Low profile with superior stability, the Optimus Vega Backpacking Stove delivers two ways of cooking on one stove. Whether youre cooking in the cold or need extra-fast boiling time, use the four-season cooking mode. For fuel efficiency and precise cooking on a low flame, use efficiency mode. Puts out 12,580 BTUs in four-season mode and 4,760 BTUs in efficiency mode, and boils 1 liter of water in as little as three minutes. Uses LPG gas (butane/isobutane/propane). Includes stove, windscreen and stuff bag. 5.1L x 2.8W x 2.6H. Wt: 6.3 oz. Type: Backpacking Stoves.