Navien Boilers
Compare Navien boilers including combi, regular and system boilers and gas, oil and electric boilers.
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Navien Combi Boilers
Navien combi boilers a wall mounted units with a small footprint that are commonly located in a kitchen or bathroom and concealed within a cupboard and supply quick access to hot water directly from the mains water supply to radiators and taps. Navien combi boilers are energy efficient units with low running costs that are ideally suited to apartments and small to medium sized houses with 1 to 2 bathrooms. Navien combi boilers don’t require hot water tanks or cylinders as a regular boiler or system boiler does therefore making these Navien combi boilers cheaper to install.
| Boiler | Efficiency | Output | Warranty | MPN | Boiler Type |
|---|---|---|---|---|---|
| Navien NCB 24kW Gas Combi Boiler | 92% | 24kW | 7 Years | Combi | |
| Navien NCB 28kW Gas Combi Boiler | 93% | 28kW | 7 Years | Combi | |
| Navien NCB 34kW Gas Combi Boiler | 93% | 34kW | 7 Years | Combi | |
| Navien NCB 40kW Gas Combi Boiler | 93% | 40kW | 7 Years | Combi |
Navien System Boilers
| Boiler | Efficiency | Output | Warranty | MPN | Boiler Type |
|---|---|---|---|---|---|
| Navien LCB700 21kW External Oil System Boiler | 93% | 21kW | 10 Years | System | |
| Navien LCB700 21kW Internal Oil System Boiler | 93% | 21kW | 10 Years | System | |
| Navien LCB700 28kW External Oil System Boiler | 93% | 28kW | 10 Years | System | |
| Navien LCB700 28kW Internal Oil System Boiler | 93% | 28kW | 10 Years | System | |
| Navien LCB700 36kW External Oil System Boiler | 93% | 36kW | 10 Years | System | |
| Navien LCB700 36kW Internal Oil System Boiler | 93% | 36kW | 10 Years | System | |
| Navien NCB 20kW Gas System Boiler | 92% | 20kW | 7 Years | System | |
| Navien NCB 23kW Gas System Boiler | 93% | 23kW | 7 Years | System | |
| Navien NCB 28kW Gas System Boiler | 93% | 28kW | 7 Years | System | |
| Navien NCB 33kW Gas System Boiler | 93% | 33kW | 7 Years | System |
Navien Regular Boilers
| Boiler | Efficiency | Output | Warranty | MPN | Boiler Type |
|---|---|---|---|---|---|
| Navien LCB700 21kW External Oil Regular Boiler | 93% | 21kW | 10 Years | Regular | |
| Navien LCB700 21kW Internal Oil Regular Boiler | 93% | 21kW | 10 Years | Regular | |
| Navien LCB700 28kW External Oil Regular Boiler | 93% | 28kW | 10 Years | Regular | |
| Navien LCB700 28kW Internal Oil Regular Boiler | 93% | 28kW | 10 Years | Regular | |
| Navien LCB700 36kW External Oil Regular Boiler | 93% | 36kW | 10 Years | Regular | |
| Navien LCB700 36kW Internal Oil Regular Boiler | 93% | 36kW | 10 Years | Regular |
| Boiler | Error / Fault Code | Fault Description |
|---|---|---|
| Combi and System | 003 | Ignition failure – manual reset needed |
| Comb and System | 004 | False flame error – the boiler will auto-reset |
| Combi and System | 012 | Flame loss – reset the boiler |
| Combi and System | 016 | Heat exchanger overheated – try manually resetting the boiler |
| Combi and System | 030 | Abnormal exhaust temperature – try manually resetting the boiler |
| Combi and System | 046 | Abnormal operation: Heat exchanger overheating – the boiler should auto-reset |
| Combi and System | 047 | Abnormal operation: Exhaust thermostat error – a manual reset is needed if it the boiler doesn’t auto-reset |
| Combi and System | 060 | Abnormal operation: Dual venturi limit switch – boiler will auto-reset |
| Combi and System | 109 | Abnormal operation: Fan error – the boiler needs resetting |
| Combi and System | 110 | Exhaust blockage (condensate blockage) – reset the boiler |
| Combi and System | 127 | Abnormal operation: Air pressure switch (APS) issue – reset the boiler |
| Combi and System | 205 | Heating supply thermistor open or short circuit – boiler should auto-reset |
| Combi and System | 218 | Alarm error: Heating return thermistor open or short circuit |
| Combi and System | 302 | Low water pressure – boiler should auto-reset |
| Combi and System | 352 | High water pressure – boiler should auto-reset |
| Combi and System | 353 | Abnormal operation: Water pressure sensor error – boiler should auto-reset |
| System | 407 | Abnormal operation: Hot water outlet thermistor – alarm error |
| System | 421 | Abnormal operation: Cold water inlet thermistor Auto reset should automatically occur |
| Combi and System | 480 | Abnormal operation: External domestic hot water (DHW) tank outlet thermistor – alarm error |
| Combi and System | 515 | Abnormal operation: Relay feedback (PCB) – the boiler needs to be reset |
| Combi and System | 517 | Abnormal operation: Dual in-line package (DIP) switch setting (PCB) – boiler needs to be reset |
| Combi and System | 594 | Abnormal operation: EEPROM (PCB) – contact an engineer |
| Combi and System | 615 | Abnormal operation: Input and memory (MCU) – try resetting the boiler |
| Combi and System | 740 | Abnormal operation: Outdoor temperature sensor – boiler should automatically reset |
| Combi and System | 782 | Abnormal operation: Main panel communication – boiler should auto-reset |
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