BOILER

[noun] [C] - a device that heats water by burning gas or oil, esp. to provide heating and hot water in a houseOur central heating boiler has broken down - we'll need to call a plumber.A boiler is also the part of a steam engine where water is heated to provide power.(UK and ANZ) A boiler suit (US usually coveralls) is a suit made in one piece which is worn for doing dirty work.