Boil 2 cups of water in under 2-1/2 minutes in strong winds and gusty weather. This well-made 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 burner head creates the effect of a built-in windscreen. An efficient stove for whatever size pot your adventure requires. *NOTE: The WindMaster OD-1RXN which comes with only the 4Flex pot support replaces the previous WindMaster OD-1RXC that came with both the TriFlex and the 4Flex. The stove itself remains exactly the same. Features Superior performance in windy conditions A strong flame is maintained down to -5°C Two different size pot supports Micro Regulator produces even output, regardless of the ambient temperature Ultra Lightweight Gas canister sold separately Specifications Output: 2800 kcal/h 3260w 11000 BTUDuration: Burns approx.1.5 hours with 250g canisterWeight: 87g with the 4Flex pot support60g with no pot supportDimensions: 4Flex only (Stowed) 47 x 77 x 44 mm