Improved. With it's new burner, the Multi Fuel EX Stove has a higher output and functions better in cold temperatures. Runs on cartridge (LP gas), gasoline, and kerosene fuels (won't simmer on liquid fuels). The MFS features a built-in preheating system and has been tested at greater heights and at more extreme temperatures than any other stove. Includes redesigned windscreen, ErgoPump, multitool, nylon bag. Fuel bottle not included. Dimensions: 6.5" x 3.5" x 3.4". Boiling Time (1 liter): 3.5-4.5 min. Output: 3,000 W/10,500 BTU. Weight: 12.6 oz. (w/o pump), 16.3 oz (w/ pump).