Navien NCB-250/150H Condensing Combi-Boiler — 150,000 BTU Heating / 250,000 BTU DHW
$1,332.41
Free standard shipping within the United States. Shipping details
Largest NCB combi: 150,000 BTU/h heating input, 120,000 BTU/h net AHRI, and up to 250,000 BTU/h of domestic hot water.
- Free U.S. shippingStandard delivery included
- Ships in 1 dayDelivered in 3-5 days
- 30-day returnsUnused, uninstalled items
- Secure checkoutCard and wallet options
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 NCB-250/150H is the top of the NCB combi range. Its 150,000 BTU/h input and 120,000 BTU/h net AHRI rating give it the authority for a large house, while the 250,000 BTU/h hot water side handles a genuinely demanding fixture count.
Turndown is 11.1:1 on heating and 15:1 on domestic hot water, so the unit tracks a mild spring day and a January design day with the same appliance. As with every combi, size the heating side to a real heat loss calculation rather than to the hot water figure.
Specifications
| Type | Condensing combi-boiler (heating + domestic hot water) |
|---|---|
| Heating input | Up to 150,000 BTU/h |
| Net AHRI rating | 120,000 BTU/h |
| DHW input | Up to 250,000 BTU/h |
| Efficiency | 95% AFUE |
| Heating turndown | 11.1:1 |
| DHW turndown | 15:1 |
| Installation | Wall-hung, indoor |
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 combi-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.
Related equipment
-
Navien NPE-240S2 Condensing Tankless Water Heater — 199,000 BTU, 11.2 GPM
$709.52 Add to cart -
Navien NCB-240/130H Condensing Combi-Boiler — 130,000 BTU Heating / 199,000 BTU DHW
$1,214.81 Add to cart -
Navien NFB-200H Condensing Heating Boiler — 199,000 BTU, Stainless Fire Tube
$1,567.99 Add to cart -
Navien NCB-240/110H Condensing Combi-Boiler — 110,000 BTU Heating / 199,000 BTU DHW
$1,042.71 Add to cart
Reviews
There are no reviews yet.