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 NameEvolution® System Plus 98MTM Gas FurnaceEvolution® System Variable-Speed 90+% Efficiency Gas FurnaceEvolutionTM Plus 80 Variable Speed Gas FurnaceLegacyTM Series 80% Gas Furnace
Model Family987M986T315A310A
Annual Fuel Utilization EfficiencyUp to 98.3% AFUEUp to 96.5% AFUEUp to 80% AFUE80% AFUE
Energy Star RatedEnergy Star RatedENERGY STAR®NoNo
Blower MotorVariable-speed full-featured ECM Variable-speed ECMVariable speed ECM Fixed speed
Gas ValveModulatingTwo-stageTwo-stageSingle-stage
Fan Heating OperationModulatingTwo-stageTwo-stage operationSingle-stage
Factory Warranty Parts10-year parts limited warranty upon registration10-year parts limited warranty upon registration10-year parts limited warranty when properly registered.10yr limited warranty
Heat Exchanger WarrantyLifetime limited warrantyLifetime limited warranty on heat exchanger Limited lifetime20yr limited warranty
Sound LevelQuieTech™QuieTech™QuieTech™QuieTech™
Manufacturer's Stated Benefits
  • Precise gas modulation with movements in 1% increments
  • Variable-speed blower allows unit to operate at lower speeds up to 90% of the time, ensuring consistent airflow and temperature.
  • Perfect HeatTM technology monitors changing conditions to adjust heating
  • Perfect HumidityTM technology removes up to 127% more moisture than a standard furnace
  • Fan On PlusTM technology
  • Enjoy the ultra-quiet performance and even-temperature comfort of variable speed air delivery
  • Two-stage operation allows longer, more consistent heating cycles on low stage for savings and comfort
  • Perfect Heat™ technology means consistent comfort by adjusting system operation to changing conditions
  • Insulated cabinet for quieter operation
  • External filter cabinet makes filter changes easier
  • Perfect HumidityTM technology removes up to 127% more moisture than a standard furnace
  • Fan On PlusTM technology
  • PerfectLight™ hot surface igniter (pilot-free)
  • Quiet performance and even-temperature comfort from variable-speed air delivery
  • Perfect Heat™ technology closely manages your comfort by adjusting system operation to changing conditions
  • Perfect Humidity™ technology ensures optimal summertime cooling dehumidification when system components include multi- and va
  • Fan On Plus™ technology lets you choose the speed of continuous fan operation with a compatible control
  • Insulated cabinet for quieter operation
  • Pilot-freePerfectLight™ ignition
  • Insulated cabinet for quieter operation
  • Hybrid Heat® system capable
  • Filter cabinet