What is the purpose of a nozzle in an oil burner?

The primary purpose of a nozzle in an oil burner is to atomize the fuel oil for better combustion efficiency. The nozzle creates a fine spray of oil, which allows for a more complete and efficient burn when mixed with air. This atomization is crucial because it increases the surface area of the fuel, enabling it to mix more thoroughly with the air for combustion. This process not only enhances the combustion efficiency but also helps to reduce emissions and improve overall system performance. By ensuring the oil is finely atomized, the burner can achieve optimum heating output and promote cleaner, more efficient energy use.