Boiler (water heating)
{{Short description|Appliance or device for heating water}}
{{other|Boiler (disambiguation)}}{{See also|Furnace (central heating)}}
The term boiler may refer to an appliance for heating water. Applications include water heating and central heating.
Operation
The boiler heats water to a temperature controlled by a thermostat. The water then flows (either by natural circulation or by a pump) to radiators in the rooms which are to be heated. Water also flows through a coil in the hot water tank to heat a separate mass of water for bathing, etc.
Condensing boiler
{{main|Condensing boiler}}
Back boiler
{{main|Back boiler}}
A back boiler is a device which is fitted to a residential heating stove or open fireplace to enable it to provide both room heat and domestic hot water or central heating.{{cite web|url=http://www.energysavingtrust.org.uk/domestic/content/biomass |title=Biomass | Energy Saving Trust |accessdate=2015-01-27 |url-status=dead |archiveurl=https://web.archive.org/web/20150329053444/http://www.energysavingtrust.org.uk/domestic/content/biomass |archivedate=2015-03-29 }}