The Janssens Royal Victorian Automatic Louver Window Opener is designed to automatically regulate the temperature and give additional ventilation in all Royal Victorian Greenhouses. As the air inside the greenhouse warms, the vent gradually opens to allow the suitable amount of airflow into the greenhouse and closes when the optimal temperature is attained.
The vent arm is designed with the use of natural minerals that expand with heat to push a piston, which raises the window panels, as the air gets warmer then shrinks as it cools, closing with the use of a spring. The Automatic Vent Opener functions without the use of electricity. It protects your plants and gives them the necessary temperature and moisture levels. It satisfies your plan needs reducing considerably maintenance costs. This is also perfect for busy gardeners.
