Worcester Bosch has two different types of heat exchangers that can be present, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and it allows the heat to be transferred from the burner to the water within the system. The secondary heat exchanger is only required in a combi boiler and allows the heat to be transferred between one closed system and another.
Supplied with 3 O-rings and 1 fibre washer
Technical specification
TypeHeat ExchangerCompatible WithWorcester CDI II 35 NG and Worcester CDI II 35 LPGManufacturer Model No87161026720Brand NameWorcester Bosch