There are two kinds 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 it allows the transfer of heat from the burner to the water within the syst
Supplier Part Number: 173554
Comes with o-rings, screws and Clips
Technical specification
Waist Sizeaa55ch12gwTypeMainSupplier Part Number173554Brand NameIdeal