Navien NCB500 15kW Gas System Boiler
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Navien NCB500 15kW Gas System Boiler
(Approx. 3-5 working days)


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The Navien NCB500-15kW is a compact, wall-mounted condensing system boiler designed for smaller homes or well-insulated properties. It provides central heating efficiently and works with a separate hot water cylinder to deliver stored hot water.
This model offers a central heating output of 15kW and features a stainless steel heat exchanger for durability and corrosion resistance. It achieves ErP A-rated efficiency up to 93% and meets NOx Class 6 standards for low emissions. Built-in Wi-Fi connectivity allows smart control through the Navien Smart Plus App.
With dimensions of approximately 680 × 395 × 283mm, the NCB500-15kW fits easily into kitchen cupboards or utility spaces. It is hydrogen-ready for a 20% blend and includes frost protection for reliable operation in colder conditions.
- 15kW central heating output for small homes
- Stainless steel heat exchanger for corrosion resistance
- Built-in Wi-Fi for smart control
- Hydrogen-ready for 20% blend
| Brand | Navien |
|---|---|
| Width | 395 mm |
| Depth | 283 mm |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heating Type | Condensing |
| Height | 680 mm |
| Max Heat Input | 15.5 kW |
| Central Heating Output | 15 kW |
| Min Heat Input | 2.7 |
| Min Heat Output | 2.6 |
| Model Name / No | NCB500-15k |
| Weight | 27 kg |
| Usage | Internal Use |
| Length Of Warranty | 10 Years |
- 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 NCB500-15kW is a compact, wall-mounted condensing system boiler designed for smaller homes or well-insulated properties. It provides central heating efficiently and works with a separate hot water cylinder to deliver stored hot water.
This model offers a central heating output of 15kW and features a stainless steel heat exchanger for durability and corrosion resistance. It achieves ErP A-rated efficiency up to 93% and meets NOx Class 6 standards for low emissions. Built-in Wi-Fi connectivity allows smart control through the Navien Smart Plus App.
With dimensions of approximately 680 × 395 × 283mm, the NCB500-15kW fits easily into kitchen cupboards or utility spaces. It is hydrogen-ready for a 20% blend and includes frost protection for reliable operation in colder conditions.
- 15kW central heating output for small homes
- Stainless steel heat exchanger for corrosion resistance
- Built-in Wi-Fi for smart control
- Hydrogen-ready for 20% blend
| Brand | Navien |
|---|---|
| Width | 395 mm |
| Depth | 283 mm |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heating Type | Condensing |
| Height | 680 mm |
| Max Heat Input | 15.5 kW |
| Central Heating Output | 15 kW |
| Min Heat Input | 2.7 |
| Min Heat Output | 2.6 |
| Model Name / No | NCB500-15k |
| Weight | 27 kg |
| Usage | Internal Use |
| Length Of Warranty | 10 Years |
- 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.


