Vaillant
Vaillant heat exchanger 0020195460
Genuine Vaillant heat exchanger for the Ecofit Pure, Ecofit Sustain, Ecotec Plus and Home boiler ranges.
At a glance
- Also known as 1387892
- Fitting should be carried out by a Gas Safe registered engineer
Showing prices
£596.74
£497.28 ex. VAT · VAT at 20%
Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
A genuine Vaillant heat exchanger, part number 0020195460. It transfers heat from the burner into the water circulating through the boiler.
Signs this part needs replacing
- Reduced heat output or lukewarm radiators/hot water
- Boiler locks out on an overheat or flow fault
- Kettling or banging noises from the boiler
- Visible leaks or scale build-up around the heat exchanger
Before you order
- Match the part number and model on your existing exchanger before ordering
- Isolate the water and electrical supply before removing the old exchanger
- Fitting should be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | 1387892 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME COMBI 25 -A | 47-044-62 | 47-044-62 | — | — |
| VAILLANT HOME REGULAR 12 -A | 41-044-88 | 41-044-88 | — | — |
| VAILLANT HOME REGULAR 15 -A | 41-044-89 | 41-044-89 | — | — |
| VAILLANT HOME REGULAR 18 -A | 41-044-90 | 41-044-90 | — | — |
| VAILLANT HOME SYSTEM 12 -A | 41-044-94 | 41-044-94 | — | — |
| VAILLANT HOME SYSTEM 15 -A | 41-044-95 | 41-044-95 | — | — |
| VAILLANT HOME SYSTEM 18 -A | 41-044-96 | 41-044-96 | — | — |
| VAILLANT VU 126/6-5 OV | 41-044-71 | 41-044-71 | — | — |
| VAILLANT VU 126/6-5 OVZ | 41-694-13 | 41-694-13 | — | — |
| VAILLANT VU 156/6-5 OV | 41-044-72 | 41-044-72 | — | — |
Showing 10 of 35 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
VAILLANT appliance manual — HOME COMBI 25 -A (GC 47-044-62)
manualmanualVAILLANT appliance manual — HOME REGULAR 12 -A (GC 41-044-88), HOME REGULAR 15 -A (GC 41-044-89), HOME REGULAR 18 -A (GC 41-044-90)
manualmanualVAILLANT appliance manual — HOME SYSTEM 12 -A (GC 41-044-94), HOME SYSTEM 15 -A (GC 41-044-95), HOME SYSTEM 18 -A (GC 41-044-96)
manualmanualVAILLANT appliance manual — VU 126/6-5 OV (GC 41-044-71), VU 156/6-5 OV (GC 41-044-72), VU 186/6-5 OV (GC 41-044-73), VU 246/6-5 OV (GC 41-044-74), ecoTEC PLUS 412 VU 126/6-5 OV (2015) (GC 41-044-71), ecoTEC PLUS 415 VU 156/6-5 OV (2015) (GC 41-044-72), ecoTEC PLUS 418 VU 186/6-5 OV (2015) (GC 41-044-73), ecoTEC PLUS 424 VU 246/6-5 OV (2015) (GC 41-044-74)
manualmanualVAILLANT appliance manual — VU 126/6-5 OVZ (GC 41-694-13), VU 156/6-5 OVZ (GC 41-694-14), VU 186/6-5 OVZ (GC 41-694-15), ecoTEC PLUS 412 VU 126/6-5 OVZ (2016) (GC 41-694-13), ecoTEC PLUS 415 VU 156/6-5 OVZ (2016) (GC 41-694-14), ecoTEC PLUS 418 VU 186/6-5 OVZ (2016) (GC 41-694-15)
manualmanualVAILLANT appliance manual — ecoFIT PURE 412 - VU 126/6-3 OV (2016) (GC 41-694-08), ecoFIT PURE 415 - VU 156/6-3 OV (2016) (GC 41-694-09), ecoFIT PURE 418 - VU 186/6-3 OV (2016) (GC 41-694-10)
manualmanualVAILLANT appliance manual — ecoFIT PURE 612 - VU 126/6-3 (2016) (GC 41-694-03), ecoFIT PURE 615 - VU 156/6-3 (2016) (GC 41-694-04), ecoFIT PURE 618 - VU 186/6-3 (2016) (GC 41-694-05)
manualmanualVAILLANT appliance manual — ecoFIT PURE 825 - VUW 256/6-3 (2016) (GC 47-044-68)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 415 - VU 156/6-3 OV (2018) (GC 41-694-33), ecoFIT SUSTAIN 418 - VU 186/6-3 OV (2018) (GC 41-694-34)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 615 - VU 156/6-3 (2018) (GC 41-694-30), ecoFIT SUSTAIN 618 - VU 186/6-3 (2018) (GC 41-694-31)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 825 - VUW 256/6-3 (2016) (GC 47-044-71)
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