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Rheem 612997 - RHE40S - RHE40S Professional Prestige 38 Gallon High Efficiency Condensing Power Direct Vent NG Water Heater

Item: RHE40S
MFR: 612997
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Professional Prestige™
High Efficiency Condensing Power Direct Vent natural gas water heaters are a perfect choice when indoor air quality is a concern.
  • 0.82 EF
  • ENERGY STAR® rated
  • FHR: Up to 93 gallons for natural gas
  • Recovery: 48.5 GPH at a 90° F rise
Self-Diagnostic System
  • Integrated system control for easy installation and service
  • Diagnostic system control can be replaced without draining the water heater
Low Emissions
  • Eco-friendly burner, low NOx design
  • Power direct vents are an ideal choice when either indoor air quality or negative air pressure are concerns
  • Two-pipe system: one pipe pulls in outside air for combustion and the other exhausts combustion gases
  • 120 VAC, 60Hz, induced draft blower
  • New whisper quiet blower
Innovative Technology
  • Proven center flue design with submerged coil type condensing heat exchanger
  • Heat exchanger is porcelain coated inside and out for increased product life
Flammable Vapor Detection System
  • FVIR compliant protective
  • Control system that disables the heater in the presence of flammable vapor accumulation
Flexible Venting Options
  • Long venting lengths up to 60 feet
  • Use 2 or 3 inch diameter PVC, ABS, or CPVC vent pipe options. (In Canada ULC S636 PVC and CPVC must be used.)
  • Vertical or horizontal termination
  • Concentric vent kit available
Longer Life
  • Dual anode rods protect the tank from corrosion
High Altitude Compliant
  • Models are certified for applications up to 9,000 feet above sea level

  • Enhanced flow brass drain valve
  • Temperature and pressure relief valve included
  • Low lead compliant
  • Durable silicon nitride igniter (HSI)
  • Inlet tube with diffuser enhances heat transfer
  • Front access to condensate trap and vent pipe
  • Condensate neutralizer option
  • Standard replacement parts
6-Year limited tank and parts warranty*
* See Residential Warranty Certificate for complete information


NameRheem 612997 - RHE40S - RHE40S Professional Prestige 38 Gallon High Efficiency Condensing Power Direct Vent NG Water Heater
Gemaire Item NumberRHE40S
Manufacturer Product Number612997
SKU - PIM Number1404816218745
ERP Number362760
Unit of MeasureEA
Weight220.0 LB
Length22.1 IN
Width22.1 IN
Height51.1 IN
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginMEX
Capacity Gallons38
Connection Size3/4"
Connection TypeNTP
Fuel TypeNatural Gas
Energy Star RatedNo
GEM - Case Quantity


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