Endless Hot Water. Bath, after bath.

These innovative, new tankless gas water heaters provide a continuous supply of hot water from an energy-efficient and space-saving design about the size of a medicine cabinet.

  • UMC-117 remote control is included and can be set up to 140 degrees
  • EZ-Link cable available for high demand applications to connect two tankless units to operate as one
  • Exclusive! Guardian SBT sensing burner technology
  • Exclusive! Guardian OFW overheat film wrap
  • 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
  • Category III stainless steel vents and vent horizontally or vertically
  • Supplied with a 120 volt power cord
  • Natural Gas or Propane
  • Environmentally friendly Low NOx burner
  • Direct electronic ignition - no pilot light
  • On-Board diagnostics and safety monitoring
  • Interior sealed combustion units - do not use interior combustion air
  • Indoor and outdoor models feature freeze protection to -20F
Rheem logo Energy Star

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Model IDModel NameInput Range
Flow Rate
2286RTG2-42PVN21.5 - 118.0.831 Pipe3100 - 1405.520.5x13.75x6.2535
2287RTG-53PVN21.5 - 145.0.821 Pipe3100 - 1406.820.5x13.75x6.2536
2289RTG-53DVN20.0 - 141.0.82Concentric3 by 5100 - 1406.823x13.75x7.2539
2291RTG-66DVN11.0 - 180.0.82Concentric3 by 5100 - 1408.425.6x13.9x9.954
2292RTG-74PVN-119.0 - 199.9.821 Pipe4100 - 1408.525.3x14.9x11.155
2294RTG-74DVN-119.0 - 199.9.822 Pipe4100 - 1408.525.3x14.9x11.155
  • RTG2-42 Models
    • Heat Exchanger - 10 Years
    • Parts: 3 Years
  • All Other Residential Models
    • Heat Exchanger - 12 Years
    • Parts: 5 Years
    • Reasonable Labor: 1 Year