Navien
Navien Oil Burner Assembly 30021123A
Oil burner assembly 30021123A for Navien LCB 700 21KW boilers, covering Combi, Regular and System models 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 oil burner assembly is a Navien component for the LCB 700 series of oil-fired boilers. It carries the combustion process within the appliance, delivering and atomising the oil supply for ignition and sustained firing. This assembly is listed for the 21KW LCB 700 range across Combi, Regular and System configurations.
Signs this part needs replacing
- Repeated burner lockouts that cannot be cleared by routine servicing
- Flame failure on start-up or during a firing cycle
- Heavy sooting, smoke or a persistent smell of kerosene around the appliance
- Unstable or noisy combustion, including pulsation or rumbling at the burner
- Combustion readings that cannot be brought back within tolerance after cleaning and adjustment
Before you order
- Confirm the appliance is an LCB 700 21KW model before ordering
- Identify whether the boiler is the Combi, Regular or System variant
- Identify whether the installation is internal or external
- Check the appliance serial number against the model listing to confirm compatibility
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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