The system acts as an interlock between the ventilation system and the gas solenoid valve. The interlock will isolate the gas supply, in the event that the mechanical ventilation system fails. In addition, the BBQ has a flame failure device fitted meaning if the flame goes out, the gas will be shut off. A high powered rangehood is necessary for this system to function.
The unit needs a standard 10amp GPO to facilitate the main power box of the system.