Katadyn's new Optimus Vega Stove is a high performing, lightweight remote canister stove that offers two ways of cooking in one stove. This allows for use in all four seasons -When cooking in cold temperatures or when extra fast boil times are needed, just open the gas canister support legs and turn your gas canister upside down and continue cooking in the 4 Season Mode. For excellent efficiency and precision cooking on a low flame use the Efficiency Mode. This backpacking stove has the lowest profile in its category offering superior stability, especially for larger pots. Runs on Gas Butane, Propane, Isobutane (not included).Fuel: Gas (Butane, Propane, Isobutane).Output: Watt: 2.600 BTU: 8.840.Power: 3,700 W / 12,580 BTU in 4 Season Mode and 1,400 W / 4,760 BTU in efficiency mode.Kit includes: complete stove, windscreen, storage bag.Material: Stainless steel, aluminum.Size: 130 x 70 x 65 mm / 5.12" x 2.76" x 2.56".Weight: 178 g / 6.28 oz.