Virtually silent Electrically operated, similar to a hydraulic ram, lifts 45 kilos. Ideal for heavy double glazed roof lights. One motor per vent.
Stops temperature fluctuations with using Conservatory motor.Electronic Thermostat and Burst Timer. As temperature rises, the thermostat activates the burst timer. The window opens slightly, then waits before opening further, continuing until wide open. As the temperature drops, the vent closes in one go. Both opening times and wait times are independently set. Supplied with Thermostat and Burst Timer Pre-Wired.
