Boiler

A boiler is a closed vessel in which water or other fluids are heated to produce either hot water or steam. The heat used for this process can come from various sources, such as natural gas, oil, coal, electricity, or even renewable fuels. The resulting hot water or steam is then distributed through pipes for use in heating systems, powering turbines, or other industrial heating applications. In HVAC systems, boilers are commonly used for central heating, where the heated water or steam is used to warm indoor spaces via radiators, baseboard heaters, or underfloor heating. While the provided definition is correct in a general sense, it does not emphasize the role boilers play in HVAC systems.