Product Information: There are two different types of heat exchanger that can be installed, they are the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and uses heat from the burner to raise the temperature of 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.
We only have this part as fitting one appliance, The Ariston MICROGENUS 27 MFFI .