RUCS65iP RUCS Model Series

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4.9/5 stars from 12 reviews

Enjoy an endless supply of hot water with the RUCS65iP, our Super-High Efficiency condensing propane fueled tankless water heater from Rinnai. Only the size of a small suitcase, the RUCS65iP is compact, easy-to-install and perfect for indoor locations.

  • Uniform Energy Factor (UEF): 0.85
  • 10,300 BTU (minimum)
    130,000 BTU (maximum)
  • Indoor
  • Warranty
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Enjoy an endless supply of hot water with the RUCS65iP, our Super-High Efficiency condensing propane fueled tankless water heater from Rinnai. Only the size of a small suitcase, the RUCS65iP is compact, easy-to-install and perfect for indoor locations.

Supply Connections

Connection Connection Size
Gas 3/4" MNPT / (19 mm)
Cold Inlet 3/4" MNPT / (19 mm)
Hot Outlet 3/4" MNPT / (19 mm)
Condensate Drain 1/2" NPT / (13 mm)
Product Depth 10.1 in / (257 mm)
Product Height 31.1 in / (789.6 mm)
Product Width 18.5 in / (470 mm)
Product Weight 57.3 lb / (26 kg)
Gas Type Propane Gas
Installation Type Indoor
Uniform Energy Factor (UEF) 0.85
Domestic Hot Water Flow Rate (Maximum) 6.5 GPM / (24.6 l/min)
SCAQMD Approved Ultra Low NOx

Warranty information is available in the Installation & Owner Manual.

Browse product manuals, spec sheets, and other documentation below.

0 documents

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AHRICertificate-RUCS65i
PDF 226 KB
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Manufacturer's_Certification_Statement_-_Rinnai_2015-2016
PDF 327 KB
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100000313 OPU Instructions-English and French
PDF 3 MB
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Energy Guide-RUCS65iP
PDF 890 KB
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100000384-KCM Series Installation and Operation Manual
PDF 7 MB
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100000923 Troubleshooting TWH Diagnostic Codes-French
PDF 2 MB
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100000924 Troubleshooting TWH Diagnostic Codes-Spanish
PDF 2 MB
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Tankless Water Heaters - Trade Brochure - English
PDF 33 MB
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Water_Heating_Solutions_Consumer_Brochure
PDF 26 MB
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Water_Heating_Solutions_Trade_Brochure
PDF 33 MB
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100000894 Water Heater Isolation Valves and PRV Kit
PDF 670 KB
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PCD07-EW-SP-Ultra Pipe Cover Specification Sheet
PDF 374 KB
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RUCS65i (KCM2025FFU-US) SP
PDF 578 KB
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Ubbink-PP-SP
PDF 667 KB
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TB-115 Condensing Water Heater Combustion Air Intake Pipe Material
PDF 230 KB
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TB-117 IPEX Concentric Vent Termination
PDF 311 KB
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TB-121 Activation Flow Rates at Higher Temperatures
PDF 308 KB
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TB-122 New Condensing Tankless Venting Options
PDF 263 KB
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TB-130 Battery Backup for Tankless Water Heaters and Home Heating Products
PDF 285 KB
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TB-150 Understanding EF and UEF
PDF 197 KB
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TB-165 New Clearances for Twin Pipe Venting Systems
PDF 308 KB
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TB-167 Control-R Not Compatible with RUCS-RUS KCM Water Heaters
PDF 360 KB
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TB-172 Rinnai Products With Natural Gas-Hydrogen Mixture Fuels
PDF 279 KB
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TWH Troubleshooting Technical Data Sheet
PDF 2 MB
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U328-0710(00)-RUCS75i RUCS65i RUS75e RUS65e KCM Tech Sheet
PDF 779 KB
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WH-1-BC
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WH-1-BC
CAD 320 KB
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WH-1-CD
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WH-1-CD
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WH-1-CIRC
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WH-1-CIRC
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WH-2-BC
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WH-2-BC
CAD 432 KB
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WH-2-CD
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WH-2-CD
CAD 689 KB
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WH-2-CIRC
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WH-2-CIRC
CAD 688 KB
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WH-3-BC
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WH-3-BC
PDF 833 KB
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WH-3-CD
PDF 732 KB
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WH-3-CD
CAD 0 MB
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WH-3-CIRC
CAD 902 KB
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WH-3-CIRC
PDF 733 KB
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WH1-AH
CAD 435 KB
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WH1-AH
PDF 719 KB
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WH1-HX
CAD 419 KB
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WH1-HX
PDF 718 KB
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WH1-S-1
CAD 427 KB
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WH1-S-1
PDF 727 KB
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WH1-S-2
PDF 725 KB
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WH1-S-2
CAD 447 KB
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WH1-SH
CAD 423 KB
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WH1-SH
PDF 720 KB
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WH2-S-1
CAD 766 KB
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WH2-S-1
PDF 736 KB
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WH2-S-2
CAD 748 KB
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WH2-S-2
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WH3-S-1
PDF 741 KB
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WH3-S-1
CAD 1 MB
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WH3-S-2
PDF 742 KB
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WH3-S-2
CAD 1 MB
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100000653_Warranty_KCM (SE Series)
PDF 339 KB
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Condensing Group Water Temperature Guide US and Canada
PDF 1 MB
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GROUND WATER TEMPERATURE MAP UPDATE RUCS65I_RUS65E
PDF 316 KB
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