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Commercial condensing tankless water heater CU199eN 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. CU199eN is designed for exterior 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.

  • Professional installation required; call 84-GO-Rinnai for assistance.
  • 97% Thermal Efficiency, Commercial ENERGY STAR® certified
  • Ultra Low NOx compliant
  • 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
  • Commercial warranty: Limited 6-year on the heat exchanger, 5-year on parts, up to 2 years on labor
  • Isolation valves included
  • Increase savings with Commercial ENERGY STAR® certified tankless water heaters that operate more efficiently on-demand to provide an endless supply of hot water
  • Wi-Fi Ready
  • Technical Specs

    SKU: 81924
    Model: CU199eN
    color: Charcoal sell pack width in inches: 14.6
    product type: Tankless Water Heaters gas connection: 3/4" MNPT
    flow rate: 0.26 to 11 hot water outlet: 3/4" MNPT
    flow range: 0.26 - 9.8 GPM prop65 warning: This product can expose you to chemicals including lead, lead compounds and carbon disulfide which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit
    commercial warranty: 8 yr (12,000 hr) / 5 yr / 1 yr cec certified: Yes
    country of origin: JP sub brand: Sensei
    btu rating: 15,000 sell pack weight in lbs: 73 lb
    height: 31.3 sell pack height in inches: 33.1
    fuel type: Natural Gas weight: 64 lb
    collection: Commercial Tankless Water Heaters certifications: AHRI, CSA, CEC, Energy Star, Mobile Home Certified
    product upc code: 766156009754 faucet installation: N/A
    voltage rating: 120 AC depth: 11.45
    wi-fi capable: Yes mounting: Outdoor Only
    temperature range: 98-185 width: 18.5
    sell pack length in inches: 21.7

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