Furnaces heat air and distribute the heated air through the house using ducts. Boilers heat water, and provide either hot water or steam for heating. Steam is distributed via pipes to steam radiators, and hot water can be distributed via baseboard radiators or radiant floor systems, or can heat air via a coil.
People also ask, what is the purpose of the boiler?
A boiler is an enclosed vessel in which water is heated and circulated, either as hot water, steam, or superheated steam for the purpose of heating, powering, and/or producing electricity.
What is the use of a boiler?
Combustion. The source of heat for a boiler is combustion of any of several fuels, such as wood, coal, oil, or natural gas. Nuclear fission is also used as a heat source for generating steam. Heat recovery steam generators (HRSGs) use the heat rejected from other processes such as gas turbines.
How much does it cost to replace a boiler in a house?
Over time, the mix of water and fuel can have an effect on the boiler's components, possibly inducing corrosion. The cost for replacing a standard gas boiler is about $4,000. A high-efficiency model costs about $7,500.