Vaillant Heat Exchangers
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 0020020018 ecoTEC Pro VUW Domestic Hot Water Heat Exchanger - 13 Plates
Part No: 1379874 / MPN: 0020020018
Vaillant 178973 Heat Exchanger - DHW 20 Plates - ecoTEC Plus R1/ecoTEC VUW R1
Part No: 1376534 / MPN: 178973
Vaillant 0020038572 Heat Exchanger - ecoTEC Pro VUW/ecoTEC Plus VUW/ecoTEC Pro28
Part No: 1383597 / MPN: 0020038572
Vaillant 0020135131 Heat Exchanger - ecoTEC Plus VU/ecoTEC Pro VUW
Part No: 1383357 / MPN: 0020135131
Vaillant 0020135129 Heat Exchanger - ecoTEC Plus VU/ecoTEC Pro VUW
Part No: 1383355 / MPN: 0020135129
Vaillant 065131 Secondary Heat Exchanger 12 Plates - Turbomax Plus VUW/Pro VUW
Part No: 1372673 / MPN: 065131
