A blow lamp, also known as a blowtorch, is a tool that uses a fuel, such as kerosene, to produce a high-temperature flame. It is used for various applications that require concentrated heat, including:
Soldering and brazing: Joining metal parts together.
Heating: Softening paint for removal or pre-heating large metal castings before welding.
Weed control: Using the flame to burn weeds.
Melting: Melting snow and ice.
The blow lamp shown in the image is a kerosene-fueled model with a 2-pint capacity. It works by pressurizing the liquid fuel in its tank with a hand pump, which then forces the fuel through a nozzle to create a powerful jet of flame.