Heat Exchanger 0020135129

Vaillant Heat Exchanger 0020135129

This part fits the following:

Vaillant ecoTEC PLUS 612
and Vaillant ecoTEC PLUS 615
with Vaillant ecoTEC PLUS 618
plus Vaillant ecoTEC PLUS 824
fits Vaillant ecoTEC PRO 24
and Vaillant VU 126/3-5 (2005-2010)
with Vaillant VU 156/3-5 R1 (2005-2010)
plus Vaillant VU 186/3-5 R1 (2005-2010)
fits Vaillant VUW 246/3-3 R1 (2006-2010)
and Vaillant VUW 246/3-5 R1 (2005-2010)
with Vaillant VU 126/5-5 (2012-CURR)
plus Vaillant VU 156/5-5 (2012-CURR)
fits Vaillant VU 186/5-5 (2012-CURR)
and Vaillant ecoTEC PLUS 612
with Vaillant ecoTEC PLUS 615
plus Vaillant ecoTEC PLUS 618
fits Vaillant VU 126/5-5 R1 (2012-CURR)
and Vaillant VU 156/5-5 R2 (2012-CURR)
with Vaillant VU 186/5-5 R3 (2012-CURR)
plus Vaillant ecoTEC PLUS 612 R1
fits Vaillant ecoTEC PLUS 615 R2
and Vaillant ecoTEC PLUS 618 R3
with Vaillant VUW 246/5-3 (2012-CURR)
plus Vaillant ecoTEC PRO 24
fits Vaillant VUW 246/5-3 R1 (2012-CURR)
and Vaillant ecoTEC PRO 24 R1
with Vaillant VUW 246/5-5 (2012-CURR)
plus Vaillant ecoTEC PLUS 824
fits Vaillant VUW 246/5-5 R1 (2012-CURR)
and Vaillant ecoTEC PLUS 824 R1

There are two different kinds 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 it transfers the heat from the burner to the water within the system.

The secondary heat exchanger only appears on combination boilers and allows the heat to be transferred between one closed system and another.