Trangia Gas Burner GB74 With Cover - Primus System for Trangia Stove Systems Fits in all Trangia stoves system 25 Large and 27 Small in the lower wind shield. Can also be used in Trangia Triangle and Open Spirit stove. Does not fit Mini Trangia. Fits all propane / butane gas containers with threaded valves that meet the standard EN417, which is an international standard and found worldwide. Primus, MSR, Optimus, Jet boil are some some examples of manufacturers of these gas containers. The gas burner is easy to use, has a fast cooking time and keeps the pans soot free. It boils 1 liter of water in 3.5 min (varies depending on weather and fuel quality). It burns 150 g of gas per hour at full power. For trouble-free use of the gas burner, read the instructions provided. There you will also find advice on cleaning and care. From the start, you should regularly open your burner for maintenance. This prevents the threaded flame spreader from sticking and keeps the nozzle and fuel line clean and open. Features: Alternative to the Spirit burner Fits in all Trangia Stoves No. 25 and No.27 High efficiency. Easy control. Gas consumption: 150 g/h  / 0.33 lb/h . A gas canister of 230 g / 0.50 lb will burn 1.5 hrs on full power Weight: 180 g  /  0.40 lb Jet size: 0.37 mm  /  1.46 in Output: 2100 w/ 6700 btu