Skip to content

Free standard shipping on every order · Ships in 1 business day (Mon–Fri)

Home24Care

Navien

Navien™ NCB-240/110H 199,900 BTU DHW 110,000 BTU HTG Condensing Combi-Boiler

4.8 out of 5 · 6 reviews

$1,949.99

SKU NNCB240110H · Taxes calculated at checkout

In stock, ready to shipFree standard shipping
1

Secure checkout · Visa, Mastercard, Amex, Discover

Delivery
Ships in 1 business day (Mon–Fri), arrives in 1–3 business days (Mon–Fri). Order before 11:00 PM CST (UTC −6) to ship the next business day.
Returns
90 days from delivery, defective or not. No restocking fee. Approved refunds land within 7 business days.
Warranty
Three-Year Limited Warranty against manufacturing defects under normal use conditions — or the manufacturer's term where that is longer.

Questions before you order? Call +1 575 271 0768

Product details

Domestic hot water runs to 199,900 BTU on this unit while the heating side is rated 110,000 BTU, which suits a house with more radiation to feed than the smaller NCB models can cover. Stainless steel dual heat exchangers do the work, with 15:1 turndown on hot water and up to 10:1 on heating.

The cabinet includes powered connections for three zone pumps or three zone valves, an LCD display with a quick dial, and a setup wizard for commissioning. Cascading covers up to 15 units and common venting up to 7. Vent runs are 2-inch to 65 feet or 3-inch to 150 feet. Coverage is one year labor, five years parts, and ten years on the heat exchanger.

Customer reviews

What people say about buying from us

4.8 out of 5 from 6 store reviews. These cover the buying experience across our catalog, not this product alone.

  • Arrived early and packed properly

    Ordered on a Thursday and it was on a pallet outside my garage Monday morning. Every board was numbered and the hardware came in labelled bags, so we did not have to guess at anything. Two of us had it standing by Sunday afternoon.

    Marcus T.· Round Rock, TXVerified order

  • Lumber quality is genuinely good

    I have built two of these from other brands and returned one for warped boards. Not a single warped piece in this kit. The kids have been on it every day since we finished it.

    Dana R.· Columbus, OHVerified order

  • Correct weight, factory sealed, clean invoice

    Ordered Thursday, on the truck Friday. Cylinder was sealed and the weight was exactly right. The invoice had everything my bookkeeper needed, which is more than I can say for the supplier I was using before.

    Victor A.· Hialeah, FLVerified order

You might also like

All tankless water heaters →