Description
Navien NCB-H Series130 MBH Condensing Combi Boiler
Puts 130 MBH of heating capacity and up to 10.4 GPM of domestic hot water into one wall-hung cabinet, with a 15:1 turndown ratio on the DHW side. That wide modulation range holds a steady shower temperature at low draw instead of swinging hot and cold, and keeps the burner running at part load through most of the heating season.
Runs on natural gas or propane, mounts on the wall in a compact 12-4/5 in. deep cabinet, and operates on standard 120V power.
Technical specification
| Type | Condensing combi boiler (space heating + DHW) |
|---|---|
| Heating capacity | 130,000 BTU (130 MBH) |
| Domestic hot water flow | Up to 10.4 GPM |
| DHW turndown ratio | 15:1 |
| Heat exchanger | Stainless steel |
| Efficiency | 95% AFUE |
| Venting | Direct-vent sealed combustion, sidewall, PVC or polypropylene, no chimney |
| Fuel | Natural gas or propane |
| Cabinet depth | 12-4/5 in., wall-mounted |
| Power | Standard 120V |
| Certification | ENERGY STAR qualified |
Installation notice
Installation must be performed by a licensed gas heating contractor.
Navien NCB-H Series combi boiler. Follow the installation manual, local gas and plumbing codes, and manufacturer instructions.




