Product Information: This part is located within the heat exchanger section. There are two different types of heat exchanger that can be present, they are 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 present in combination boilers and allows the heat to be transferred between two closed systems.
This part is present in 10 different boilers in the Vaillant range including the Vaillant ECOmax 613/2 E , ECOmax 618/2 E , ECOmax 622/2 E , ECOmax 828/2 E , ECOmax 824/2 E .