The Potterton has two different kinds of heat exchangers 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 found in combination boilers and allows heat to be transferred between two closed systems.
Fits multiple appliances
Technical specification
Waist Sizead47cd38fwToilet Cistern CapacityFTW--Supplier Part Number5106024Brand NamePotterton