Usually, there are two different types electrode, Ignition electrodes and flame detecting electrodes ,The Ignition (Spark) Electrode creates the spark that begins combustion. The flame sensing electrodes are responsible for detecting whether there is a flame present in the burner. This is an important task that ensures the boiler doesn't keep supplying gas while no flame is present .
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Technical specification
TypeElectrodeManufacturer Model No720481201Brand NameBroag Remeha
Reviews
Broag 720481201 Ionisation and Ignition Electrode with Lead