Oil furnaces parts rely on various parts to ensure efficient heating and reliable operation. Beckett oil burner parts list include an oil nozzle, an ignition transformer, a combustion head, and a blower or fan. The oil nozzle delivers the oil to the burner, the ignition transformer provides the spark to ignite the oil, the combustion head ensures the proper combustion of the oil, and a blower or fan blows the heat out of the furnace into the building.