Gas Furnaces

Today's new high efficiency furnaces can save up to 50% in operating costs over a ten-year-old furnace. Many 1990 and earlier model furnaces have Annual Fuel Utilization Efficiency (AFUE) ratings of 65% or less. The minimum AFUE rated furnace that can be sold in the United States today is 80%.

Our current product offering starts at 80% AFUE and goes all the way to a very efficient 96.6% AFUE rating. Depending on your average usage, higher AFUE rated furnaces can significantly reduce your gas bill.

We offer many furnaces with variable and multi-speed features that can provide enhanced indoor comfort by slowly ramping up to your thermostat setting rather than simply turning on at full speed. This alleviates the "cold air blow" often associated with single speed furnaces, and dramatically reduces system noise.

Gas Furnace Product Offering

Feature Comparison
Gas Furnace Product Offering
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Gas Furnace Product Offering
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Gas Furnace Product Offering
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Gas Furnace Product Offering
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Product NameInfinity® 96 Gas Furnace Performance™ 96 Gas Furnace Performance™ Boost 90 Gas FurnaceComfort™ 80 GasFurnace
Model Family59TN659TP659SP558STA
Annual Fuel Utilization EfficiencyUp to 96.7% AFUEUp to 96.5% AFUE Up to 96.5% AFUE80.0% AFUE
Energy Star RatedENERGY STAR®ENERGY STAR®Energy Star RatedNo
Blower MotorVariable-speed, ECM blower motorVariable-speed, ECM blower motorMulti-speed, ECM blower motorFixed-speed, PSC blower motor
Gas ValveTwo-stagesTwo-stage gas valveSingle-stageSingle-stage
Fan Heating OperationTwo-stagesTwo-speed inducer motorsingle speedFixed-speed
Factory Warranty Parts10yr limited warranty10-year parts limited warranty10 yr limited warranty10-year parts limited warranty
Heat Exchanger WarrantyLifetime limited warrantyLifetime heat exchanger limited warrantyLifetime limited warranty20-year heat exchanger limited warranty
Sound Level QuieTech™QuieTech™QuieTech™QuieTech™
Manufacturer's Stated Benefits
  • Ideal Humidity System® technology capable to aid heat pump or air conditioner summer dehumidification 
  • SmartEvap™ technology works in concert with your cooling system to aid summer dehumidification
  • ComfortFan™ technology allows fan-speed choices in
  • Comfort Heat Technology® feature intelligently stages heating cycles to reduce temperature swings and improve efficiency
  • Infinity intelligence enables self-configuration and easy troubleshooting with Infinity control
  • Fully insulated cabinet
  • Advanced temperature control
  • Includes air filter cabinet
  • Allows 4 choices of
  • Hybrid Heat® compatible
  • Aluminized steel clamshell-style primary heat exchanger
  • Stainless steel fin-and-tube design secondary heat exchanger
  • Ideal Humidity System® technology capable to aid heat pump or air conditioner summer dehumidification
  • SmartEvap™ technology works in concert with your cooling system to aid summer dehumidification
  • ComfortFan™ technology allows fan-speed choices in Constant ON mode.
  • Comfort Heat Technology ® feature intelligently stages heating cycles to reduce temperature swings and improve efficiency
  • Fully insulated cabinet
  • Advanced temperature control
  • Includes air filter cabinet
  • Low stage operation up to 90% of time for quiet, energy-efficient operation
  • Hybrid Heat® compatible with this model.
  • Year-round humidity management when installed as part of complete Performance system with humidifier.
  • Can help boost cooling SEER efficiency when matched with appropriate cooling system components.
  • Pilot-free, hot surface PowerHeatTM ignition
  • Recommended controls: Performance™ Edge® relative humidity or ComfortZoneTM II thermostats.
  • All units meet California Air Quality Management District emission requirements, are design certified in Canada, and are certifi
  • Humidistat™ Control compatible; dehumidification input for better comfort
  • SmartEvap™ technology can lower the humidity level in the home by nearly 10 percent when paired with a compatible condensing u
  • ComfortFan™ technology allows control of continuous fan speed from a compatible thermostat
  • The easiest to install generation of Carrier condensing furnaces ever
  • Ideal condensing furnace height 35-inch cabinet: short enough for taller coils, but still allows enough room for installation an
  • Silicon Nitride Power Heat™ Hot Surface Igniter
  • External Media Filter Cabinet included
  • 4-way multipoise design for upflow, downflow or horizontal installation, with unique vent elbow and optional through-the-cabinet
  • Self-diagnostics
  • Adjustable blower speed for cooling, continuous fan, and dehumidification
  • Aluminized-steel primary heat exchanger
  • Stainless-steel condensing secondary heat exchanger
  • Propane convertible
  • Factory-configured ready for upflow applications
  • Fully-insulated casing including blower section
  • Convenient Electronic Air Cleaner and Humidifier connections
  • Direct-vent/sealed combustion, single-pipe venting or ventilated combustion air
  • Installation flexibility: (sidewall or vertical vent)
  • Residential installations may be eligible for consumer financing through the Retail Credit Program
  • All units meet California Air Quality Management District emission requirements, are design certified in Canada, and are certifi
  • Hybrid Heat® compatible with this model.
  • Pilot-free, hot surface PowerHeat™ ignition
  • Aluminized steel clamshell-style primary heat exchanger
  • Sound reduction: fully insulated cabinet and QuieTech™ noise reduction
  • Recommended controls: Performance™ Edge® relative humidity or ComfortZoneTM II thermostats