ecoTEC Plus VUW Heat Exchanger DHW 178973 (20 Plates) screws are missing
Vaillant Heat Exchanger DHW 178973
For use with the following Vaillant boilers;
Vaillant ecoTEC PLUS 824
and Vaillant ecoTEC PLUS 831
with Vaillant ecoTEC PLUS 837
plus Vaillant VUW 246/3-5 (2005-2005)
fits Vaillant VUW 246/3-5 R1 (2005-2010)
and Vaillant VUW 316/3-5 (2005-2005)
with Vaillant VUW 316/3-5 R1 (2005-2010)
A primary heat exchanger is found in all boilers
It uses heat from a burner to raise the temperature of the water in the system
The secondary heat exchanger is present only in combis and allows the heat to be transferred between closed systems.
Please note the screws are missing.
Box tatty from storage
