BLOWTORCH

blowtorch, torch, blowlamp

(noun) a burner that mixes air and gas to produce a very hot flame

Source: WordNet® 3.1

Etymology

Noun

blowtorch (plural blowtorches)

A tool which projects a controlled stream of a highly flammable gas over a spark in order to produce a controlled flame.

Verb

blowtorch (third-person singular simple present blowtorches, present participle blowtorching, simple past and past participle blowtorched)

To apply a blowtorch to something.

Source: Wiktionary