A boiler is a device that heats water or other fluids to produce steam or hot water for various applications. It is commonly used in homes for heating systems, where hot water circulates through radiators to warm up rooms. Boilers can run on different fuels, including natural gas, oil, or electricity, making them versatile for different needs. In industrial settings, boilers play a crucial role in generating steam for power generation or manufacturing processes. They are often part of larger systems, such as power plants or factories, where they help in producing energy or facilitating chemical reactions. Proper maintenance of a boiler is essential for safety and efficiency.