Navien
Navien Burner Packing 30033266A
Burner packing for Navien NCB300 combi boilers, sealing the burner assembly against the heat exchanger.
At a glance
- Part type: burner packing
- Appliance family: NCB300 series
£13.01
£10.84 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 burner packing is a sealing component used on Navien NCB300 series combi boilers. It sits at the burner assembly to seal the joint against the combustion chamber and heat exchanger face. Its role is to prevent flue gases and heat from escaping past the burner mounting.
Signs this part needs replacing
- Visible scorching, brittleness or cracking of the packing material
- Soot staining or heat marks around the burner mounting face
- Flue gas leakage detected around the burner assembly during servicing
- The packing has flattened or lost its sealing shape after removal
- Combustion readings outside the expected range that point to a leaking burner joint
Before you order
- Confirm the boiler model is an NCB300 series combi unit
- Check the part number on the existing packing or against the manufacturer's parts list
- Inspect the burner mounting face for damage before refitting
- Confirm whether any additional seals or gaskets are required for the same repair
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) | — | — | — |
Documents & drawings
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