Navien NCB-190/080H – Condensing Combi-Boiler – 160,000 BTU DHW / 80,000 BTU HTG
The Navien NCB-190/080H is a high-efficiency condensing combi-boiler that delivers both hydronic space heating and domestic hot water from a single, compact wall-hung unit. With a 95% AFUE rating and up to 80,000 BTU/hr heating input, it provides consistent warmth and efficiency for a wide range of home sizes. The domestic hot water system delivers up to 160,000 BTU/hr with a 15:1 turndown ratio and 4.3 GPM flow rate at a 37°C rise, supporting simultaneous use across multiple fixtures.
Constructed with dual stainless steel heat exchangers for long-term durability and corrosion resistance, the NCB-190/080H is equipped with smart control features, built-in pumps, and field conversion capability between natural gas and propane. It supports cascading and common venting with NPE water heaters, making it an adaptable solution for residential heating and hot water needs.
Features:
- 95% AFUE energy efficiency
- 160,000 BTU/hr DHW input and 80,000 BTU/hr heating input
- Dual stainless steel heat exchangers
- 15:1 DHW turndown ratio
- Smart control with Setup Wizard and backlit LCD
- Built-in zone pumps and zone valve terminals
- Compatible with cascading and common venting setups
- Field convertible for natural gas or propane
- Compact wall-hung design
- Flexible 2″ or 3″ venting options
Applications:
- Whole-house hydronic space heating
- On-demand domestic hot water
- Homes using natural gas or propane
- New construction or system replacements
- Residences requiring compact, wall-mounted heating solutions
- Installations requiring energy-efficient and low-maintenance operation
