Noritz NC1991-OD-LP Outdoor, Maximum 199,900 BTU per Hour, 9.8 Gallons Per Minute Tankless Water Heater

- Item #: BCI1999920

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Liquid Propane
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  • Hard Water Treatment Recommended

NC1991 Collection Outdoor, max. 199,900 BTU per Hour, 9.8 Gpm

The NC1991-OD-LP is a lowNOx outdoor liquid propane tankless water heater, ideal for mid-size residential settings with up to 4 showers. Posing more power than any tankless water heater in its class, the NC1991 series offers innovations such as quick-connect installation, freeze protection and high elevation adjustment to put it a step ahead of its competitors. Its turbo flow and dual flame burner combine to enable large amounts of hot water with minimal temperature fluctuations so you can continually have access to perfect temperature water. The efficiency and functionality of the NC199 series combine to help save space, water, energy and money, all while enjoying endless hot water.

Tankless Water Heater: A major improvement to the standard tank style water heaters, the NC1991 series tankless water heater packs a lot of power in a small package. The compact and efficient Noritz NC1991 saves space, energy and water while delivering endless hot water for a 4 bath home. If your needs exceed a 4 shower household, the quick-connect system enables multiple heaters to be connected and run by the same controller system. All of this functionality and efficiency are seamlessly controlled by a self-diagnostic computer system and digital remote, making it simple enough for anyone to use and benefit from.


  • High-efficiency low Nox Eco-Burner reduces emissions
  • Liquid propane tankless hot water heater
  • Quick-Connect 6 unit system capabilities
  • Temperature settings: 100-180?F with dual flame burner to reduce fluctuations
  • Thermal efficiency: 84%
  • Self-diagnostic computer system for efficient maintenance
  • Turbo flow: Up to 9.8 GPM @ 35 degree temperature rise
  • Automatic overheat protection system and air regulator
  • Resin coated PC board helps protect system
  • Includes remoter controller and cord, and anchoring screws

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 NC1991-OD-LP

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

  • Noritz NC1991-OD-LP
    Liquid Propane

*Denotes a finish or option that has been discontinued

Noritz NC1991-OD-LP Product Specifications

Owners Manual
Product Catalog
Specification Sheet
CSA Approved Yes
Collection NC1991
Configuration Tankless Water Heater
Default Temperature 120
Depth 10.6
Fuel Type Liquid Propane
Function Non-Condensing
GPM 9.8
Gas Connection 3/4"
Height 22.3
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) 185
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 NC1991-OD-LP at Research Noritz NC1991-OD-LP online. Find Noritz NC1991-OD-LP features and specifications. Get the best deal by comparing the Noritz NC1991-OD-LP today.

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