Product Information:
There are two different types of heat exchangers that can be installed, 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.

This Part Fits
Alpha HE CB25
Alpha HE CB33
Alpha HE SY25

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