Constructed of heavy duty stainless steel, the NordicStove Deluxe is a convection heater available in model sizes: Deluxe 68 (6800 BTU), Deluxe 130 (13,000 BTU), Deluxe 250 (25,000 BTU), and Deluxe 400 (40,000 BTU). This unique heating versatility works for a wide range of heating requirements. NordicStove heaters require no electricity. Ideal for heating your boat, cabin, or home. Heavy stovetop is perfect for cooking.