Burner Nozzle

A Burner Nozzle is the final delivery component in the fuel system. Its job is to introduce the fuel into the combustion chamber in a specific pattern and state to ensure rapid and stable mixing with air.

Oil Nozzles (Atomizers)

In oil burners, the nozzle must "atomize" the liquid fuel—breaking it into microscopic droplets to increase surface area for burning.

• Pressure Atomization: Uses high pressure (e.g., 20 bar) to force oil through a tiny orifice.
• Rotary Cup: Uses a spinning cup to fling oil off the edge.
• Air/Steam Atomization: Uses compressed air or steam to shatter the oil stream (common in heavy oil burners).

Gas Nozzles

In gas burners, the "nozzle" (often called a lance or spud) distributes gas into the air stream.

• Premix: Gas and air are mixed before the nozzle head.
• Nozzle Mix: Gas and air meet at the point of ignition (safer, prevents flashback).