Product Information: This part is located within the heat exchanger section. There are two different types of heat exchanger that can be within your heating unit, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and it transfers the heat 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 two closed systems.
This part is listed against 2 boilers on our website, The Glowworm COMPACT 75 , COMPACT 80 .