Vaillant Heat Exchangers (Page 2)
There are two different types of heat exchanger that can be installed, 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 required in a combi boiler and allows the heat to be transferred from one closed system to another.
Vaillant 0020195461 Heat Exchanger - Ecofit Pure/Home Combi/Ecofit Sustain
Part No: 1387894 MPN: 0020195461
