There are three different types of heat exchanger that can be installed, the primary heat exchanger, the secondary heat exchanger and in some of the new condensing boilers, the condensing heat exchanger. The primary is present in almost all boilers and it allows the transfer of heat from the burner to the water within the system. The secondary heat exchanger is exclusive to combination boilers and allows the heat to be transferred between two closed systems.
The condensing heat exchanger is present in some of the boilers to extract heat from the flue products.
This part is present 10 different boilers in the Vaillant range including the Vaillant Ecotec Plus 824 - Vuw 246/3-5 R1, Ecotec Plus 824 - Vuw246/3-5 Fan Assisted, Ecotec Plus 831 - Vuw 316/3-5 R1, Ecotec Plus 831 - Vuw316/3-5 Fan Assisted.
At the bottom of the page is an appliance table with the links to all boilers that contain this part. Please use this if you would like to view all other spares that fit that model by clicking on your appliance model and download the user manual for that appliance. If none of these models match the appliance you have, please contact us before ordering so we can confirm this part is compatible.
We recommend that all parts are fitted by a fully qualified Gas Safe Registered Engineer. If you require any help locating a part, please feel free to contact us.
|Manufacturer||Appliance Model||GC Number|
|Vaillant||Ecotec Plus 824 - Vuw 246/3-5 R1|
|Vaillant||Ecotec Plus 824 - Vuw246/3-5 Fan Assisted|
|Vaillant||Ecotec Plus 831 - Vuw 316/3-5 R1|
|Vaillant||Ecotec Plus 831 - Vuw316/3-5 Fan Assisted|
|Vaillant||Ecotec Pro28 - Vuw286/3-3 Fan Assisted|
|Vaillant||Vuw 246/3-5 R1|
|Vaillant||Vuw 316/3-5 R1|
Vaillant 178973 DHW Heat Exchanger - 20 Plates
|Part Type||Heat Exchanger Components|