Navien NHB-150H Condensing Heating Boiler — 150,000 BTU, 95% AFUE
$1,174.04
Free standard shipping within the United States. Shipping details
Wall-hung condensing heating boiler at 95% AFUE with a 15:1 turndown in the same compact 17.3″ × 23.8″ × 12.8″ cabinet.
- Free U.S. shippingStandard delivery included
- Ships in 1 dayDelivered in 3-5 days
- 30-day returnsUnused, uninstalled items
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Do I have to pay for shipping?
Not at all! We offer Free Standard Shipping on all orders within the United States. There are absolutely no hidden fees or extra costs—the price you see at checkout is the final price delivered to your door.
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.
Can I track my order?
Yes, definitely! As soon as your order ships, we’ll send you a confirmation email with your tracking number.
You can follow your delivery anytime by clicking the “Track Your Order” icon in our website menu. Simply enter your tracking number to see the latest updates on your package’s journey to your door.
The NHB-150H is the larger of the two NHB heating-only boilers listed here, and it fits in exactly the same cabinet as the 110H — a useful detail when the mechanical space is fixed and the heat loss calculation comes back higher than expected.
Output reaches 150,000 BTU/h at up to 95% AFUE with a 15:1 turndown. Like the smaller model it is heating-only, so pair it with an indirect tank or a separate water heater. Forced draft direct venting keeps the flue routing options open.
Specifications
| Type | Condensing heating boiler (space heating only) |
|---|---|
| Heating input | Up to 150,000 BTU/h |
| Efficiency | Up to 95% AFUE |
| Turndown | 15:1 |
| Dimensions | 17.3″ W × 23.8″ H × 12.8″ D |
| Weight | 80 lb |
| Venting | Forced draft direct vent |
| 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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