Navien
Navien Oil Burner Assembly 30021124A
Oil burner assembly for Navien LCB 700 28KW combi, regular and system boilers, in internal and external variants.
At a glance
- Part type: oil burner assembly
- Appliance family: LCB 700
£590.75
£492.29 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 oil burner assembly, part number 30021124A, is the combustion unit fitted to Navien LCB 700 oil-fired boilers. It delivers the fuel and air mixing and controlled combustion that the boiler relies on to heat the system water. This assembly is listed for the 28KW LCB 700 range across combi, regular and system variants.
Signs this part needs replacing
- Repeated burner lockouts or failure to establish a flame
- Soot deposits, dark smoke or heavy staining around the burner and combustion area
- Unstable or pulsating flame with poor combustion readings
- Combustion odours or fumes not clearing as they should
- Rough, noisy or erratic burner operation that does not respond to servicing
Before you order
- Confirm your appliance is an LCB 700 28KW model
- Identify whether your boiler is the combi, regular or system variant
- Check whether your installation is the internal or external version
- Verify the part number against the manufacturer's parts list for your appliance
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — | |
| NAVIEN LCB 700 REGULAR EXTERNAL 28KW (Serial Number 1478) | — | — | — | |
| NAVIEN LCB 700 REGULAR EXTERNAL 28KW (Serial Number 1478) | — | — | — | |
| NAVIEN LCB 700 REGULAR INTERNAL 28KW (Serial Number 1477) | — | — | — | |
| NAVIEN LCB 700 REGULAR INTERNAL 28KW (Serial Number 1477) | — | — | — | |
| NAVIEN LCB 700 SYSTEM EXTERNAL 28KW (Serial Number 1476) | — | — | — | |
| NAVIEN LCB 700 SYSTEM EXTERNAL 28KW (Serial Number 1476) | — | — | — |
Showing 10 of 12 compatible appliances.
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.