CU199iN CU Model Series

Commercial Tankless Water Heaters View Energy Guide

Commercial condensing tankless water heater CU199iN from Rinnai is precision engineered to provide endless hot water for the most demanding of applications such as restaurants, hospitality, education institutions, multifamily residential buildings and more. CU199iN is designed for indoor installation, natural gas fuel, is WiFi ready to monitor performance accross multiple units to ensure up time is maintained. Multiple venting options offer installation flexibility to meet your existing layout or for new build optimization.

  • 97% Thermal Efficiency
  • Warranty 8 yrs or 12K hours on Heat Exchanger/ 5 years on Parts/ 1 Year on Labor
  • 15,000 BTU (minimum)
    199,000 BTU (maximum)
  • Up to twice the lifespan of most tanks
  • Never run out of hot water
  • Compact size to fit every space


iWarranty information is available in the Installation & Owner Manual.

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