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Enjoy an endless supply of hot water with the RUCS75iP, our Super-High Efficiency condensing propane fueled tankless water heater from Rinnai. Only the size of a small suitcase, the RUCS75iP is compact, easy-to-install and perfect for indoor locations.

  • Professional installation required; call 84-GO-Rinnai for assistance.
  • ENERGY STAR® Qualified with an Energy Factor of 0.93 / Uniform Energy Factor of 0.90
  • Save time with hot water whenever and wherever you need it, any size home, even for simultaneous uses at multiple fixtures
  • Save energy and reduce utility costs by operating only when hot water is needed
  • Maximum output, minimum space. Suitable for installation in non-traditional spaces such as crawl spaces and attics
  • Multiple venting options available including PVC/CPVC using the Ubbink Concentric to Twin Pipe adaptor allow for an easy installation
  • Automatic frost protection
  • Residential warranty: Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor). Commercial Warranty: Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)
  • Technical Specs

    SKU: 81724
    Model: RUCS75IP
    color: White sell pack width in inches: 14.3
    product type: Tankless Water Heaters gas connection: 3/4" MNPT
    flow rate: 0.26 to 7.5 hot water outlet: 3/4"" MNPT
    flow range: 0.26 - 7.5 GPM prop65 warning: California Proposition 65 Warning, This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
    commercial warranty: N/A cec certified: Yes
    country of origin: JP btu rating: 10,300
    sell pack weight in lbs: 62.36 lb height: 31.1
    energy factor: 0.93 sell pack height in inches: 34
    fuel type: Propane consumer warranty: 12 yr / 5 yr / 1 yr
    weight: 57.3 lb collection: Super High Efficiency
    certifications: AHRI, CSA, CEC, Energy Star, Mobile Home Certified product upc code: 766156008290
    faucet installation: N/A voltage rating: 120 AC
    depth: 10.1 wi-fi capable: Yes
    mounting: Indoor Only temperature range: 98-140
    width: 18.5 sell pack length in inches: 22

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