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Rheem RGFG-12ERCMS - Prestige Series 90 Plus AFUE Modulating, Upflow 120K BTU Gas Furnace With Comfort Control


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Comparable Products


RGFG Series
The Rheem Prestige Series™ 90 Plus High Efficiency line of upflow gas furnaces are designed for utility rooms, closets, or alcoves. Because of the low-profile 34 inch height, the RGFG- model can be used vertically to satisfy most applications that traditionally call for a horizontal furnace. The design is certified by CSA.

  • The Comfort Control 2 System™ provides 28 on-board diagnostic codes and fault history codes by detecting system and electrical problems. "Call for Service" alert notification is sent to the thermostat to alert the homeowner
    of required service
  • Serial Communication Enhanced - When installed with a Serial Communicating Condensing Unit and user interface control (RHC-TST550CMMS) 500 Series thermostat this unit offers 4 or 2 wire installation, auto-configuration, and diagnostic messaging with full communicating capability
  • Patented Heat Exchange, primary heat exchanger constructed of aluminized steel and secondary heat exchanger constructed of stainless steel for maximum corrosion resistance and thermal fatigue reliability.
  • Modulating Function: when used with a modulating or communicating thermostat, modulation rate between 40% and 100% of total capacity
  • Two-stage Function: when used with a two-stage thermostat, furnace operates at 40% on first stage, and stages up to 65%, then 100% for second stage
  • Multistage Function: when used with a single-stage thermostat, furnace functions as a three stage furnace operating at 40%, 65% and 100% of total capacity
  • Reduced firing rates, electrically efficient ECM 3.0 motor, and solid doors provide the ultimate in quiet operation
  • Low speed constant fan
  • Constant temperature rise for superior comfort
  • Seven segment LED for system diagnostics
  • Diagnostic history for troubleshooting
  • Two-speed induced draft motor
  • Direct spark ignition with remote sense
  • Optional indoor or outdoor combustion air


NameRheem RGFG-12ERCMS - Prestige Series 90 Plus AFUE Modulating, Upflow 120K BTU Gas Furnace With Comfort Control
Gemaire Item NumberRGFG12ERCMS
Manufacturer Product NumberRGFG-12ERCMS
SKU - PIM Number1369225409278
ERP Number306338
Unit of MeasureEA
Weight170.0 Pounds (Lb)
Length31.3 Inches (In)
Width26.9 Inches (In)
Height35.0 Inches (In)
Country of OriginMEX
Equipment TypeFurnace
Heating Capacity115000
Air FlowUpflow
BTU Input120000
BTU Output117000
Voltage115 VAC
Full Load Amps12
Rated Current Amps0
Minimum Circuit Amps0
Maximum Fuse Size0
Blower Motor HP1 HP
Blower Motor RPM0
Filter Size22 3/4" x 25"
Filter Size15 3/4" x 25"
Rated Load Amps0
Ignition TypeElectronic
Motor TypeECM
CertificationsUS-CSA, Canada CSA, AHRI, ISO 9001:2008
Fuel TypeNatural Gas
Gas Connection1/2" [12.7 mm] N.P.T.
Thermal EfficiencyNot Provided Before Item Discontinued
Warranty OfferedYes
Energy Star RatedYes
UL ListedNo
Product FamilyRGFG
GEM - Case Quantity


Parts List