return-flue boiler

American  

[ri-turn-floo] / rɪˈtɜrnˈflu /

noun

1. a fire-tube boiler having flues that collect the combustion gases at the end of the boiler opposite the fire door and pass them through the boiler to an uptake above the fire door.

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Etymology

Origin of return-flue boiler

First recorded in 1885–90

Example Sentences

This engine had too small a boiler, and he soon after built a larger engine, with a return-flue boiler made of wrought-iron.

From A History of the Growth of the Steam-Engine by Thurston, Robert H.