Navien NFB-200H – Condensing Heating Boiler – 199,000 BTU
The Navien NFB-200H is a high-efficiency condensing heating boiler designed for residential and light commercial applications. Rated at 95% AFUE and Energy Star certified, it delivers up to 199,900 BTU/hr input with a DOE heating capacity of 183,000 BTU/hr. The boiler features a 15:1 turndown ratio for precise load matching and energy savings. Its patented stainless steel fire tube heat exchanger is paired with a non-metallic condensate base for durability and corrosion resistance. The NFB-200H includes advanced controls, supports common venting and cascading, and is approved for high-altitude installations.
Features:
- 95% AFUE – Energy Star certified
- 15:1 turndown ratio for efficient performance across variable loads
- Patented stainless steel fire tube heat exchanger with non-metallic condensate base
- 2″ venting up to 65 ft, 3″ venting up to 150 ft
- Advanced controls with intuitive interface and Setup Wizard
- Built-in powered connections for 3 zone valves or 3 zone pumps
- Common venting for up to 8 units and cascading for up to 16
- Approved for high altitudes up to 10,100 ft (NG and LP)
- Field convertible with included gas conversion kits
- NaviLink Wi-Fi compatible for remote control and monitoring (sold separately)
Applications:
- Residential hydronic heating systems
- Light commercial buildings
- Installations requiring scalable boiler banks
- High-efficiency replacements for aging systems
- Multi-zone systems with valves or pumps
- Indoor wall-hung boiler installations with flexible venting options
