A boiler is a device that heats water or other fluids to produce steam or hot water for various uses. It works by burning fuel, such as natural gas or oil, or using electricity to generate heat. The heated water or steam can then be used for heating buildings, providing hot water, or powering machinery. Boilers are commonly found in homes, schools, and factories. They are an essential part of many heating systems, including radiators and underfloor heating. Proper maintenance of a boiler is crucial to ensure safety and efficiency, preventing issues like leaks or breakdowns.