Noritz NRC111 
Tankless Water Heaters 
Review and Buying Tips

Review of Noritz NRC111 tankless water heaters with the condensing technology that produces endless and on demand supply of hot water. Find the NRC111 top features, specs, and benefits.


Models review

Noritz NRC111

Noritz water heaters from NRC111 series (available on are designed for the indoor and outdoor installation (model NRC111-SV) and indoor installation only with the direct vent (model NRC111-DV).

In both cases, water heaters use either natural gas or propane (LP) gas for residential water heating, mainly. These models are suitable for large homes and multiple applications.

They can also be used in commercial applications such as offices, mechanic shops, small restaurants, schools...

Since the NRC111 models are designed as condensing tankless water heaters, they use the residual heat from the flue gases to pre-heat the cold incoming water, and this is what increases the energy efficiency to over 90%. Thanks to the high energy efficiency, NRC111 water heaters will provide not only high performance but lower greenhouse gases, savings on utility bills and government grants as the Energy Star recognized units.


Dual heat exchangers

Noritz NRC111 tankless water heaters are equipped with the two heat exchangers. One is made of the combination of stainless steel and copper for pre-heating water and the other, commercial-grade heat exchanger, with the 25% thicker piping for efficient, durable and reliable water heating.

Flexible vent installation

Thanks to the condensing technology, Noritz NRC111 water heaters are working with the lower exhaust temperatures, so instead of using expensive stainless steel venting, they use cheaper PVC or CPVC vents.

Fully modulating Eco-burner

Both NRC111-SV and DV models are using dual flame burners for the maximum heating output and less temperature fluctuation. Thanks to the modulation, the heater's computer system automatically adjusts the burner level according to the requirements. They can work from as low as 11,000 BTU to the maximum 199,000 BTU, while providing hot water with the temperature ranging from 100 F to the maximum of 180 F. On the other side the minimum water flow is as found on other Noritz models, 0.5 gpm while maximum water flow of 11.1 gallons per minute is one of the highest.

Connecting Noritz models

Quick Connect cable allows two identical Noritz NRC111 units to provide twice the hot water capacity of one unit. For even more power and water flow, multi-system can be used, as up to 24 units can be linked and operated by a single controller.

Worry-free ignition

As other Noritz tankless water heaters, NRC111 models are not using the pilot light, but direct electronic ignition that automatically lights the burner.


Noritz condensing water heaters are not used for heating the potable water only, but for space heating also. These units have combi-system set up, which ensures versatility.

Remote control

The remote control is very simple but functional. Digital display shows the temperature and the error code which flashes when the error occurs. Other commands include the setting and ON-OFF buttons, indicators and flow meter alarm set button.

Self-diagnostic system for easy troubleshooting

The self-diagnostic onboard computer system knows when something is wrong with your water heater and will show the error codes such as 11, 29, 90, 92, 99 on the remote control display... for easier diagnostics and troubleshooting.

Safety features

  • Flame sensor
  • Thermal fuse for the overheat prevention
  • Freeze protection to - 30 F for an indoor and -4 F for outdoor models
  • Lighting protection device
  • Neutralizer overfill
  • Fan rotation detector


Models/Specs Noritz NRC111
Power (BTU) 16,000-199,900
Water flow (GPM) 0.5-11.1
max # of baths 3-4
Water/gas connections (inch) 3/4
Temperature (F) 90-140
Energy factor 0.91
Warranty 12/5


Noritz NRC111 models are the most efficient tankless water heaters. They are not using the tankless water heating technology only, but also condensing, for the greener operation. As the Energy Star approved, they save the energy, produce less NOx gases and put less waste on the environment. The manufacturer provides a warranty of 12 years on the heat exchanger.


Review, Ask and Comment

> > Noritz NRC111 review

Popular articles

Recommended stores

The Home Depot Logo