Definition of back boiler in English:

back boiler

Line breaks: back boil¦er

noun

British
  • A boiler supplying hot water or heating that is built in behind a fireplace or is an integral part of a gas fire.
    More example sentences
    • An integral back boiler provides domestic hot water and heats the radiators, which then provide central heating.
    • Boilers can also be divided into floor-standing, wall-hung and back boilers.
    • She bought it in 2000 for about £235,000, when it was still heated by a back boiler and scarcely inhabitable by today's standards.

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Word of the day skosh
Pronunciation: skōSH
noun
a small amount; a little