Is there a strainer in an oil burner nozzle, and if so, what is its purpose?

The correct answer highlights that there is indeed a strainer in an oil burner nozzle, and its primary purpose is to filter impurities from the oil. In an oil burner system, maintaining the integrity of the fuel is crucial for optimal performance. Impurities in the oil, such as dirt, rust, and other contaminants, can not only lead to clogging but can also affect the efficiency of combustion. The strainer acts as a safeguard by intercepting these particles before they reach the nozzle, ensuring that the oil is delivered in a clean state for effective combustion.

This filtration process is essential, as it helps to prolong the life of the nozzle and the entire oil burner assembly. By removing contaminants, the strainer contributes to smoother operation and better efficiency, which ultimately leads to reduced maintenance needs and lower operational costs for the heating system.