Blow Lamp, Traditional-Style Blowtorch.

Purpose: It is designed for applications requiring intense heat, such as soldering, brazing, melting roof tar, pre-heating metal castings, heat treating machine parts, and thawing frozen pipes. Fuel Type: These torches primarily operate on gasoline (petrol) or kerosene. Some models can also use a 50/50 mix of petrol and gas. Operation: The device uses a manual pump (the black handle on the top-right of the tank) to pressurize the fuel reservoir. This pressure forces fuel through a heating coil or tube where it vaporizes before being ignited at the nozzle to produce a powerful blue blast flame.