Traditional boilers are heating systems that use fuel, such as natural gas or oil, to heat water. This hot water is then circulated through pipes to radiators or underfloor heating systems, providing warmth to homes and buildings. They are known for their reliability and efficiency in producing heat, making them a popular choice for many households. These boilers typically consist of a large tank where water is heated and a burner that ignites the fuel. While traditional boilers can be effective, they may require regular maintenance to ensure optimal performance and safety. Upgrading to more modern systems, like combi boilers, can offer additional benefits, such as space-saving designs and improved energy efficiency.