Oil fired boilers are fueled by light oil (such as diesel or kerosene), heavy oil, residual oil or crude oil. Oil fired boilers is a popular choice in areas of the country with easy access to oil sources. Unlike coal fired boiler, oil fired boilers require a burner to inject oil fuel into the boiler furnace, it is burned in a fire chamber without the use of grate.

Compared with gas fired boilers, oil fired boilers are more convenient to use. With the development of the economy and the advancement of society and people’s awareness of environmental protection, coal fired boilers are far away from people’s sights due to serious pollution. They are replaced by new environmentally-friendly boilers, such as electrode boilers, oil fired boilers, gas fired boilers, etc. The electrode boiler is the most expensive to operate, and the gas fired boiler needs to open the gas pipeline. If there is no natural gas pipeline and the boiler operation cost is low, only oil fired boiler is available. Oil fired boiler is heated by the burner, the oil atomization effect is good, fuel is fully burned, and the chimney has no see black smoke, so oil fired boiler is green, energy-efficient and energy-saving.