Vaillant
Vaillant ecoTEC Plus/Pro R4 main heat exchanger 0020209544
Primary heat exchanger shared across Vaillant ecoTEC Plus 624, 831 and ecoTEC Pro 28 R4 boilers.
At a glance
- Also known as 1385462
- Have the replacement fitted by a Gas Safe registered engineer
£840.26
£700.22 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 0020209544 is the primary heat exchanger used across Vaillant's R4-generation ecoTEC Plus and ecoTEC Pro boilers. It transfers heat from the burner to the water circulating through the appliance.
Signs this part needs replacing
- Water leaking from around the heat exchanger
- Reduced or fluctuating hot water/heating output
- Kettling or banging noises when the boiler fires
- Lockouts linked to overheat or flow sensors
Before you order
- Confirm your exact model and GC number against the fits list
- Match the part number printed on your existing heat exchanger
- Isolate gas, electricity and water before removal
- Have the replacement fitted by a Gas Safe registered engineer
Compliance
| Alternative numbers | 1385462 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 246/5-5 A R4 | 41-044-82 | 41-044-82 | — | — |
| VAILLANT VU 246/5-5 R4 | 41-044-63 | 41-044-63 | — | — |
| VAILLANT VUW 286/5-3 R4 | 47-044-45 | 47-044-45 | — | — |
| VAILLANT VUW 306/5-3 R4 | 47-044-52 | 47-044-52 | — | — |
| VAILLANT VUW 316/5-5 R4 | 47-044-41 | 47-044-41 | — | — |
| VAILLANT VUW 326/5-5 R4 | 47-044-58 | 47-044-58 | — | — |
| VAILLANT ecoTEC PLUS 624 VU 246/5-5 A R4 | — | — | — | |
| VAILLANT ecoTEC PLUS 624 VU 246/5-5 A R4 (2015) | 41-044-82 | 41-044-82 | — | — |
| VAILLANT ecoTEC PLUS 624 VU 246/5-5 R4 (2015-2015) | 41-044-63 | 41-044-63 | — | — |
| VAILLANT ecoTEC PLUS 624 VU 246/5-5 R4 (41-044-63) | — | — | — |
Showing 10 of 13 compatible appliances.
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.
VAILLANT appliance manual — VU 246/5-5 A R4 (GC 41-044-82), VUW 326/5-5 R4 (GC 47-044-58), ecoTEC PLUS 624 VU 246/5-5 A R4 (2015) (GC 41-044-82), ecoTEC PLUS 832 VUW 326/5-5 R4 (2015) (GC 47-044-58)
manualmanualVAILLANT appliance manual — VU 246/5-5 R4 (GC 41-044-63), VUW 316/5-5 R4 (GC 47-044-41), ecoTEC PLUS 624 VU 246/5-5 R4 (2015-2015) (GC 41-044-63), ecoTEC PLUS 831 VUW 316/5-5 R4 (2015-2015) (GC 47-044-41)
manualmanualVAILLANT appliance manual — VUW 286/5-3 R4 (GC 47-044-45), ecoTEC PRO 28 VUW 286/5-3 R4 (2015-2015) (GC 47-044-45)
manualmanualVAILLANT appliance manual — VUW 306/5-3 R4 (GC 47-044-52)
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