Best : Infinity Series (80% AFUE)

Infinity® 80 Gas Furnace

Southern climates with short, mild winters may not call for the highest degree of efficiency. As part of an Infinity communicating system, you can pair this model with a high–efficiency heat pump or air conditioner and gain a cooling efficiency boost from its variable–speed blower. You also get to enjoy better temperature control and longer, quieter, low–speed operation.

Key Features

• Up to 80.0% AFUE heating efficiency
• Two–stages of heat for economical operation
• Variable–speed, ECM blower motor for ultimate comfort and ultra–quiet operation and best in class electrical efficiency
• Ideal Humidity System® technology capable to aid heat pump or air conditioner summer dehumification
• SmartEvap™ technology works in concert with your cooling system to aid summer dehumidification
• ComfortFan™ technology allows fan–speed choices in "Constant ON" mode
• Infinity intelligence enables self–configuration and easy troubleshooting with Infinity control
• Fully insulated cabinet
• Advanced temperature control
• 10–year parts limited warranty1
• 20–year heat exchanger limited warranty2

Performance

• Low stage operation up to 90% of time for quiet, energy–efficient operation
• Allows 4 choices of "constant ON" fan speed operation
• Hybrid Heat® compatible
• Exceptional year–round humidity management when installed as part of complete Infinity system with added humidifier
• Can help boost cooling SEER efficiency when matched with appropriate cooling system components

Details

• Ideal Humidity System™ technology capable
• ComfortFan™ technology for better airflow control
• Variable–speed blower motor

Technology

• Two–stage gas valve
• Variable–speed, ECM blower motor
• Pilot–free, hot surface PowerHeat™ ignition
• Two–speed inducer motor
• Aluminized steel clamshell–style primary heat exchanger
• Sound reduction: fully insulated cabinet and QuieTech™ noise reduction
• Infinity level advanced diagnostic intelligence
• Recommended control: Infinity control

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