Meticulously engineered and crafted the 3.1 ounces. Soto WindMaster ultralight backpacking stove outperforms its competitors by maintaining a strong flame on stormy, blustery days. WindMaster includes a stove body, carry bag, and 4-Flex Support. Designed to position pot close to the flame making it nearly impossible for the wind to penetrate the stove's flame. With the installation of the micro regulator, the WindMaster is able to maintain a consistent output when challenging the limits in this category of stoves. The stove is shock resistant. The stealth igniter installed inside the burner post improves ignition and prevents breakage. Output: 2800 kcal/h 3260w 11000 BTU