Products tagged with 'si boiler parts'

Genuine Glow-Worm Interface Printed Circuit Board 20027897 for compatible British Gas, CXI, HXI, C-CI, SXI and SI boilers. This replacement boiler PCB manages sensors, thermostats and safety functions for reliable system control.

Genuine Saunier Duval S1071400 Gas Valve for compatible C-CI, Themaclassic, Opalia and SI boilers. This replacement boiler gas valve controls gas flow to the burner or pilot assembly for safe and efficient boiler operation.