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Direct Comfort 120K BTU 80% Natural Gas Furnace Two Stage Multi Speed Upflow/Horizontal

SKU: SKU4991

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Model #DC-GMH81205D*B*



Direct Comfort 120K BTU 80% Natural Gas Furnace Two Stage Multi Speed Upflow/Horizontal

Model #:



24-1/2" W x 28" D x 33-3/8" H


  • Installation position:
    GMH8: upflow, horizontal left or right
    GDH8: dedicated downflow
  • Dual-diameter tubular heat exchanger
  • Durable silicon nitride igniter
  • Electronic control board with self-diagnostics

Direct Comfort GMH8 Two-Stage Convertible, Multi-Speed Gas Furnace 80% AFUE Features


  • Heavy-duty aluminized-steel dualdiameter,tubular heat exchanger
  • Two-stage convertible gas valve automatically adjust to high or low stage
  • Durable Silicon Nitride igniter
  • Quiet single speed draft inducer
  • Self-diagnostic control board with constant memory fault code
  • Color-coded low-voltage terminals with provisions for electronic air cleaner and humidifier
  • Multi-speed blower motor
  • Low continuous fan speed options offer quiet air circulation
  • California Low NOx emissions standards models available


  • Multi-position installation: GMH8: upflow, horizontal left or right
    GDH8: dedicated downflow
  • Convenient left or right connection for gas and electrical service
  • Cabinet air leakage (QLeak) ≤ 2%
  • Heavy-gauge steel cabinet with durable baked-enamel finish
  • Fully insulated heat exchanger and blower section


  3. PARTS


  1. Limted Lifetime
  2. Limited 10 years
  3. 10 years

Direct Comfort products and systems are covered by outstanding limited warranties.  Be certain to review the standard and registered limited warranty coverage associated with the Direct Comfort product that you select for your home.  Note:  You do not need to register for the standard warranty coverage, but you will get additional warranty protection by registering the model and serial number of your product at within 60 days of installation.*  In both cases, installation must be performed by a local, independent contractor that meets the local, state and federal requirements for the installation of HVAC equipment.

Download the complete warranty for this product here.

*Registration is not required in California or Quebec to get the additional protection.

Direct Comfort is a full line of residential air conditioning, heating and ventilating HVAC products designed engineered and assembled in the United States. Direct Comfort can provide you with years and years of reliable indoor comfort.

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