Product Information: There are two kinds of heat exchanger that can be within your heating unit, 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 from one closed system to another.
This part is present in 6 different boilers in the Ideal range including the Ideal EVO HE , ISAR M30100 , ISAR HE 24 , ISAR HE 24 , ISAR HE 30 .