What is the purpose of combustion air openings in a fuel oil burner?

The purpose of combustion air openings in a fuel oil burner is to allow air in for proper combustion. In order for fuel oil to burn efficiently and effectively, it requires an adequate supply of oxygen. The combustion process involves mixing the fuel with air; therefore, if the air supply is insufficient, the burner will not operate optimally. This can lead to incomplete combustion, producing carbon monoxide and other harmful emissions, as well as reducing the efficiency of the heating system. Sufficient combustion air openings ensure that the burner receives the right amount of air, leading to efficient burning, reduced emissions, and enhanced performance of the heating system. Proper combustion is essential for both safety and efficiency in heating systems.