NFB-200H – Condensing Heating Boiler – 199,000 BTU
$1,010.75
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Description
NFB-200H – Condensing Heating Boiler – 199,000 BTU
Professional Grade · Ships from the USA
Genuine, brand-new equipment with full manufacturer warranty.
High-efficiency design that cuts running costs year after year.
Ships from the United States, leaves our warehouse in 24 hours.
Single Unit
- • Professional Grade
- • Genuine Product
- • Ships in 24 Hours
- • Secure Checkout
- • US-Based Support
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
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.
PZNS642636
Find answers to common questions about our products and shipping.
Who can buy refrigerants from MEIOSYS?
Refrigerants are sold only to EPA Section 608 or 609 certified technicians. You confirm your certification number at checkout. See our Refrigerant Sales Policy.
How fast do you ship?
Orders leave our US warehouse within 24 hours (next business day). Most deliveries arrive in 3–5 business days depending on your state.
Are the cylinders new and factory sealed?
Yes. All refrigerant cylinders are 100% virgin, new and factory sealed. Bulk packs and pallets ship strapped on pallets.
Do you ship to all US states?
Yes, we ship to all 50 states including California. Hazmat and freight charges, if any, are shown at checkout.
What payment methods do you accept?
All major credit cards. Every transaction is encrypted and secure.
Can I return a cylinder?
Unopened, factory-sealed cylinders can be returned within 30 days. See our Refund & Returns Policy.

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