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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

987MB

Evolution® Series 98.3% Gas Furnace

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Model Family: 987MB
Annual Fuel Utilization Efficiency: Up to 98.3% AFUE
Energy Star Rated: ENERGY STAR®
Blower Motor: Variable-speed full-featured ECM
Gas Valve: Modulating
Fan Heating Operation: Modulating
Factory Warranty Parts: 10-year parts limited warranty upon registration
Heat Exchanger Warranty: Lifetime limited warranty
Sound Level: QuieTech™
Manufacturer's Stated Benefits:
  • Variable-speed blower allows unit to operate at lower speeds up to 90% of the time, ensuring consistent airflow and temperature.
  • Perfect Heat™ technology monitors changing conditions to adjust heating
  • Perfect Humidity™technology removes up to 127% more moisture than a standard furnace
  • Fan On Plus™ technology
880TA

Evolution® Series Variable-Speed 80% Gas Furnace

Model Family: 880TA
Annual Fuel Utilization Efficiency: 80% AFUE
Energy Star Rated: N/A
Blower Motor: Variable-Speed Constant Airflow ECM (VCA)
Gas Valve: Two-stage
Fan Heating Operation: Two-stage operation
Factory Warranty Parts: 10-year parts limited warranty when properly registered.
Heat Exchanger Warranty: Limited lifetime
Sound Level: QuieTech™
Manufacturer's Stated Benefits:
  • High energy efficiency - up to 80% AFUE reduces heating costs by up to 23% annually.
  • Variable-speed blower allows unit to operate at lower speeds up to 90% of the time, ensuring consistent airflow and temperature.
  • Perfect Heat™ technology closely manages your comfort by adjusting system operation to changing conditions
  • Perfect Humidity™ technology ensures optimal summertime cooling dehumidification
  • Fan On Plus™ technology lets you choose the speed of continuous fan operation with a compatible control
820TA

Preferred™Series Variable-Speed 80% Gas Furnace

Model Family: 820TA
Annual Fuel Utilization Efficiency: 80% AFUE
Energy Star Rated: N/A
Blower Motor: Variable-Speed Constant Torque ECM (VCT)
Gas Valve: Two-stage
Fan Heating Operation: Two-stage operation
Factory Warranty Parts: 10yr parts limited warranty
Heat Exchanger Warranty: 20yr heat exchanger limited warranty
Sound Level: QuieTech™
Manufacturer's Stated Benefits:
  • Perfect Heat™ technology closely manages your comfort by adjusting system operation to changing conditions
  • Perfect Humidity™ technology ensures optimal summertime cooling dehumidification
  • Fan On Plus™Twinnable technology lets you choose the speed of continuous fan operation with a compatible control
820SA

Preferred™Series Variable-Speed 80% Gas Furnace

Model Family: 820SA
Annual Fuel Utilization Efficiency: 80% AFUE
Energy Star Rated: N/A
Blower Motor: Variable-Speed Constant Torque ECM (VCT)
Gas Valve: Single-stage
Fan Heating Operation: Single-stage operation
Factory Warranty Parts: 10-year parts limited warranty when properly registered.
Heat Exchanger Warranty: 20-Year Limited
Sound Level: QuieTech™
Manufacturer's Stated Benefits:
  • Quiet performance and even-temperature comfort from variable-speed air delivery
  • Insulated cabinet for quieter operation
  • Igniter PerfectLight ™ hot surface igniter (pilot-free)
800SA

Legacy™Line Fixed-Speed 80% Gas Furnace

Model Family: 800SA
Annual Fuel Utilization Efficiency: 80% AFUE
Energy Star Rated: N/A
Blower Motor: Fixed-Speed Constant Torque ECM (FCT)
Gas Valve: Single-stage
Fan Heating Operation: Single-stage operation
Factory Warranty Parts: 10yr parts limited warranty
Heat Exchanger Warranty: 20yr heat exchanger limited warranty
Sound Level: QuieTech™
Manufacturer's Stated Benefits:
  • Insulated cabinet for quieter operation
  • Pilot-free PerfectLight™ ignition
  • Galvanized steel