Navien NCB500 1S+/32K 32kW Combi Boiler Compact Hydrogen Ready with 93 Percent ErP Efficiency
Navien NCB500 1S+/32K 32kW Combi Boiler features a slim 283mm design, 93% ErP efficiency, hydrogen-ready support, and a 10-year warranty for long-term, quiet performance.
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- Estimated Delivery: For most items (over 99% of our products), orders placed before 3pm on working days will be dispatched the same day with our Fast DELIVERY 1st class service. For the rare items not immediately in stock, dispatch may take 1-3 working days after receiving your order. If your order cannot be dispatched the same day, we will notify you via email.
- For boilers: We aim to dispatch on the next working day. However, in some cases, it may take 2-3 working days to dispatch. Rest assured, we will always strive for the fastest possible turnaround.
The Navien NCB500 1S+/32K 32kW Combi Boiler is engineered for optimal energy savings, seamless installation, and future energy adaptability. Measuring just 283mm in depth, it fits discreetly into kitchen cupboards or tight utility spaces—ideal for compact homes.
Delivering an ErP efficiency of 93%, this hydrogen-ready unit supports up to a 20% hydrogen blend, ensuring you’re prepared for evolving energy standards. With a DHW output of 32kW and a flow rate of 13.1 l/min, it offers high-demand performance with constant, stable hot water delivery.
Advanced features include flow adjustment and auto mixing valves for accurate domestic hot water control, stainless steel heat exchangers for lasting durability, and a quiet 48 dB operation for low-noise comfort.
The intuitive text-driven digital display with a built-in two-channel timer simplifies use, while compatibility with the Navien Smart Service Toolkit streamlines diagnostics and maintenance. Backed by a 10-year warranty, this boiler delivers reliability, innovation, and efficiency in one sleek design.
Key Features
Compact Design – Slim 283mm depth fits neatly into cupboards and narrow spaces
High Efficiency – 93% ErP rating for reduced energy consumption
Hydrogen Ready – Supports 20% hydrogen blend for future sustainability
Stainless Steel Heat Exchangers – Long-lasting performance and corrosion resistance
Advanced Water Control – Flow adjustment and auto mixing valves ensure temperature stability
Digital Display Panel – Easy-to-use interface with built-in two-channel timer
Quiet Operation – Low 48 dB noise level provides comfortable daily use
Smart Service Toolkit Compatible – Enables efficient diagnostics and maintenance
10-Year Warranty – Long-term peace of mind and manufacturer assurance
Applications
Small to Medium Homes – Ideal for households needing compact, high-efficiency heating
Cupboard Installations – Designed for tight or hidden locations
Sustainable Heating Upgrades – Perfect for eco-conscious home improvements
Technical Specifications:
| Feature | Details |
|---|---|
| Product Name | Navien NCB500 1S+/32K 32kW Combi Boiler |
| Model Number | PNCB5000032L002 |
| Fuel Type | Natural Gas / LPG |
| Heat Output (CH) | 26 kW |
| DHW Output (Min/Max) | 4.6 / 32.0 kW |
| DHW Flow Rate (35°C Rise) | 13.1 l/min |
| CH Condensing Max Output | 28.2 kW |
| ERP Rating | A |
| SEDBUK SAP 2009 Rating | 89% |
| Noise Level | 48 dB |
| Max Vertical Flue (125mm) | 28 meters |
| Max Vertical Flue (100mm) | 8 meters |
| Max Horizontal Flue (125mm) | 27 meters |
| Max Horizontal Flue (100mm) | 8 meters |
| NOx Class | 6 |
| Solar Compatible | Yes |
| Warranty | 10 Years |
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