Navien NCB700 54kW Gas Combi Boiler
Navien NCB700 54kW Gas Combi Boiler
(Approx. 3-5 working days)
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The Navien NCB700-54kW is the most powerful model in the NCB700 range, designed for large properties with high heating and hot water demand. It provides central heating and instantaneous domestic hot water without a separate cylinder.
This model delivers a domestic hot water output of 54kW with a flow rate of up to 22.1 litres per minute at 35°C rise. It includes stainless steel heat exchangers, a 15:1 turndown ratio for supreme efficiency, and an ErP A-rated performance of 94%. The boiler features a built-in DHW recirculation pump for faster hot water delivery and NaviCirc™ technology for easy setup of return systems. It is hydrogen-ready for a 20% blend and includes frost protection.
Compact dimensions (695 × 440 × 353 mm) allow flexible installation. It meets NOx Class 6 standards and supports smart controls via OpenTherm and Navien’s own systems.
- 54kW domestic hot water output for large homes
- Flow rate up to 22.1 l/min at 35°C rise
- Built-in DHW recirculation pump for rapid hot water
- Stainless steel heat exchangers for durability
- Hydrogen-ready for 20% blend
| Brand | Navien |
|---|---|
| Width | 440 mm |
| Depth | 353 mm |
| Flow Rate | 31 l/min |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heating Type | Condensing |
| Height | 695 mm |
| Max Heat Input | 52.4 kW |
| Central Heating Output | 34 kW |
| Min Heat Input | 3.5 |
| Min Heat Output | 3.4 |
| Model Name / No | NCB700-3S/54K |
| Weight | 46 kg |
| Usage | Internal Use |
| Water Energy Rating | A |
| Mount Type | Wall Mounted |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Navien NCB700-54kW is the most powerful model in the NCB700 range, designed for large properties with high heating and hot water demand. It provides central heating and instantaneous domestic hot water without a separate cylinder.
This model delivers a domestic hot water output of 54kW with a flow rate of up to 22.1 litres per minute at 35°C rise. It includes stainless steel heat exchangers, a 15:1 turndown ratio for supreme efficiency, and an ErP A-rated performance of 94%. The boiler features a built-in DHW recirculation pump for faster hot water delivery and NaviCirc™ technology for easy setup of return systems. It is hydrogen-ready for a 20% blend and includes frost protection.
Compact dimensions (695 × 440 × 353 mm) allow flexible installation. It meets NOx Class 6 standards and supports smart controls via OpenTherm and Navien’s own systems.
- 54kW domestic hot water output for large homes
- Flow rate up to 22.1 l/min at 35°C rise
- Built-in DHW recirculation pump for rapid hot water
- Stainless steel heat exchangers for durability
- Hydrogen-ready for 20% blend
| Brand | Navien |
|---|---|
| Width | 440 mm |
| Depth | 353 mm |
| Flow Rate | 31 l/min |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heating Type | Condensing |
| Height | 695 mm |
| Max Heat Input | 52.4 kW |
| Central Heating Output | 34 kW |
| Min Heat Input | 3.5 |
| Min Heat Output | 3.4 |
| Model Name / No | NCB700-3S/54K |
| Weight | 46 kg |
| Usage | Internal Use |
| Water Energy Rating | A |
| Mount Type | Wall Mounted |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.