Product Information: There are two kinds of heat exchanger 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 transfer of 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 2 closed systems.
This part is present in 7 different boilers in the Glowworm range including the Glowworm FLEXICOM CX , FLEXICOM CX , ULTRACOM 24 , ULTRACOM 24 , ULTRACOM 30 .