Noritz NR981-DVC-NG Indoor Concentric Vent, Maximum 199,900 BTU per Hour, 9.8 Gallons Per Minute Tankless Water Heater

- Item #: BCI1999923

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Natural Gas
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  • Hard Water Treatment Recommended

NR981 Collection Indoor Concentric Vent, max. 199,900 BTU per Hour, 9.8 Gpm

The NR981-DVC-NG has more power than any tankless water heater in its class. This low NOx direct vent natural gas tankless water heater is engineered to last, and provides sufficient hot water for up to 4 showers with a single unit. The NR981 can accommodate the most demanding residential applications, and can easily expand along with your hot water needs by connecting two units together with the quick-connect system. Its dual flame burner, safety lock-out, freeze protection and built in elevation adjustment make certain that you not only have sufficient hot water but that it's temperature is always just the way you like it.

Direct Vent: The NR981 direct vent tankless water heater enables your system to be installed in tight spaces indoors without the worry of combustion. Attach your direct vent unit to Noritz's stainless steel N-Vent system to ensure proper ventilation and a clean lasting look. The quick connect system also enables multiple heaters to be connected and run by the same controller system for increased hot water demands. A dual flame burner and turbo flow output combine to minimize temperature variations while efficiently heating large amounts of water. All of this functionality and efficiency are seamlessly controlled by a self-diagnostic computer system, ensuring the safety of your home and that there is always perfect non-varying hot water for everyone to enjoy. (PVC can not be used for ventilation purposes.)


  • High-efficiency low Nox Eco-Burner reduces emissions
  • Natural gas tankless hot water heater
  • Energy Factor: .83
  • Thermal efficiency: 84%
  • Turbo flow: Up to 9.8 GPM @ 35 degree Fahrenheit temperature rise
  • Resin coated PC board for protection and durability
  • Self-diagnostic onboard computer system
  • Dual flame burner to reduce temperature fluctuations
  • Overheat and freeze protection systems installed
  • PVC cannot be used for venting purposes.

Introducing the latest advancements in tankless water heater technology for your home, Noritz tankless hot water heaters are both eco-friendly and energy efficient, providing savings up to 40% in utility costs. Their gas water heaters warm water on demand, which means you'll always have hot water and it will never run out.

Additional Noritz Links

Our SKU: Noritz NR981-DVC-NG

This product is listed under the following manufacturer number(s):

  • Noritz NR981-DVC-NG
    Natural Gas

*Denotes a finish or option that has been discontinued

Noritz NR981-DVC-NG Product Specifications

Product Catalog
Specification Sheet
Owners Manual
Installation Sheet
CSA Approved Yes
Collection NR981
Configuration Tankless Water Heater
Default Temperature 120
Depth 9.4
Direct Vent Yes
Fuel Type Natural Gas
Function Non-Condensing
GPM 9.8
Gas Connection 3/4"
Height 23.6
Ignition Type Electronic
Indoor Installation Yes
Low Lead Compliant Yes
Maximum Flow Rate 9.8
Maximum Gas Input 199900
Natural Gas Pressure (Max) 10.5
Natural Gas Pressure (Min) 4
Natural Gas Thermal Efficiency 84%
Outdoor Installation No
Product Weight 58
Temperature (Max) 140
Temperature (Min) 100
Voltage 120
Water Connection 3/4"
Water Pressure (Max) 150
Water Pressure (Min) 15
Width 13.8

Installation Resource Center

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Buy the Noritz NR981-DVC-NG at Research Noritz NR981-DVC-NG online. Find Noritz NR981-DVC-NG features and specifications. Get the best deal by comparing the Noritz NR981-DVC-NG today.

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