Noritz NCC1991-DV-LP 199,900 BTU Commercial Condensing Indoor Lenox (Direct Vent) Liquid Propane On Demand Tankless Water Heater.

- Item #: BCI1981679

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  • Hard Water Treatment Recommended
  • Adapter Recommended

NCC199 Collection 199,900 BTU Commercial Condensing Indoor (Direct Vent)

The NCC1991-DV-LP is the next generation in commercial tankless hot water heater systems. This liquid propane condensing heater utilizes a dual heat exchange of stainless steel and copper, using their strengths to enable a tankless water heater to perform at an efficiency level of 93%, while reducing carbon dioxide output and lowering exhaust temperatures. Not only will you be saving the usual space, time and energy you expect from Noritz tankless heaters, but the venting accessories now save you even more money as the NC1991 is PVC compatible. The versatility of the NC series quick connect system and ease of use and maintenance with freeze protection, elevation adjustment, and system remote controller remains intact, so you sacrifice nothing with the NC1991 condensing unit.

Direct Vent: The NCC199 direct vent tankless water heater (condenser) enables your system to be installed in tight spaces indoors without the worry of combustion. Now, with the stainless steel and copper dual heat exchanger system, you can use PVC to safely vent the exhaust enabling you to save big on tankless water heater accessories. The quick connect system also enables multiple heaters to be connected and run by the same controller system for increased hot water demands. All of this functionality and efficiency are seamlessly controlled by a self-diagnostic computer system and digital remote, ensuring there is always perfect non-varying hot water for everyone to enjoy.


  • Liquid propane condensing tankless hot water heater with new LowNOx
  • Quick-Connect 24 unit system capabilities
  • Dual flame burner to reduce temperature fluctuations
  • Thermal efficiency: 93%
  • Self-diagnostic computer system for efficient maintenance
  • Turbo flow: Up to 8.4 GPM @ 45 degree Fahrenheit temperature rise
  • Recirculation compatible
  • Compatible with PVC venting (adapter required)
  • 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 NCC1991-DV-LP

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

  • Noritz NCC1991-DV-LP
    Liquid Propane

*Denotes a finish or option that has been discontinued

Noritz NCC1991-DV-LP Product Specifications

Owners Manual
Installation Sheet
Product Catalog
Specification Sheet
CSA Approved Yes
Collection NCC199
Configuration Tankless Water Heater
Default Temperature 120
Depth 9.4
Direct Vent Yes
Energy Factor .94
Energy Star Yes
Fuel Type Liquid Propane
Function Non-Condensing
GPM 8.4
Gas Connection 3/4"
Height 24.4
Ignition Type Electronic
Indoor Installation Yes
Low Lead Compliant Yes
Maximum Gas Input 199900
Natural Gas Pressure (Max) 14
Natural Gas Pressure (Min) 8
Natural Gas Thermal Efficiency 94%
Outdoor Installation No
Product Weight 73
Temperature (Max) 180
Temperature (Min) 100
UL Listed No
Voltage 120
Water Connection 3/4"
Water Pressure (Max) 150
Water Pressure (Min) 15
Width 18.4

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