What is the general function of a boiler in a heating system?

The function of a boiler in a heating system is primarily to produce hot water or steam, which can then be distributed throughout a building to provide heating. This process involves the boiler burning fuel, such as natural gas, oil, or electricity, to generate heat. The generated heat is transferred to water within the boiler, either creating steam or heating the water, which is then circulated through pipes to radiators or other heat emitters.

This production of hot water or steam is central to various heating applications, making it essential for maintaining comfortable indoor temperatures during colder weather. Properly functioning boilers are vital for the energy efficiency and effectiveness of a heating system, ensuring adequate heating capacity and optimal energy use. Other systems like chilled water circulation or air filtration serve different purposes and are not related to the core function of heat generation through a boiler.