Heat torches have a wide range of use in manufacturing industries such as high-capacity staking, curing, drying, heat-shrinking, air heaters, sterilization, adhesive activation, air scrubbing and air knives.
The blowtorch is commonly used where a diffuse (wide spread) high temperature naked flame heat is required but not so hot as to cause combustion or welding. Temperature applications are soldering, brazing, softening paint for removal, melting roof tar, or pre-heating large castings before welding such as for repairing.