Navien NFB-200H Condensing Heating Boiler — 199,000 BTU, Stainless Fire Tube
$1,567.99
Free standard shipping within the United States. Shipping details
ENERGY STAR certified 95% AFUE heating boiler: 199,900 BTU/h input, 183,000 BTU/h DOE capacity, 15:1 turndown.
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- 30-day returnsUnused, uninstalled items
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How long will it take for my order to arrive?
We work hard to get your equipment to you as fast as possible. Most orders are processed within 1 business day, and transit typically takes 2-4 business days. On average, you can expect your package at your doorstep within 3-5 business days.
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The NFB-200H is the heavyweight of the heating-only boilers here. Its patented stainless steel fire tube heat exchanger sits over a non-metallic condensate base, a combination chosen for how condensing boilers actually fail — corrosion at the wet end.
Input runs to 199,900 BTU/h with a DOE heating capacity of 183,000 BTU/h, at 95% AFUE and ENERGY STAR certified. A 15:1 turndown lets one large appliance match a small shoulder-season load without short-cycling, which is what protects the heat exchanger over the long run.
Specifications
| Type | Condensing heating boiler (space heating only) |
|---|---|
| Heating input | Up to 199,900 BTU/h |
| DOE heating capacity | 183,000 BTU/h |
| Efficiency | 95% AFUE |
| Certification | ENERGY STAR certified |
| Turndown | 15:1 |
| Heat exchanger | Patented stainless steel fire tube, non-metallic condensate base |
| Application | Residential and light commercial |
Before you order
Check the published Navien documentation for this model against the property: heat loss or hot water demand, gas supply and meter capacity, gas line sizing, venting route and materials, condensate disposal, electrical supply, and clearances. A condensing heating boiler that is oversized for the load is not a safer choice — it cycles more and modulates less.
Grabllo sells equipment only. Gas, venting, electrical, and hydronic work must be carried out by an appropriately licensed professional, with any permits the local jurisdiction requires. Manufacturer warranty terms are set by Navien and normally depend on qualified installation and registration.
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