Noritz NR981-OD-LP Outdoor, Maximum 199,900 BTU per Hour, 9.8 Gallons Per Minute Tankless Water Heater

- Item #: BCI1999924

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Liquid Propane
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  • Hard Water Treatment Recommended

NR981 Collection Outdoor, max, 199,900 BTU per Hour, 9.8 Gpm

The NR981-OD-LP has more power than any tankless water heater in its class. This low NOx outdoor liquid propane 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.

Tankless Water Heater: A major improvement to the standard tank style water heaters, the NR981 series tankless water heater packs a lot of power in a small package. The compact and efficient Noritz NR981 saves space, energy and water while delivering endless hot water for mid-size residential applications. If your hot water needs expand, the quick-connect system enables multiple heaters to be connected and run by the same controller system in the same efficient and effective manner. 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


  • High-efficiency low Nox Eco-Burner reduces emissions
  • Liquid propane tankless hot water heater
  • Energy Factor: .86
  • 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

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-OD-LP

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

  • Noritz NR981-OD-LP
    Liquid Propane

*Denotes a finish or option that has been discontinued

Noritz NR981-OD-LP Product Specifications

Owners Manual
Product Catalog
Specification Sheet
CSA Approved Yes
Collection NR981
Configuration Tankless Water Heater
Default Temperature 120
Depth 9.4
Fuel Type Liquid Propane
Function Non-Condensing
GPM 9.8
Gas Connection 3/4"
Height 23.6
Ignition Type Electronic
Indoor Installation No
Low Lead Compliant Yes
Maximum Flow Rate 9.8
Maximum Gas Input 199900
Natural Gas Pressure (Max) 14
Natural Gas Pressure (Min) 8
Natural Gas Thermal Efficiency 84%
Outdoor Installation Yes
Product Weight 54
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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