Description
Navien NCB-240/130HCondensing Combi-Boiler · 199,000 BTU DHW / 130,000 BTU Heating
A high-efficiency, 95% AFUE condensing combi-boiler that delivers both space heating and domestic hot water in a single wall-hung unit, designed for performance and convenience.
The unit supports both natural gas and propane, with field conversion included, and offers flexible venting options using 2″ or 3″ PVC, CPVC, polypropylene, or stainless steel. With built-in freeze protection and advanced safety controls, it’s engineered to optimize energy use while maintaining consistent comfort.
Technical specification
| Efficiency | 95% AFUE, ENERGY STAR certified |
|---|---|
| Heating input | 130,000 BTU/hr |
| DHW input | Up to 199,000 BTU/hr |
| Heating turndown ratio | 10:1 |
| DHW turndown ratio | 15:1 |
| Heat exchangers | Dual stainless steel |
| Controls | LCD display with Setup Wizard |
| Zone control | Integrated 3-zone controller for zone valves or circulators |
| Fuel | Field convertible — natural gas or propane (kit included) |
| Design | Compact wall-hung |
| Venting | 2″ or 3″, PVC, CPVC, polypropylene or stainless steel |
| Safety | Built-in freeze protection and advanced safety controls |
| Cascading | Up to 15 NPE units |
Applications
Whole-Home Comfort
Whole-home heating and on-demand hot water.
NG or LP Homes
Residential homes using natural gas or propane.
Indoor Wall-Mounted
Indoor wall-mounted installations.
High-Efficiency Systems
Projects requiring high-efficiency boiler systems.
Smart Home Ready
Smart home setups using Navien controls.
Multi-Zone Integration
Systems needing multi-zone heating integration.
Key features
- 95% AFUE efficiency rating
- 130,000 BTU/hr heating input, 199,000 BTU/hr DHW input
- Dual stainless steel heat exchangers
- 10:1 heating turndown ratio, 15:1 domestic hot water turndown ratio
- Smart controls with LCD display and Setup Wizard
- Integrated 3-zone controller for zone valves or circulators
- Field convertible from natural gas to propane (kit included)
- Compact wall-hung design
- ENERGY STAR certified
- Built-in freeze protection and advanced safety controls
- Supports cascading with up to 15 NPE units
Navien NCB-240/130H combi-boiler. Follow the installation manual, local gas and plumbing codes, and manufacturer instructions.
