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The Noritz NR111-SV-NG has been discontinued
Rinnai RLi Series 09
Rinnai RL94iN

Interior, 9.4 GPM, Natural Gas, 83% Efficiency Tankless Water Heater

With a Noritz tankless water heater you will get an endless supply of hot water.  Tankless water heaters heat water on demand, and that means you never have to worry about running out of hot water.  Compared to a traditional water heater, tankless water heaters are also very small in size and can be installed virtually anywhere. 

Tankless water heaters also run more efficiently than a traditional water heater.  These models require no pilot light, and can save about half the cost of your current water heating bill since there is no reheating of water as with traditional water heaters.  This water heater is a high efficiency, fully condensing appliance.  Unlike a traditional tankless water heater, a condensing type captures heat from the exhaust gas and uses it to preheat the incoming cold water as it passes through the secondary heat exchanger.

Standard Features:

  • 84% Efficiecy
  • Copper heat exchanger
  • Fully modulating dual flame burner and direct ignition
  • 25% thicker copper piping for better thermal efficiency
  • Digital remote included
  • Direct vent to the outdoors
  • Thermal fuse provides overheat protection
  • 100° - 180°F Temperature range
  • 2 units can be linked and operated by a single system controller
  • Resin coated PC board

Installation Placement

Equipment can be placed inside or outside of the home.

Installation Placement
Exterior Interior
Maximum Input BTU

The maximum amount of heat that the unit can produce. The amount delivered into the space will be the input minus the efficiency loss also know as the output. For example a 100000 btu furnace at 80% efficiency will give you 80000 out btus of heat. The same size furnace at 95% will give you 95000 btus of heat.

Maximum Input BTU
250000 BTU
Minimum Input BTU

The amount of heat produced by the unit at the lower stage of heat. Having two stages of heat will allow for more consistent operation and greater comfort in the home.

Minimum Input BTU
11000 BTU
Hot Water Capacity Range

The gallons per minute of hot water that the unit is rated to provide. The actual amount of hot water generated can vary depending on your ground water temperature.

Hot Water Capacity Range
0.5 - 11.1 GPM
Thermal Efficiency

The percentage of the heat generated by combustion that goes into heating. The remaining percentage goes out the flue. The higher the efficiency rating, the lower the cost of operation.

Thermal Efficiency
84 %
Power Source
120 VAC (60Hz)
Fuel Type
Natural Gas
Ignition Type
Direct Ignition
Connection Type
NPT (Threaded)
Temperature Range

The minimum and maximum temperatures on the thermostat.

Temperature Range
100 - 180 °F
Piping Connections - Water
3/4 Inch(es)
Exhaust Venting
Product Weight
62 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
18 3/10 Inches
9 2/5 Inches
24 1/5 Inches
Heat Exchanger Warranty
12 Years
Parts Warranty
5 Years