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Good : Comfort Series (80% AFUE)


Comfort™ 80 Gas Furnace

If you live in a Southern area where short, mild winters are balanced with long humid summers this may be a furnace you’ll appreciate.

ComfortFan technology allows you to choose fan speeds in "Constant ON" mode from a compatible thermostat even though the this is a fixed–speed unit.

It also features SmartEvap technology which periodically stops the fan in "Constant ON" modes to give cooling condensation time to drain away. SmartEvap can reduce summer humidity by up to 10%.

Key Features

  • Up to 80.0% AFUE heating efficiency
  • Single–stage operation
  • Fixed–speed blower motor
  • SmartEvap technology works in concert with your cooling system to aid summer dehumidification
  • ComfortFan technology allows fan–speed choices in "Constant ON" mode1
  • Fully insulated cabinet
  • 10–year parts limited warranty2
  • 20–year heat exchanger limited warranty3


  • Allows choices of "constant ON" fan speed operation1
  • Hybrid Heat® compatible


  • ComfortFan technology for better airflow control1
  • Fixed–speed blower motor


  • Single–stage gas valve
  • Fixed–speed, PSC blower motor
  • Pilot–free, hot surface PowerHeat ignition
  • Fixed–speed inducer motor
  • Aluminized steel clamshell–style primary heat exchanger
  • Sound reduction: fully insulated cabinet and QuieTech noise reduction
  • Recommended controls: Performance Edge® relative humidity or ComfortZone II thermostats

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