The oil is burned in a combustion chamber, creating a high-temperature flame that heats a heat exchanger responsible for transferring the heat to the water. The heated water is then circulated through a piping system to deliver hot water where required, whether it is for radiators, underfloor heating systems, or domestic use like taps and showers. Oil-fired hot water boilers are known for their reliability and are commonly used in regions where oil is readily available and cost-effective. They serve both residential and commercial applications, providing a consistent supply of hot water and heating while adhering to safety regulations and guidelines.