Are yams and sweet potatoes the same?
heating device in which fuel oil is mixed with air under controlled conditions. In most burners oil is supplied under pressure to an atomizing nozzle to produce a fine spray, to which air is added by a motor-driven fan. As the cone-shaped spray emerges from the nozzle, ignition is usually supplied by an electric spark to start the burner. Starting and shut-off are normally controlled by thermostat. In commercial-industrial types of burners, heavier fuel oil is used, requiring mechanical atomization