Diesel Fired Boiler

This fuel is stored in a tank and, from there, it is pumped to the combustion chamber. Once it reaches the combustion chamber, the fuel burns and transfers the heat to the heat exchanger, which then heats the water that will be used to supply the heating system and hot water taps.An oil boiler works in a very similar way to a gas boiler. The fuel, in this case oil, is ignited in the combustion chamber and a heat exchanger warms up cold water, either from the mains in a combi system or from a cold water tank in a conventional system.An oil-fired heating system burns home heating oil in a combustion chamber. The oil is sprayed into the combustion chamber from a nozzle where it's then ignited by a spark. As the oil ignites, it starts to heat up the water that surrounds the combustion chamber.