Boiler burner refers to the burner used on the boiler. Boiler burner is the most important equipment in the supporting auxiliary equipment of oil-fired and gas-fired boiler. Boiler burner is mainly divided into oil burner, gas burner and dual-fuel burner (also known as oil-gas burner). Oil burner can be divided into light oil burner and heavy oil burner, and light oil mainly refers to diesel oil, Heavy oil refers to the heavy oil left after extracting gasoline and diesel from crude oil; Gas burners can be divided into natural gas burners, city gas burners, LPG burners and biogas burners.