NCB-240/130H – Condensing Combi-Boiler – 199,000 BTU DHW / 130,000 BTU HTG
$1,490.00 $1,449.29
Navien NCB-240/130H – Condensing Combi-Boiler – 199,000 BTU DHW / 130,000 BTU HTG
The Navien NCB-240/130H is a high-efficiency, 95% AFUE condensing combi-boiler engineered to deliver powerful space heating and abundant domestic hot water from a single, compact wall-hung unit. With a heating input of up to 130,000 BTU/hr and a DHW input of up to 199,000 BTU/hr, it’s built to comfortably serve whole-home heating and on-demand hot water needs in residential applications.
At the heart of the NCB-240/130H are dual stainless steel heat exchangers, delivering durable, corrosion-resistant performance and consistent efficiency over the long term. An industry-leading 15:1 domestic hot water turndown ratio and 10:1 heating turndown ratio allow the unit to precisely match output to real-time demand, reducing energy waste and improving comfort by minimizing short-cycling.
Smart controls with an LCD display and guided Setup Wizard make installation and daily operation straightforward, while the integrated 3-zone controller supports up to three heating zones using valves or circulators — eliminating the need for additional zone control panels. The unit is field convertible between natural gas and propane, with a conversion kit included, and offers flexible venting compatibility with 2″ or 3″ PVC, CPVC, polypropylene, or stainless steel materials to suit a wide range of installation layouts.
Built-in freeze protection and advanced safety controls ensure reliable operation in a range of conditions, and the NCB-240/130H is Energy Star certified for proven energy savings. For larger-capacity projects, it supports cascading with up to 15 NPE tankless water heaters, offering a clear path to scale capacity as demand grows.
Compact, smart, and efficient, the Navien NCB-240/130H is an excellent fit for homeowners and contractors seeking a space-saving, high-performance combi-boiler for natural gas or propane residential heating systems.
Applications: Whole-home heating and on-demand hot water, residential homes on natural gas or propane, indoor wall-mounted installations, multi-zone heating systems, and smart home setups using Navien controls.
Where We Ship
We ship to all addresses within the contiguous United States. We do not currently offer international shipping.
Shipping Cost
Free standard shipping on all orders — including large freight items. No hidden fees, no minimum order required.
Order Processing
Orders are processed within 1 business day, Monday through Friday. Orders placed after 11:00 PM CST (UTC−6) will be processed the following business day.
Standard Delivery — Small & Medium Items
Freight Delivery — Large & Oversized Items
Some products — including gazebos, pergolas, outdoor storage sheds, and deck boxes — require freight shipping due to their size and weight. Here is what to expect:
- Transit Time: 3–7 business days after processing, depending on your location and the freight carrier.
- Delivery Appointment: The freight carrier will call you to schedule a delivery window. You must be available to receive the shipment.
- Curbside Delivery: The driver will deliver to your curb or driveway — not inside your home or garage.
- Inspect Before Signing: Always inspect the packaging for visible damage before signing the delivery receipt. Note any damage on the receipt before you sign — this is required to protect your claim rights.
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