Boil 2 cups of water in under 2-1/2 minutes in strong winds and gusty weather. This well-made Soto Windmaster 4Flex stove is able to stand up to harsh conditions. The Soto WindMaster stove is designed so the pot sits close to the flame, making it more efficient in windy weather. Results in increased efficiency so boil time is quicker and longer. The concave design of the Soto butane stove head creates the effect of a built-in windscreen. You can also manage the heat with the Soto micro regulator. Soto WindMaster Stove Specifications: Output: 2800 kcal/h 3260w 11000 BTUDuration: Burns approx.1.5 hours with 8 oz.(250g) canisterWeight: 3.0. oz.(87g) with the 4Flex pot supportDimensions: (Stowed)1.9 x 3.0 x 1.7 inch (47 x 77 x 44 mm)