Vego | Greenhouse Roof Vent Auto Opener - 2 Pack

The Vego greenhoue roof vent auto opener helps your greenhouse regulate airflow automatically without electricity, wiring, or daily adjustments. As temperatures rise, the hydraulic cylinder gradually opens the roof vent to release excess heat. As temperatures cool, the vent slowly closes to help retain warmth and stabilize the growing environment. For many greenhouse growers, ventilation quickly becomes one of the most important upgrades after installation. Excess heat buildup can stress plants, reduce productivity, and create inconsistent growing conditions. This automatic roof vent opener helps maintain healthier airflow while reducing the need for constant manual monitoring, and helps create a more stable greenhouse climate throughout the growing season. A simple “set it and forget it” upgrade for Vego greenhouse owners who want better airflow, healthier plants, and greater peace of mind. KEY FEATURES Automatic temperature control: Opens between 60°F and 77°F to help prevent greenhouse overheating No electricity required: Fully mechanical hydraulic operation with no wiring or batteries Improves greenhouse airflow: Helps reduce trapped heat and humidity buildup Up to 18in vent opening: Creates stronger passive ventilation during warm weather Dual spring support system: Provides added lifting strength and stability Durable outdoor construction: Powder-coated aluminum frame with stainless steel springs Adjustable operation: Fine-tune vent opening and response temperature Low-maintenance solution: Designed for long-term greenhouse use with minimal upkeep SPECIFICATIONS PRODUCT TYPE Accessory: Automatic roof vent opener Pack Size: 2 openers Operation: Mechanical hydraulic system Power Requirement: None TEMPERATURE PERFORMANCE Working Temperature Range: 50°F to 122°F Vent Opening Starts: 60°F to 77°F Fully Open By: Approximately 100°F VENT PERFORMANCE Maximum Vent Opening: 18in Lift Capacity: Up to 15 lbs Adjustment: Adjustable cylinder tension MATERIALS Frame: Powder-coated aluminum alloy Springs: Stainless steel dual springs Cylinder: Hydraulic temperature-sensitive cylinder WHAT'RE INCLUDED 2 Auto vent opener assemblies 2 Hydraulic cylinders 2 Stop pins 2 Hair pins Mounting screws and installation hardware INSTALLATION GUIDE The Vego Auto Vent Opener installs directly onto compatible greenhouse roof vents using basic hand tools. Thread the cylinder into the opener assembly before installation For easier setup, chill the cylinder for 15 to 20 minutes before adjustment Install while the roof vent is fully closed Secure the mounting brackets to the greenhouse frame and roof vent Adjust the cylinder tension after installation for preferred vent opening performance View Installation Manual MAINTENANCE AND CARE Inspect the hydraulic cylinder every 6 to 12 months Lubricate moving components with light machine oil as needed Do not disassemble the cylinder Remove or store indoors during freezing weather conditions Before reinstalling, confirm that the piston rod moves smoothly OPTIONAL ACCESSORIES Many greenhouse owners combine automatic vent openers with additional climate-control accessories to create a more productive growing environment. Greenhouse shade cloth systems for summer heat reduction Circulation fans for improved airflow consistency Greenhouse shelving and grow systems Raised garden beds and seed-starting systems Additional roof vents and ventilation accessories Greenhouse thermometers and environmental monitoring tools Popular pairing: Vego greenhouse owners often add automatic vent openers alongside greenhouse shade systems to help maintain more stable growing temperatures during warmer months. WARRANTY The Vego Auto Vent Opener includes a 1-year manufacturer warranty. MANUFACTURER INFO AND UNIQUE SELLING POSITION Vego Garden is known for combining practical functionality with modern garden design. Their greenhouse accessories are designed to help home growers create more productive and easier-to-manage growing spaces. The Vego Auto Vent Opener offers one of the simplest and most effective greenhouse climate-control upgrades available. By automatically responding to temperature changes, it helps reduce heat stress, improve airflow, and support healthier plant growth without adding electrical complexity or ongoing maintenance. For greenhouse owners who cannot constantly monitor temperatures throughout the day, automatic roof ventilation can make a meaningful difference in growing performance and plant protection. FREQUENTLY ASKED QUESTIONS How does the Vego Auto Vent Opener work? The hydraulic cylinder expands as temperatures rise, automatically opening the roof vent. As temperatures cool, the cylinder contracts and closes the vent. Does this vent opener require electricity? No. It operates mechanically without electricity, batteries, or solar power. When does the vent start opening? The vent typically begins opening between 60°F and 77°F. How far can the vent open? The opener can lift the vent up to 18 inches. What is the lifting capacity? The unit can lift vents weighing up to 15 lbs. Can the opening range be adjusted? Yes. The cylinder tension can be adjusted to fine-tune vent opening performance. Is this compatible with all greenhouses? It fits most greenhouse roof windows, including Vego greenhouse systems and many compatible greenhouse designs. Should I remove the opener during winter? Yes. During freezing temperatures, it is recommended to remove or store the cylinder indoors to help protect long-term performance.