Navien NFB-200H Condensing Heating Boiler
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
- 5.1 cm venting up to 1981.2 cm, 7.6 cm venting up to 4572 cm
- 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 10,3048 cm (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
5.1 cm venting up to 1981.2 cm;
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 8.9 cm of water column on natural gas and 20.3 cm 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
1/5.1 cm gas pipe capability up to 731.5 cm (subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.
PZNS642636
Most orders ship within 1-3 business days.
All major cards accepted, protected checkout.
New and factory-reconditioned items are covered. See product details for warranty length.
Orders are processed within 1-3 business days. Large equipment ships via freight with delivery scheduled by appointment. See our Shipping Policy for details.
Most items can be returned within 30 days of delivery for a full refund, less original shipping costs. See our Refund Policy for full details.
Factory-reconditioned items are inspected and serviced by the manufacturer to meet original performance specifications, and are covered by warranty. Check this product's title and description to confirm its condition.
Yes. Manufacturer warranty terms apply as noted on this product page. Contact us if you need help with a warranty claim.
Have a question about fit, specs, or which model is right for you? Contact us and we'll help you decide.
Customer reviews
Write a review
Really happy with this purchase
My old boiler finally gave up, so I replaced it with this one and the difference is night and day. It looks great in our kitchen and several guests have asked where we got it. Happy with the purchase overall and would buy again. It's a bit bulkier than the pictures suggested, so measure your space first.
Very pleased overall
This boiler has honestly exceeded what I expected for the price. The finish holds up well and hasn't shown any wear after regular use.
Very pleased overall
I was skeptical about the listed spec rating but it turned out to be more than enough for our needs. Performance-wise it handles everything we throw at it without breaking a sweat. Worth every penny in our opinion.