firetube

F4I1R1E1T1U1B3E1

noun

A tube conveying hot gas in a boiler.

Scrabble 13
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Meanings

nounfiretube (plural firetubes)

plural firetubes

  1. A tube conveying hot gas in a boiler.

    In a conventional boiler, the hot gases from the firebox, after passing through the firetubes, arrive in the smokebox and then pass up the chimney to atmosphere.

    1959 September, P. Ransome-Wallis, “The British Railways Class "9" 2-10-0s”, in Trains Illustrated, page 420

Origin

From fire + tube.

Full word history & related roots →
Cite this entry
APA

firetube. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/firetube

MLA

“firetube.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/firetube. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “firetube,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/firetube.

Source: firetube on Wiktionary, CC BY-SA 4.0.