The Worcester Bosch electrode set flame and ignition causes the spark that begins combustion within the burner, while flame sensing electrodes are responsible for checking if there is a flame present in the burner to make sure that the boiler does not keep supplying gas without a flame.
Comes with screws and leads
Technical specification
TypeElectrodeManufacturer Model No87161019010Brand NameWorcester Bosch
Reviews
Worcester Bosch 87161019010 Electrode Set -Flame / Ignition