Navien NCB300 Gas Combi Boiler 41kW
Product code: 541704
Navien NCB300 Gas Combi Boiler 41kW
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Product Information
The Navien NCB300 41kW is the highest capacity model in the NCB300 range, designed for large homes with multiple bathrooms. It provides central heating and instantaneous hot water without a separate cylinder.
This combi boiler delivers a domestic hot water output of 41kW with a flow rate of 16.8 litres per minute at 35°C rise. It features stainless steel heat exchangers, a 6:1 turndown ratio, and ErP A-rated efficiency. It is hydrogen ready for a 20% blend.
Compact dimensions (680 × 395 × 283mm) allow flexible installation. It meets NOx Class 6 standards and supports smart controls via OpenTherm and Navien’s own systems.
- 41kW domestic hot water output for large homes
- Flow rate up to 16.8 l/min at 35°C rise
- Stainless steel heat exchangers for long term reliability
- Compact size: 680 × 395 × 283 mm
- Compatible with natural gas and LPG
Specifications
| Brand | Navien |
|---|---|
| Width | 395 mm |
| Depth | 285 mm |
| Flow Rate | 16.8 l/h |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heating Type | Condensing |
| Height | 680 mm |
| Max Heat Input | 26.8 kW |
| Central Heating Output | 26 kW |
| Min Heat Input | 4.6 |
| Min Heat Output | 4.5 |
| Model Name / No | NCB300-41C |
| Weight | 33 kg |
| Suitable For | Larger Homes with 2 Bathrooms |
| Usage | Internal Use |
| Length Of Warranty | 5 Years |
| Water Energy Rating | A |
| Mount Type | Wall Mounted |
Supporting Documents
Delivery & Returns
- 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.
Find out more
Product Information
Product Description
The Navien NCB300 41kW is the highest capacity model in the NCB300 range, designed for large homes with multiple bathrooms. It provides central heating and instantaneous hot water without a separate cylinder.
This combi boiler delivers a domestic hot water output of 41kW with a flow rate of 16.8 litres per minute at 35°C rise. It features stainless steel heat exchangers, a 6:1 turndown ratio, and ErP A-rated efficiency. It is hydrogen ready for a 20% blend.
Compact dimensions (680 × 395 × 283mm) allow flexible installation. It meets NOx Class 6 standards and supports smart controls via OpenTherm and Navien’s own systems.
Key Features
- 41kW domestic hot water output for large homes
- Flow rate up to 16.8 l/min at 35°C rise
- Stainless steel heat exchangers for long term reliability
- Compact size: 680 × 395 × 283 mm
- Compatible with natural gas and LPG
Specifications
| Brand | Navien |
|---|---|
| Width | 395 mm |
| Depth | 285 mm |
| Flow Rate | 16.8 l/h |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heating Type | Condensing |
| Height | 680 mm |
| Max Heat Input | 26.8 kW |
| Central Heating Output | 26 kW |
| Min Heat Input | 4.6 |
| Min Heat Output | 4.5 |
| Model Name / No | NCB300-41C |
| Weight | 33 kg |
| Suitable For | Larger Homes with 2 Bathrooms |
| Usage | Internal Use |
| Length Of Warranty | 5 Years |
| Water Energy Rating | A |
| Mount Type | Wall Mounted |
Supporting Documents
Delivery & Returns
- 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.
Find out more
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