What do electrodes do in a boiler

Electrodes play an important role in the operation of a boiler, specifically in the ignition process. The two main types of electrodes used in boilers are the ignition electrode and the flame sensing electrode.

The ignition electrode is responsible for generating a high voltage spark that ignites the fuel in the burner, initiating combustion. The electrode is typically made of a metal rod with a ceramic insulator that is mounted near the burner. When the boiler is turned on, the ignition electrode produces an electrical charge that jumps from the electrode to the burner, creating a spark that ignites the gas or oil fuel.