||Great for camping, caravans & motorhomes. The platinum coated 3,000BTU burner minimises emission of harmful gases. Catalytic heater generates no noise. Regulated flameless portable heating. Integral fan to circulate heat operates up to 8 hours on 2 D-Cell batteries, the heater operates with fan off or on. Operates on Coleman disposeable LPG cylinder for up to 8 hours. Has a 5 year limited warranty.