Navien
Navien Main Heat Exchanger 30018818A
Navien main heat exchanger, part 30018818A, suitable for NPE-AWE CE-32A and NPE-SWE CE-32S boilers.
£733.01
£610.84 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 Navien main heat exchanger, part number 30018818A, is the primary heat transfer component used in Navien NPE-AWE and NPE-SWE series boilers. It transfers heat from the combustion process to the water circuit. This is a service component intended for replacement when the existing exchanger is damaged, blocked or no longer performing correctly.
Signs this part needs replacing
- Water leaking from the heat exchanger body or its connections
- Reduced hot water output or intermittent heating
- Boiler fault codes relating to the heat exchanger or water flow
- Visible corrosion, scale build-up or pitting on the exchanger
- Unusual noises from the exchanger during operation
Before you order
- Confirm the boiler model and serial number against the fitment list
- Check the existing part number 30018818A matches the unit being replaced
- Verify the fault is with the heat exchanger rather than another component such as a sensor or pump
- Ensure the system is isolated and drained before removal
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NPE-AWE CE-32A - (Serial Number 5095) | — | — | — | |
| NAVIEN NPE-AWE CE-32A - (Serial Number 5095) | — | — | — | |
| NAVIEN NPE-SWE CE-32S - (Serial Number 5096) | — | — | — | |
| NAVIEN NPE-SWE CE-32S - (Serial Number 5096) | — | — | — |
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.
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