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back boiler

British  

noun

  1. US name: water back.  a tank or series of pipes at the back of a fireplace for heating water

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"I have a coal fire and that provides heat from the back boiler, and I don't use electricity if I can help it to heat rooms."

From BBC

Lifted steamer from water, broke her back, boiler exploded, and that was the end of 'Lavinia.'

From Project Gutenberg

The hot plate is over all, and there is a back boiler, made of wrought iron, with brass tap and steam-pipe.

From Project Gutenberg