Select a thumbnail to view a larger version
Enjoy an endless supply of hot water with the RUCS75iN, our Super-High Efficiency condensing natural gas tankless water heater from Rinnail. Only the size of a small suitcase, the RUCS75iN is compact, easy-to-install and perfect for indoor locations.
- Uniform Energy Factor (UEF): 0.9
- Warranty
- 10,300 BTU (minimum)
160,000 BTU (maximum) - Indoor
-
Up to twice the lifespan of most tanks
-
Never run out of hot water
-
Compact size to fit every space
Specifications
| 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 | Natural Gas |
| Installation Type | Indoor |
| Residential ENERGY STAR® | Yes |
| Uniform Energy Factor (UEF) | 0.9 |
| Domestic Hot Water Flow Rate (Maximum) | 7.5 GPM / (28.4 l/min) |
| SCAQMD Approved | Ultra Low NOx |
Documentation
Select Document Language
English (US)
French (Canadian)
Spanish
-
AHRICertificate-RUCS75iPDF 222 KB
Manufacturer's_Certification_Statement_-_Rinnai_2015-2016.pdfPDF 327 KB -
Single Unit Standoff Bracket Installation Instructions EnglishPDF 919 KB
-
Energy Guide - RUCS75iNPDF 893 KB
-
Installation Manual: KCM Series Tankless Water Heater - RUS/RUCSPDF 7 MB
-
Water_Heating_Solutions_Consumer_Brochure.pdfPDF 26 MB
Water_Heating_Solutions_Trade_Brochure.pdfPDF 33 MB
Ground water temperature map updatePDF 316 KB
Condensing Group Water Temperature Guide US and CanadaPDF 1 MB
-
Supplemental Spec Sheet: Pipe Cover for Condensing Tankless Water Heaters- White (PN# PCD07-EW)PDF 374 KB
Condensing Tankless Water HeaterPDF 597 KB
UBBINK Vent Spec Sheet - RU/CU/RURPDF 667 KB
-
Tech Bulletin No 115: Condensing Water Heater Combustion Air Intake Pipe Material (TB-115)PDF 230 KB
Tech Bulletin No 117: IPEX Concentric Vent Termination (TB-117)PDF 311 KB
Tech Bulletin No 121: Activation Flow Rates at Higher Temperatures (TB-121)PDF 308 KB
Tech Bulletin No 122: New Condensing Tankless Venting Options (TB-122)PDF 263 KB
Tech Bulletin No 130: Battery Backup for Tankless Water Heaters and Home Heating Products (TB-130)PDF 285 KB
-
TWH Troubleshooting Technical Data SheetPDF 2 MB
Troubleshooting TWH Diagnostic Codes-FrenchPDF 2 MB
Troubleshooting TWH Diagnostic Codes-SpanishPDF 2 MB
U328-0710(00)-RUCS75i RUCS65i RUS75e RUS65e KCM Tech Sheet.pdfPDF 779 KB
-
System Design Drawing: Rinnai Tankless Single Unit with Backup Storage (CAD format)DWG 320 KB
System Design Drawing: Rinnai Tankless Single Unit with Backup StoragePDF 803 KB
System Design Drawing: Rinnai Tankless Single Unit with Demand Pump Circulation (CAD format)DWG 337 KB
System Design Drawing: Rinnai Tankless Single Unit with Demand Pump CirculationPDF 789 KB
System Design Drawing: Rinnai Tankless Single Unit with Circulation (CAD format)DWG 403 KB -
Warranty KCM (SE Series)PDF 339 KB
iWarranty information is available in the Installation & Owner Manual.
