During servicing, what should be checked to ensure full combustion in oil burners?

Ensuring full combustion in oil burners primarily involves checking the air-to-fuel mix. The correct ratio of air to fuel is crucial for efficient and complete combustion. If this mix is incorrect, it can lead to incomplete combustion, which produces harmful by-products such as carbon monoxide and soot, and can decrease the overall efficiency of the burner. A proper air-to-fuel ratio also optimizes the thermal output and helps maintain safe operation.

While the temperature of the burner, oil pressure level, and size of the combustion chamber may also play roles in the burner’s performance, they do not directly guarantee complete combustion. For instance, even if the burner is at the right temperature and the oil pressure is sufficient, an improper air-to-fuel ratio can still hinder complete combustion. As such, focusing on the air-to-fuel mix is essential to achieving optimal combustion performance in oil burners.