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% for the Southeast and Southwest, with 90% being the minimum in the North.
Our current product offering starts at 80% AFUE and goes all the way to a very efficient 98%+ AFUE rating. Depending on your average usage, higher AFUE rated furnaces can significantly reduce your gas bill.
The DOE’s regional breakdown by state is as follows:
- North – 80% AFUE
- Southeast – 90% AFUE
- Southwest - 90% AFUE
Let Koppeis Heating & Cooling Help Pick The Right Furnace For Your Home
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. Call us now at (573) 756-1224.
90% Gas Furnace Product Offering
EVOLUTION™ 98 VARIABLE-SPEED MODULATING GAS FURNACEView Brochure |
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Model Family: 987M |
Annual Fuel Utilization Efficiency: Up to 98.3% AFUE |
Energy Star Rated: ENERGY STAR® |
Blower Motor: Variable-speed full-featured ECM |
Gas Valve: Modulating |
Inducer Draft Motor: |
Fan Heating Operation: Four speeds of continuous fan operation with a compatible control |
Factory Warranty Parts: 10-year parts limited warranty upon registration |
Heat Exchanger Warranty: Lifetime limited warranty; Red ShieldTM 10-year unit replacement warranty (heat exchanger failure only) upon timely registration. |
Sound Level: Quiet operation |
Manufacturer's Stated Benefits:
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EVOLUTION™ 96 VARIABLE-SPEED GAS FURNACEView Brochure |
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Model Family: 986T |
Annual Fuel Utilization Efficiency: Up to 96.7% AFUE |
Energy Star Rated: ENERGY STAR® |
Blower Motor: Variable-speed ECM and two speed inducer motor |
Gas Valve: Two-stage |
Inducer Draft Motor: |
Fan Heating Operation: Four speeds of continuous fan operation with a compatible control |
Factory Warranty Parts: 10-year parts limited warranty upon registration |
Heat Exchanger Warranty: Lifetime limited warranty on heat exchanger |
Sound Level: Quiet operation |
Manufacturer's Stated Benefits:
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PREFERRED™ 96 TWO STAGE GAS FURNACE WITH INTELISENSE™ TECHNOLOGYView Brochure |
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Model Family: 926T |
Annual Fuel Utilization Efficiency: Up to 96.7%AFUE |
Energy Star Rated: ENERGY STAR® |
Blower Motor: Variable speed, constant torque high-efficiency ECM |
Gas Valve: Two-stage |
Inducer Draft Motor: |
Fan Heating Operation: Continuous fan operation with a compatible control |
Factory Warranty Parts: 10-year parts limited warranty upon registration |
Heat Exchanger Warranty: Lifetime limited warranty |
Sound Level: Quiet operation |
Manufacturer's Stated Benefits:
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Legacy™ 92 GAS FURNACEView Brochure |
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Model Family: 912S |
Annual Fuel Utilization Efficiency: Up to 92.1% AFUE |
Energy Star Rated: N/A |
Blower Motor: Fixed-speed constant torque ECM motor |
Gas Valve: Single-stage |
Inducer Draft Motor: |
Fan Heating Operation: Fixed Speed |
Factory Warranty Parts: 10-year parts limited warranty when properly registered. |
Heat Exchanger Warranty: 20-year limited warranty on heat exchanger when properly registered. |
Sound Level: Quiet operation |
Manufacturer's Stated Benefits:
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80% Gas Furnace Product Offering
Evolution® Series Variable-Speed 80% Gas FurnaceView Brochure |
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Model Family: 315A |
Annual Fuel Utilization Efficiency: 80% AFUE |
Energy Star Rated: N/A |
Blower Motor: Variable speed ECM |
Gas Valve: Two-stage |
Inducer Draft Motor: |
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:
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Preferred™Series Variable-Speed 80% Gas FurnaceView Brochure |
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Model Family: 314A |
Annual Fuel Utilization Efficiency: 80% AFUE |
Energy Star Rated: N/A |
Blower Motor: Perfect™ ECM (PWM) Variable speed |
Gas Valve: Two-stage |
Inducer Draft Motor: |
Fan Heating Operation: Two-stage |
Factory Warranty Parts: 10yr parts limited warranty |
Heat Exchanger Warranty: 20yr heat exchanger limited warranty |
Sound Level: QuieTech™ |
Manufacturer's Stated Benefits:
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Legacy™Line Fixed-Speed 80% Gas FurnaceView Brochure |
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Model Family: 310A |
Annual Fuel Utilization Efficiency: 80% AFUE |
Energy Star Rated: N/A |
Blower Motor: Fixed speed |
Gas Valve: Single-stage |
Inducer Draft Motor: |
Fan Heating Operation: Single-stage |
Factory Warranty Parts: 10yr parts limited warranty |
Heat Exchanger Warranty: 20yr heat exchanger limited warranty |
Sound Level: QuieTech™ |
Manufacturer's Stated Benefits:
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