed.
• Important Storage & Temperature Requirements — For proper handling, the product requires refrigeration before use as supplied. Do not use the opener in environments exceeding 50°C (122°F), and do not disassemble the unit. Always verify vent dimensions and mounting compatibility before installation.