Vaillant
Vaillant heat exchanger 0020195461
Genuine Vaillant heat exchanger for the Ecofit Pure, Ecofit Sustain, Home Combi/Regular and Ecotec Plus boiler ranges.
At a glance
- Also known as 1387894
- Fitting should be carried out by a Gas Safe registered engineer
Showing prices
£635.51
£529.59 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 0020195461. 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 | 1387894 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME COMBI 30 -A | 47-044-63 | 47-044-63 | — | — |
| VAILLANT HOME COMBI 35 -A | 47-044-64 | 47-044-64 | — | — |
| VAILLANT HOME REGULAR 25 -A | 41-044-92 | 41-044-92 | — | — |
| VAILLANT HOME REGULAR 30 -A | 41-044-93 | 41-044-93 | — | — |
| VAILLANT HOME SYSTEM 25 -A | 41-044-97 | 41-044-97 | — | — |
| VAILLANT VU 246/6-5 OVZ | 41-694-16 | 41-694-16 | — | — |
| VAILLANT VU 306/6-5 OV | 41-044-75 | 41-044-75 | — | — |
| VAILLANT VU 306/6-5 OVZ | 41-694-17 | 41-694-17 | — | — |
| VAILLANT VU 356/6-5 OVZ | 41-044-76 | 41-044-76 | — | — |
| VAILLANT ecoFIT PURE 425 - VU 256/6-3 OV (2016) | 41-694-11 | 41-694-11 | — | — |
Showing 10 of 24 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 30 -A (GC 47-044-63), HOME COMBI 35 -A (GC 47-044-64)
manualmanualVAILLANT appliance manual — HOME REGULAR 25 -A (GC 41-044-92), HOME REGULAR 30 -A (GC 41-044-93)
manualmanualVAILLANT appliance manual — HOME SYSTEM 25 -A (GC 41-044-97)
manualmanualVAILLANT appliance manual — VU 246/6-5 OVZ (GC 41-694-16), VU 306/6-5 OVZ (GC 41-694-17), VU 356/6-5 OVZ (GC 41-044-76), ecoTEC PLUS 424 VU 246/6-5 OVZ (2016) (GC 41-694-16), ecoTEC PLUS 430 VU 306/6-5 OVZ (2016) (GC 41-694-17), ecoTEC PLUS 435 VU 356/6-5 OVZ (2016) (GC 41-044-76)
manualmanualVAILLANT appliance manual — VU 306/6-5 OV (GC 41-044-75), ecoTEC PLUS 430 VU 306/6-5 OV (2015) (GC 41-044-75)
manualmanualVAILLANT appliance manual — ecoFIT PURE 425 - VU 256/6-3 OV (2016) (GC 41-694-11), ecoFIT PURE 430 - VU 306/6-3 OV (2016) (GC 41-694-12), ecoFIT PURE 435 - VU 356/6-3 OV (2016) (GC 41-694-19)
manualmanualVAILLANT appliance manual — ecoFIT PURE 625 - VU 256/6-3 (2016) (GC 41-694-06), ecoFIT PURE 630 - VU 306/6-3 (2016) (GC 41-694-07)
manualmanualVAILLANT appliance manual — ecoFIT PURE 830 - VUW 306/6-3 (2016) (GC 47-044-74), ecoFIT PURE 835 - VUW 356/6-3 (2016) (GC 47-044-70)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 430 - VU 306/6-3 OV (2018) (GC 41-694-35)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 630 - VU 306/6-3 (2018) (GC 41-694-32)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 830 - VUW 306/6-3 (2016) (GC 47-044-72), ecoFIT SUSTAIN 835 - VUW 356/6-3 (2016) (GC 47-044-73)
manualNo technical questions yet for this part.
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