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Rinnai CHS199100N Demand Duo 119 GAL Commercial Hybrid Water Heater


Rinnai CHS199100N Demand Duo 119 GAL Commercial Hybrid Water Heater

You spend your business day multi-tasking – why shouldn’t your commercial hot water system do the same? Introducing the Demand Duo™ Commercial Hybrid System – the perfect solution for direct replacement of most traditional and high efficiency tanks. And, only Rinnai backs it’s nearly 100-year reputation of quality and reliability with a 6-year HEX/Tank warranty. The all new Rinnai Demand Duo is a master multi-tasker you’re sure to admire.


  • Fueled by Natural Gas
  • Warranty: 6-year heat exchanger / tank, 5-year parts and up to 2 years labor*
  • Built standard with C199 Commercial Tankless Water Heater
  • Commercial ENERGY STAR® certified with 96% Thermal Efficiency
  • Ultra Low NOx compliant
  • 199,000 BTU
  • Approved for high altitude up to 10,200 ft (3,109 m)
  • Integrated temperature controller that provides 98°F to 185°F, (no external controller required)
  • Assembled with individually certified components
  • First Hour Rating: 315 gal / Recovery: 231 gal (@ 100°F ?T)
  • Multiple venting options (concentric, two pipe, room air, common vent)
  • Perfect for emergency replacement situations – connection locations similar to most popular high efficiency tanks
  • Easy and cost effective maintenance – all parts replaceable


  • BTU/hr Min: 15200
  • Electrical Supply: 120 Volts AC - 60 Hz Appliance, 12 volts DC Controller
  • Hertz: 60 Hz
  • Water Pressure / Max PSI: 150
  • Volts: 120
  • Fuel Type: Gas
  • Gas Connection Type: 3/4" MNPT
  • Water Connection Type: 2" MNPT
  • BTU/hr Max: 199000
  • Energy Star: Yes


To find a retailer, please visit: https://www.rinnai.us/find-dealer

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