Navien
Navien Nozzle Assembly Oil 30021142A
Oil nozzle assembly for Navien LCB 700 21KW boilers, supplied under part number 30021142A.
At a glance
- Part type: nozzle assembly, oil
- Appliance family: LCB 700
£119.41
£99.51 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 oil nozzle assembly is a Navien component used in the LCB 700 series of oil-fired boilers. It forms part of the burner's oil delivery path, metering and atomising the fuel supply so it can be mixed with air and burned correctly. It is listed by Navien under part number 30021142A.
Signs this part needs replacing
- Soot deposits or blackening around the burner or flue, indicating poor combustion
- Unstable or rough flame, or a flame that will not hold after ignition
- Repeated ignition lockouts or failed light-ups on the boiler
- Falling heat output or a boiler that runs but does not reach temperature
- Combustion readings drifting outside the expected range at service
Before you order
- Confirm the boiler model is an LCB 700 21KW unit
- Check whether the appliance is the combi, regular or system variant
- Check whether the installation is internal or external
- Verify the part number 30021142A against the appliance's parts list before ordering
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 REGULAR EXTERNAL 21KW (Serial Number 1474) | — | — | — | |
| NAVIEN LCB 700 REGULAR EXTERNAL 21KW (Serial Number 1474) | — | — | — | |
| NAVIEN LCB 700 REGULAR INTERNAL 21KW (Serial Number 1472) | — | — | — | |
| NAVIEN LCB 700 REGULAR INTERNAL 21KW (Serial Number 1472) | — | — | — | |
| NAVIEN LCB 700 SYSTEM EXTERNAL 21KW (Serial Number 1471) | — | — | — | |
| NAVIEN LCB 700 SYSTEM EXTERNAL 21KW (Serial Number 1471) | — | — | — |
Showing 10 of 12 compatible appliances.
Documents & drawings
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