Vokera
Vokera Condensing Heat Exchanger Assembly 20177653
Condensing heat exchanger assembly for Vokera Unica MAX and Vision PLUS boilers.
At a glance
- Also known as 1534644
£546.04
£455.03 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 Vokera condensing heat exchanger assembly (part number 20177653) is the primary heat exchanger used in Vokera Unica MAX and Vision PLUS condensing boilers. It transfers heat from the combustion gases to the heating and hot water circuit, and in condensing mode recovers latent heat from the flue gases. This assembly sits at the core of the boiler's heat transfer process.
Signs this part needs replacing
- Water leaking from the heat exchanger body or its connections
- Visible corrosion, scale build-up or cracking on the exchanger surfaces
- Boiler locking out or failing to fire consistently
- Reduced heating or hot water output
- Overheating or kettling noises from the boiler
Before you order
- Confirm your boiler model and GC number match the fit list above.
- Check the part number 20177653 against the existing component or the manufacturer's parts list.
- Inspect the installation for any seals, gaskets or fittings that may also need replacing.
- Ensure the boiler is isolated and drained before removing the old heat exchanger.
Compliance
| Alternative numbers | 1534644 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VOKERA UNICA MAX 30S | 41-364-14 | 41-364-14 | — | — |
| VOKERA UNICA MAX 30S LPG | 41-364-16 | 41-364-16 | — | — |
| VOKERA UNICA MAX 35C | 47-364-61 | 47-364-61 | — | — |
| VOKERA UNICA MAX 35C LPG | 47-364-63 | 47-364-63 | — | — |
| VOKERA UNICA MAX 40C | 47-364-62 | 47-364-62 | — | — |
| VOKERA UNICA MAX 40C LPG | 47-364-64 | 47-364-64 | — | — |
| VOKERA VISION PLUS 25S | 41-364-07 | 41-364-07 | — | — |
| VOKERA VISION PLUS 30S | 41-364-08 | 41-364-08 | — | — |
| VOKERA VISION PLUS 35C | 47-364-54 | 47-364-54 | — | — |
| VOKERA VISION PLUS 40C | 47-364-55 | 47-364-55 | — | — |
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.
VOKERA appliance manual — UNICA MAX 30S (GC 41-364-14), UNICA MAX 30S LPG (GC 41-364-16)
manualmanualVOKERA appliance manual — UNICA MAX 35C (GC 47-364-61), UNICA MAX 35C LPG (GC 47-364-63), UNICA MAX 40C (GC 47-364-62), UNICA MAX 40C LPG (GC 47-364-64)
manualmanualVOKERA appliance manual — VISION PLUS 25S (GC 41-364-07), VISION PLUS 30S (GC 41-364-08)
manualmanualVOKERA appliance manual — VISION PLUS 35C (GC 47-364-54), VISION PLUS 40C (GC 47-364-55)
manualNo technical questions yet for this part.
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