A conventional boiler is a type of heating system that uses water to provide warmth to a building. It operates by heating water in a tank and then distributing the hot water through pipes to radiators or underfloor heating systems. This method is effective for maintaining a consistent temperature in homes and commercial spaces. These boilers typically run on natural gas, oil, or electricity. They are known for their reliability and efficiency, but they require regular maintenance to ensure optimal performance. Conventional boilers are often larger than other types, such as combi boilers, and may take up more space in a home.