About This

• Automatic Temperature Activated Opening: This solar heat sensitive auto opener utilizes a wax based thermal cylinder that expands as internal greenhouse temperatures rise, automatically pushing your window or vent open to release excess heat. No electricity or batteries are needed, offering a self regulating, cooling solution that maintains a stable environment for your plants.
• Durable Construction for Long Term Use: Crafted from heavy duty aluminum alloy and high strength engineering plastics, this autovent is built to withstand harsh greenhouse conditions, including exposure, humidity, and temperature fluctuations. The robust design ensures reliable operation season after season, protecting your investment and your plants.
• Easy Installation & Adjustable Settings: The vent opener mounts directly to your greenhouse window frame using the included stainless steel brackets and screws. A simple adjustable opening temperature range allows you to customize when the vent begins to open, typically from 60°F to 75°F, providing precise climate control tailored to your specific plants' needs.
• Versatile Compatibility for Multiple Structures: Ideal for use on greenhouses, cold frames, sheds, and small outbuildings, this auto works with windows up to 15 inches in height and weighing up to 15 lbs. Its universal design ensures a perfect fit for most standard aluminum and wood framed structures, expanding your ventilation options.
• Reliable Performance & Quiet Operation: The wax cylinder mechanism provides smooth, silent operation without the noise of electric motors. With a maximum lifting force of 15 lbs and a stroke length of 7 inches, this vent opener delivers consistent performance. The heat sensitive design ensures your greenhouse stays properly ventilated, preventing overheating and promoting plant growth.