This water-fueled torch doesn't burn as hot as other gas torches, so can be used with metals that are more sensitive to heat, and the flame doesn't heat up the body of the torch, according to ITM Power. Plus, it only produces water when it burns. The prototype is being tested by some UK welders now. Euronews reports that it will be available to the public "in the near future." See how it works in their video (with a great fire-related pop soundtrack).