Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Black haw to Boulez, Pierre

Boiler

water surrounded hot tubes

Boiler, device for heating water to produce steam. The 2 main types of boiler are the fire-tube, in which hot gases are passed through tubes surrounded by water, and the water-tube, in which water is passed through tubes surrounded by hot gases. Fuels include coal, oil, gas, and nuclear energy.

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