The Ideal ignition electrode kit is responsible for making the spark that begins combustion within the burner The flame-sensing electrodes are responsible for detecting whether there is a flame present in the burner. This is an important safety device that makes sure the boiler isn't still supplying gas without a flame.
Fits a large number of Ideal appliances
Technical specification
TypeElectrodeManufacturer Model No171442Brand NameIdeal Heating