Navien NFB-200H - 199,000 BTU Condensing Heating Boiler

15:1 TDR
95% AFUE – Energy Star certified
2” venting up to 65’, 3” venting up to 150'
Advanced controls with Intuitive user interface and Setup Wizard
Built-in powered connections for 3 zone valves or 3 zone pumps
Common venting up to 8 units and cascading up to 16 units
Approved for high altitude up to 10,100 ft. (NG and LP), conversion kits included
Patented stainless steel fire tube heat exchanger with non-metallic condensate base

NFB-200H premium features and benefits

2" venting up to 65';
3” up to 150’ (including schedule 40 PVC).Vent Installation Detector (VID)for added safety.

Dual Venturi system creates better combustion control, turndown ratio and easy field gas conversions.

Patented stainless steel fire tube heat exchanger Navien’s innovative heat exchanger design is ASME‑Certified,“H” Stamped, and reduces high-stress point weld failures common on other combi-boilers.

Low gas pressure operation. Negative pressure regulating gas valveensures maximum performance all the way down to 3.5" of water column on natural gas and 8" of water column on propane gas.

Advanced user interface with Setup Wizard is made easy with backlit panel, click-wheel control and intuitive text.

Built-in control for a boiler pump, 3 zone pumps or 3 zone valves

1/2" gas pipe capability up to 24' (subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.

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Collection: Navien

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NFB-200H - 199,000 BTU Condensing Heating Boiler