Description
Navien NFB-200HCondensing Heating Boiler · 199,000 BTU
A high-efficiency condensing heating boiler designed for residential and light commercial applications, rated at 95% AFUE with a DOE heating capacity of 183,000 BTU/hr.
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.
Technical specification
| Type | Condensing heating boiler (heating-only) |
|---|---|
| Input | Up to 199,900 BTU/hr |
| DOE heating capacity | 183,000 BTU/hr |
| Efficiency | 95% AFUE, ENERGY STAR certified |
| Turndown ratio | 15:1 |
| Heat exchanger | Patented stainless steel fire tube, ASME-certified, “H” stamped, non-metallic condensate base |
| Venting | 2″ up to 65 ft, 3″ up to 150 ft (including schedule 40 PVC), with Vent Installation Detector (VID) |
| Gas valve | Negative pressure regulating, operates down to 3.5″ w.c. on natural gas and 8″ w.c. on propane |
| Gas piping | 1/2″ gas pipe capability up to 24 ft (subject to local codes) |
| Fuel | Field convertible with included gas conversion kits (NG and LP) |
| Controls | Backlit panel, click-wheel control, Setup Wizard |
| Zone connections | Built-in control for a boiler pump, 3 zone pumps or 3 zone valves |
| Common venting / cascading | Common venting up to 8 units; cascading up to 16 units |
| High-altitude approval | Up to 10,100 ft (NG and LP) |
| Connectivity | NaviLink Wi-Fi compatible for remote control and monitoring (sold separately) |
Applications
Residential Hydronic
Residential hydronic heating systems.
Light Commercial
Light commercial buildings.
Scalable Boiler Banks
Installations requiring scalable boiler banks via cascading.
System Replacement
High-efficiency replacements for aging heating systems.
Multi-Zone Systems
Multi-zone systems with valves or pumps.
Indoor Wall-Hung
Indoor wall-hung boiler installations with flexible venting options.
Key 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
- Dual Venturi system for better combustion control, turndown ratio and easy field gas conversions
- NaviLink Wi-Fi compatible for remote control and monitoring (sold separately)
Navien NFB-200H boiler. Follow the installation manual, local gas and plumbing codes, and manufacturer instructions.
