64 Tankless Series - Rheem Water Heaters

RTG-64DV / RTG-64X tankless models

Learn more:Technical Specifications


Tankless 64 IndoorTankless 64 Indoor 2 or more Bath Homes Tankless 64 OutdoorTankless 64 Outdoor 2 or more Bath Homes


Limited Warranty:

12-Year on heat exchanger, 5-Year on parts, 1-Year on labor

See Residential Warranty Information Brochure for complete warranty information.

  • New! 3"/5" Concentric Vent System with Integrated Condensate Collector (indoor models only)
  • Connects to Metal Fab Inc., 3"/5" Concentric Venting without an adapter
  • New! Next Generation Burner Technology
  • Industry Best! .26 GPM Minimum Flow Rate, .40 GPM Minimum Activation Flow Rate
  • UMC-117 remote control and 10 ft. of thermostat wire is included
  • EZ-Link™ cable available for high demand applications to connect two tankless units to operate as one
  • New! Manifold up to 6 units with an optional MIC-6 manifold control board
  • Exclusive! All Rheem models can be linked in up to 20 unit manifold installations by using the optional MIC-180 and MICS-180 manifold control assembly
  • High-altitude capability – up to 9,840 ft. elevation above sea level (no chip required)
  • Exclusive! Guardian OFWTM overheat film wrap
  • All Rheem tankless models are third-party efficiency certified by GAMA
  • Continuous hot water, energy saving and compact, space saving design
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Self Diagnostic System
  • Digital display shows temperature setting and maintenance codes
  • Built-in electric blower
  • Supplied with a 120 volt power cord
  • Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
  • Freeze protection to -30° F
  • Product appearance may differ.

* Based on simultaneous showers using 2.5 gallons per minute. Flow rates vary depending on temperature of cold water supply.

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