Heating torches and flame heaters are tools or devices that are used to heat up a substance quickly, whether it is gas, metal, plastic, or other materials. Heating torches and flame heaters typically provide a way to quickly heat a concentrated area of material for main uses such as molding, metallurgy, hardening, and solidification.

Heating torches and flame heaters use fire as a means of providing intense heat for heating an object or a physical space. In industry and construction, heating torches and flame heaters are small, hand-held gas burners, which make a hot flame and are usually fueled by oxygen and acetylene, or oxygen and propane.

There are several types of heating torches and flame heaters including metal cutting torches, blowtorches, welding torches, lighting torches, heating torches, molding torches, and hardening torches.

Heating torches and flame heaters are widely used in different areas of applications including the medical industry. Heating torches and flame heaters in the medical industry can be found in various medical instruments such as blood analyzers. In an application, a heat torch is installed inside a blood analyzer to make real-time film cuvettes, allowing blood to be stored and tested on board the instrument.

Heating torches and flame heaters are also used in the creation of jewelry. Generally referred to as a soldering torches, heating torches and flame heaters used in jewelry making are often fueled by butane, propane, MAPP, or a mixture of propane and oxygen. Heating torches and flame heaters are more effective at working with certain metals such as sterling, gold, and copper, because they are able to heat these metals to much higher degree than traditional soldering irons and soldering guns.

In manufacturing industries, heating torches and flame heaters have a wide range of usages such as high capacity staking, curing, drying, heat-shrinking, air heating, sterilization, adhesive activation, air scrubbing and air knives. In construction, specialized plasma heating torches and flame heaters can be used in the field to heat up soil, a technique that has proven to be useful for providing enhanced solid footing for buildings and structures; this is still a developing technology, but has proven to be successful in prototype testing.

Heating torches and flame heaters are hot enough to melt metals, glass, and ceramics. Heating torches and flame heaters weld an almost limitless range of metals, from less than .0001 copper to 18 gauge steel, and it brazes and solders even the tiniest wires and filaments with much ease and versatility.