Go System Dynasty Gas Heater Construction - Steel/Brass/Tin With Piezo auto-start ignition system. Ceramic burner plate Bi-directional heat. Fuelled by a “click in” Go System bayonet gas cartridge. G2220 Bayonet gas cartridge 2000 watts. 150g of gas consumed per hour. Continuous burn time of 1 hour 30 mins per 227g cartridge.