Noritz NR981-OD Tankless Water Heater Natural Gas 9.8GPM outdoor

Item#: NR981-ODN


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Product Details

Product Type: Tankless Heater
Application: Residential
Type: Non-Condensing
Energy Factor: 0.82
Efficiency: 84%
Gas Input: 16000 to 199900 BTU/h
Fuel Type: Natural Gas
Flow Range (GPM): 0.5 to 9.8
Min Flow (GPM): 0.5
Max Flow (GPM): 9.8
Depth (Inches): 9.4"
Weight (lbs): 55 lbs
Width (Inches): 13.8"
Height (Inches): 23.6
Max Temp (F): 180°F
Gas Connection: 3/4"
Water Connection: 3/4"
Installation Type: Outdoor Only
Warranty: 5 Year Parts/12 Year Heat Exchanger
Energy Star Rated: Yes

Noritz has engineered the Noritz NR981-OD-NG Residential Tankless Water Heater from the ground up to be a direct replacement for tank based water heaters. The combination of endless hot water, lower monthly energy bills and reliability ensure that any homeowner can benefit from purchasing a Noritz tankless hot water heater. The commercial grade copper heat exchanger provides long term reliability guaranteed to last any homeowner for decades, and an average efficiency of 84% means that tankless replacement of indirect fired water heaters is finally not only possible, but practical. A small footprint and standard inputs and outputs translate into both ease of installation and low install costs.


  • Outdoor units (OD) are designed for installation outside of the home and require no additional venting as a horizontal vent is built right into the unit
  • Endless Hot Water
  • 84% Efficiency
  • Durability and Reliability to Last for Decades
  • Durability to Last for Decades
  • Parts Warranty: 5 year
  • Residential Heat Exchanger Warranty: 12 years

  • Keypad/Thermostat Display included
  • Compatible remote controller (part RC-7651M)
  • Isolator Valve (part IK-WV-200-1-xx)
  • Freeze Protection included
  • High Elevation Adjustment included
  • Quick-Connect Cord (part QC-2)
  • Pipe Cover (part PC-2S)
  • Remote Controller Card Included
  • Compatible Remote Controller Cord (part RC-CORD10)