Navien
Navien Pipe Heat Exchanger Inlet 30029034A
Navien pipe heat exchanger inlet, part number 30029034A, for NCB300 and NCB500 combi boilers.
At a glance
- Part type: pipe heat exchanger inlet
£20.62
£17.18 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 pipe heat exchanger inlet is a Navien component that feeds water into the heat exchanger on NCB series combi boilers. It forms part of the hydraulic circuit on the appliance and is listed under Navien part number 30029034A. It is used across the NCB300 and NCB500 combi ranges.
Signs this part needs replacing
- Water weeping or dripping from the inlet connection to the heat exchanger
- Visible corrosion, scale or pitting on the pipe surface
- Cracking, distortion or deformation of the pipe
- Water staining or damp inside the boiler casing around the heat exchanger
- Loss of system pressure that traces back to the inlet pipework
Before you order
- Check the appliance model and serial number against the fitment list above
- Confirm the part number on the existing inlet pipe matches 30029034A
- Inspect the surrounding pipework and connections for damage that may also need attention
- Confirm whether any seals or washers are required separately for the connection
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NCB300-37K COMBI - (Serial Number 3734) | — | — | — | |
| NAVIEN NCB300-37K COMBI - (Serial Number 3734) | — | — | — | |
| NAVIEN NCB300-41K COMBI - (Serial Number 3711) | — | — | — | |
| NAVIEN NCB300-41K COMBI - (Serial Number 3711) | — | — | — | |
| NAVIEN NCB500-1S+/32K COMBI - (Serial Number 3924) | — | — | — | |
| NAVIEN NCB500-1S+/32K COMBI - (Serial Number 3924) | — | — | — | |
| NAVIEN NCB500-2S+/41K COMBI - (Serial Number 3712) | — | — | — | |
| NAVIEN NCB500-2S+/41K COMBI - (Serial Number 3712) | — | — | — | |
| NAVIEN NCB500-2S/37K COMBI - (Serial Number 3735) | — | — | — | |
| NAVIEN NCB500-2S/37K COMBI - (Serial Number 3735) | — | — | — |
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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.