Welder's Heat Source
This page is the CodyCross answer for the clue below from Architectural Styles, Group 1166, Puzzle 2 (Dome of the Rock).
Question is: Welder's Heat Source
and the answer is: BLOWTORCH
Word Meaning:
BLOWTORCH — A tool which projects a controlled stream of a highly flammable gas over a spark in order to produce a controlled flame.
Definitions from Wiktionary.