Vaillant
Vaillant Heat Exchanger 0020222907
Vaillant heat exchanger, part number 0020222907, for VWF 157/4 and VWF 197/4 appliances.
At a glance
- Also known as 1386852
£278.10
£231.75 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Vaillant 0020222907 is a heat exchanger supplied by Vaillant for use in its VWF appliance family. It transfers heat between the appliance's heating circuit and the domestic hot water or system circuit, depending on the installation type. It is a serviceable component, so it is replaced when the existing unit becomes blocked, scaled or leaks.
Signs this part needs replacing
- Water or residue visible around the heat exchanger body or its connections
- Reduced heat output or poor domestic hot water performance despite correct appliance settings
- Repeated overheating or high-limit faults traced to restricted heat transfer
- Sludge, scale or debris build-up restricting flow through the exchanger
- Unusual noise from the exchanger area during heating or hot water demand
Before you order
- Confirm the appliance model and variant against the fitment list above
- Check the existing part number on the component or in the manufacturer's parts list
- Inspect the surrounding pipework and seals for damage that may also need attention
- Verify the fault is with the heat exchanger and not with a related component such as a pump, sensor or diverter
Compliance
| Alternative numbers | 1386852 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWF 157/4 | — | — | — | |
| VAILLANT VWF 197/4 | — | — | — | |
| VAILLANT flexoTHERM VWF 157/4 | — | — | — | |
| VAILLANT flexoTHERM VWF 197/4 | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No technical questions yet for this part.
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