Jason in San Antonio, Texas, is curious why the term salamander is applied to small heater on a construction site. In ancient lore, the mythical beast called a salamander was impervious to fire. Later salamander was applied to various heating instruments, from an 18th century browning iron to modern pizza broilers. Salamander has also been applied metaphorically to the seeming invincibility of brave soldiers, fire-eating jugglers, and women who stay chaste despite temptation. This is part of a complete episode.