Which factor is crucial for ensuring the efficiency of an oil burner?

Combustion air adjustment is crucial for ensuring the efficiency of an oil burner because it directly affects the combustion process. Proper air-to-fuel ratio is essential for achieving complete combustion, which ensures that the fuel is burned efficiently and minimizes the production of harmful byproducts like carbon monoxide and unburned hydrocarbons. Adequate combustion air enhances the burner’s performance by allowing the oil to burn more completely, resulting in optimal heat production and fuel usage, leading to better energy efficiency and reduced operational costs. Furthermore, with the right air adjustment, the burner can maintain a steady flame and improve overall system reliability.

While factors like burner size, flame color, and fuel tank location do influence an oil burner’s operation, they do not have the same direct impact on combustion efficiency as the adjustment of combustion air. A well-adjusted air supply is fundamental in driving the efficiency of the entire heating system.