Halls Louvrematic Automatic Louvre Vent Opener

Details

• Zero-Power Thermal Operation: Uses a heat-sensitive wax cylinder that expands as the greenhouse warms and contracts as it cools, providing reliable ventilation with no electricity or batteries required.
• Consistent Climate Control: Automatically regulates internal airflow to prevent scorching on sunny afternoons and seals out cold draughts as evening temperatures drop.
• Designed for Eden Louvre Vents: Tailored to fit neatly onto Eden Greenhouses louvre frames for smooth, balanced blade movement without jamming.
• Hard-Wearing Aluminium Construction: Built to withstand humid, condensation-rich greenhouse environments season after season without rusting.
• Straightforward Installation: Mounts cleanly onto your existing louvre window unit with minimal fuss, upgrading manual vents into a self-regulating system.
• Ideal for Busy Gardeners: Gives you peace of mind during unpredictable British spring and summer weather, ensuring seedlings, tomatoes, and tender plants stay at an optimal growing temperature.