Product Description
There are two kinds of heat Exchangers that can be installed, they are 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 one closed system
and another.

This Part Fits:
Baxi COMBI ECO 80
Main COMBI 24
Main COMBI 24 HE
Potterton PERFORMA 24
Potterton PERFORMA 24 Eco HE