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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% 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
DOE Regional SEER Breakdown Map

Let AstroTex Air Conditioning & Heating 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 (713) 451-9999.

Gas Furnace Product Offering

59MN7

Infinity® 98 Gas Furnace

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Model Family: 59MN7
Annual Fuel Utilization Efficiency: Up to 98.5% AFUE
Energy Star Rated: ENERGY STAR®
Blower Motor: Variable-speed, ECM blower motor
Gas Valve: Patented gas valve modulates in 1% increments between 40-100%
Inducer Draft Motor:
Fan Heating Operation: Variable-speed / modulates
Factory Warranty Parts: 10 year parts limited warranty
Heat Exchanger Warranty: Limited Lifetime Warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Greenspeed™ Intelligence
  • Highest degree of electrical efficiency among Carrier furnaces
  • Load matching performance delivers just the amount of heat needed for longer, quieter run times while minimizing energy use.
  • Best temperature control management among Carrier® furnaces
  • HybridHeat® compatible with this model.
  • Exceptional year-round humidity management when installed as part of complete Infinity system with added humidifier
  • In zoned systems improves airflow control for greater comfort in your home.
  • SmartEvap™ techology
  • Pilot-free, hot surface PowerHeat™ ignition
  • Stainless steel fin-and-tube design secondary heat exchanger
  • Sound reduction: fully insulated cabinet and QuieTech™ noise reduction
  • Infinity level advanced diagnostic intelligence
59TN6

Infinity® 96 Gas Furnace

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Model Family: 59TN6
Annual Fuel Utilization Efficiency: Up to 96.7% AFUE
Energy Star Rated: ENERGY STAR®
Blower Motor: Variable-speed, ECM blower motor
Gas Valve: Two-stage
Inducer Draft Motor:
Fan Heating Operation: Two-speed
Factory Warranty Parts: 10-year parts limited warranty
Heat Exchanger Warranty: Lifetime limited warranty
Sound Level: Quiet operation
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
  • Hybrid Heat® compatible
  • Aluminized steel clamshell-style primary heat exchanger
  • Stainless steel fin-and-tube design secondary heat exchanger
59SC2

Comfort™ 92 Gas Furnace

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Model Family: 59SC2
Annual Fuel Utilization Efficiency: Up to 92.1% AFUE
Energy Star Rated: ENERGY STAR® certified
Blower Motor: Multi-Speed ECM blower motor
Gas Valve: Single-stage
Inducer Draft Motor:
Fan Heating Operation: Fixed-speed
Factory Warranty Parts: 10 yr parts limited warranty
Heat Exchanger Warranty: 20-year heat exchanger limited warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Hybrid Heat® compatible
  • Pilot-free, hot surface PowerHeat™ ignition
  • Aluminized steel clamshell-style primary heat exchanger
  • Stainless steel fin-and-tube design secondary heat exchanger
  • Sound reduction: fully insulated cabinet and QuieTech™ noise reduction
  • Recommended controls: Performance™ Edge® relative humidity or ComfortZone™ II thermostats
  • ComfortFan™ technology allows fan-speed choices in
  • Fully insulated cabinet
  • All units meet California Air Quality Management District emission requirements, are design certified in Canada, and are certifi
  • Self-diagnostics with SuperBrite LED
58SB0

Comfort™ 80 Gas Furnace

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Model Family: 58SB0
Annual Fuel Utilization Efficiency: 80% AFUE
Energy Star Rated: No
Blower Motor: Multi 18-speed
Gas Valve: Single-stage
Inducer Draft Motor:
Fan Heating Operation: Fixed-speed operation
Factory Warranty Parts: 10-year parts limited warranty
Heat Exchanger Warranty: 20-year heat exchanger limited warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Fully insulated cabinet
  • Hybrid Heat® compatible

Comfortmaker Gas Furnaces

G97CMN

Ion™ 98 Variable-Speed Modulating Gas Furnace

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Model Family: G97CMN
Annual Fuel Utilization Efficiency: Up to 98% AFUE rating
Energy Star Rated: ENERGY STAR® qualified on all models
Blower Motor: Variable-speed blower motor
Gas Valve: Modulating gas valve
Inducer Draft Motor: Variable Speed
Fan Heating Operation: Variable Speed
Factory Warranty Parts: 10-Year Parts Limited Warranty upon timely registration
Heat Exchanger Warranty: Lifetime Heat Exchanger Limited Warranty upon timely registration
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • RPJ® (Rigid Press Joint) primary heat exchanger, stainless steel secondary heat exchanger
  • Reliable direct spark gas ignition
  • 10-Year No Hassle Replacement™ Limited Warranty
  • Wi-Fi® enabled remote access with the Ion™ System Control
  • Air purifier and humidifier compatible
  • Fully insulated cabinet keeps the heat moving to your ductwork
  • Reliable direct spark gas ignition
  • High temperature limit control prevents overheating
  • Solid, pre-painted steel insulated cabinet with tight fit door latch system
  • Sound-reducing features: soft mounted blower and inducer motor
G96VTN

QuietComfort® 96 Gas Furnace

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Model Family: G96VTN
Annual Fuel Utilization Efficiency: Up to 96.0% AFUE rating
Energy Star Rated: ENERGY STAR® qualified on all models
Blower Motor: Variable-speed, constant torque ECM blower motor
Gas Valve: Energy-saving two-stage gas valve
Inducer Draft Motor: Variable Speed
Fan Heating Operation: Variable Speed
Factory Warranty Parts: 10-Year Parts Limited Warranty upon timely registration
Heat Exchanger Warranty: Lifetime Heat Exchanger Limited Warranty upon timely registration
Sound Level: Quiet performance
Manufacturer's Stated Benefits:
  • Fully insulated cabinet helps keep the heat moving to your ductwork
  • Air purifier and humidifier compatible
  • High temperature limit control prevents overheating
  • 5-Year No Hassle Replacement™ Limited Warranty
  • RPJ® (Rigid Press Joint) primary heat exchanger, stainless steel secondary heat exchanger
  • Reliable direct spark gas ignition
  • Solid, pre-painted steel insulated cabinet with tight fit door latch system
  • Sound-reducing features: soft mounted blower and inducer motor
N92MSN

Performance® 92 Gas Furnace

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Model Family: N92MSN
Annual Fuel Utilization Efficiency: Up to 92.1% AFUE rating
Energy Star Rated: ENERGY STAR®
Blower Motor: Constant speed torque ECM blower motor that offers 18 speed options for your dealer to select from for personalize home comfort.
Gas Valve: Single-stage gas valve
Inducer Draft Motor: single Stage
Fan Heating Operation: Single-stage
Factory Warranty Parts: 10-Year Parts Limited Warranty upon timely registration
Heat Exchanger Warranty: 20-year heat exchanger limited warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Air purifier and humidifier compatible
  • High temperature limit control prevents overheating
  • Induced draft combustion motor
  • RPJ® (Rigid Press Joint) primary heat exchanger, stainless steel secondary heat exchanger
  • Reliable direct spark gas ignition
  • Sound-reducing features: soft mounted blower and inducer motor
G80CTL

Ion™ 80 Variable-Speed Gas Furnace

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Model Family: G80CTL
Annual Fuel Utilization Efficiency: 80% AFUE rating
Energy Star Rated: N/A
Blower Motor: Variable-speed, constant airflow (VCA) ECM blower motor
Gas Valve: Two-stage gas valve
Inducer Draft Motor: Variable Speed
Fan Heating Operation: Variable Speed
Factory Warranty Parts: 10-Year Parts Limited Warranty upon timely registration
Heat Exchanger Warranty: Lifetime Heat Exchanger Limited Warranty upon timely registration
Sound Level: Quiet performance
Manufacturer's Stated Benefits:
  • Fully insulated cabinet helps keep the heat moving to your ductwork
  • Air purifier and humidifier compatible
  • Wi-Fi® enabled remote access with the Ion™ System Control
  • 10-Year No Hassle Replacement™ Limited Warranty
  • RPJ® (Rigid Press Joint) primary heat exchanger
  • Reliable direct spark gas ignition
  • High temperature limit control helps prevent overheating
  • Solid pre-painted and steel insulated cabinet with tight fit door latch system
  • Sound-reducing features: soft mounted blower and inducer motor