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NCB-240/110H - Navien Combi Boiler

NCB-240/110H - Navien Combi Boiler

Top highlights

  • Smart Controls: LCD display with quick-dial wheel and Setup Wizard for easy setup and operation.
  • Advanced Dual Heat Exchangers: Durable stainless steel for optimal efficiency and longevity.
  • High Turn Down Ratios: 15:1 for domestic hot water (DHW) and up to 8.5:1 for heating.
  • Max Heating Input: 110,000 BTU/h for robust heating performance.
  • Max Domestic Hot Water Input: 199,900 BTU/h to meet high hot water demands.
  • Versatile Gas Compatibility: Field-convertible for natural gas or propane, supporting elevations up to 10,100 ft.
  • Cascading Capability: Connect up to 15 NPE water heaters to handle higher demand.
  • Common Venting Support: Accommodates up to 7 NPE water heaters with shared venting.
  • Integrated Zone Control: Built-in powered connections for 3 zone pumps and 3 zone valves.
  • Extended Venting Options: Supports 2" venting up to 65' and 3" venting up to 150'.

Price Range: $5500-$7500

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Navien NCB-240/110H Combi Boiler
The Navien NCB-240/110H is a powerful and compact combination boiler engineered to deliver reliable home heating and continuous hot water from a single, space-saving unit. With a maximum heating input of 110,000 BTU/h and domestic hot water capacity up to 199,900 BTU/h, it’s ideal for larger homes with high heating and hot water demands. This model features smart controls, including an LCD display, quick-dial wheel, and Setup Wizard, making it exceptionally user-friendly. Built with dual stainless steel heat exchangers for durability and energy efficiency, it also offers a field-convertible gas system for natural gas or propane compatibility and supports flexible venting options for easy installation. The NCB-240/110H is designed to bring comfort, efficiency, and convenience to any residential setting.

  • Item: NCB-240/110H

  • Dimensions: 43.9cm W x 74.4cm H x 32.5cm D (17.3\ W x 29.3\ H x 12.8\ D)

  • Boiler Weight: 43.5 kg (96 lbs)

  • Boiler Weight With Water: 46.3 kg (102 lbs)

  • Installation Location: Indoor wall-hung

  • Venting Type: Forced draft direct vent

  • Ignition: Electronic ignition

  • Natural Gas Supply Pressure (Source): 3.5\ WC to 10.5\ WC

  • Propane Gas Supply Pressure (Source): 8\ WC to 13.5\ WC

  • Connection Sizes: Gas inlet

  • Power Supply: 120V AC, 60Hz

  • Materials: Casing - Cold-rolled carbon steel; Heat exchanger - Stainless steel

  • Safety Devices: Flame Rod, APS, Ignition detector, high limit switches.

  • Temperature Setting Range: 30 - 60 °C (86 - 140 °F)

Looking for a high-performance combi boiler with expert installation?

At HVAC Ontario, our Navien-trained technicians ensure your Navien NCB-240/110H combi boiler is installed to the highest standards, strictly following Navien’s guidelines. Our team receives ongoing training directly from Navien, so you can trust in the quality and precision of our work. Plus, we back every installation with industry-leading guarantees for your peace of mind:

- No Lemons Guarantee: If the heat exchanger on your new Navien NCB-240/110H combi boiler fails twice within the first 5 years, we’ll replace the entire unit at no cost to you.

- $250 No Frustration Guarantee: If your combi boiler stops working and leaves you without heating or hot water, we’ll have a technician at your home within 24-48 hours. If we fail to meet the 48-hour window, we’ll compensate you with $250 for the inconvenience.

- Next Day or $100 Off: Place your order before 12 P.M., and we guarantee next-day installation of your Navien NCB-240/110H combi boiler. If we can’t install it by the next day, you’ll receive $100 off your purchase.
Combi Boiler Without Installation: Your unit comes with a standard 1-year parts warranty for essential coverage.

Combi Boiler With Installation by HVAC Ontario: When installed by HVAC Ontario, enjoy a 10-year limited parts and labor warranty. If there’s an issue, we’ll handle it for you:

- $250 No Frustration Guarantee: If your combi boiler stops working and you’re left without heating or hot water, we’ll have a technician at your home within 24-48 hours. If we fail to meet the 48-hour window, we’ll compensate you with $250.

Customer Reviews

Voices of Satisfaction: What Our Customers Think About Us

I had arranged with Abdul to have a tankless water heater installed and my old 50 gal tank removed . Ulmo and Tankeh arrived on schedule and the whole job was done to my complete satisfaction. I would recommend them highly. Thank You HVAC Ontario

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Kerry Collins

Professional company. I got a competitive quote. Technician came on time, completed the work and cleaned up after. Took about 2 hrs to remove the old tankless and install the new unit. A smooth process and I'm happy with the work. Thank you.

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Ainee Chung

Spoke with Abdul. Very professional company. Technician Raj and Kamol came on time, completed the work and cleaned up after. Very happy with the work . Hot water is back and running.
Thank you for your professionalism.

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Kathy Toth

I had a regular hot water tank replaced with a tankless type by HVAC Ontario. Abdullah and Bilal were very helpful, courteous and professional from the start and even with after care. The technicians they sent who installed the furnace were very caring and professional as well. They walked us through how the system work. Awesome!

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Neil Abam

Abdul and the team did a great job answering all our questions - took the time out to do a site inspection at our request. We never felt pressured about any of the decisions we needed to make. And ultimately our system works great! I definitely would recommend them to anyone. You wont regret it.

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Brittany Bourassa

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