Furnaces
Designed to deliver reliable and economical warmth, Lennox® furnaces have efficiency ratings from 80% all the way up to 95% AFUE. And many are ENERGY STAR® qualified, which means they can significantly lower your utility bills, compared to conventional models. For optimal comfort and efficiency, a gas furnace can be combined with an electric heat pump in one dual-fuel system.
Gas Furnaces
G71P Variable-Capacity Gas Furnace 95.00%
The quietest furnace you can buy and one of the most efficient!
Features
Quiet Operation
- SilentComfort™ technology - Delivers the ultimate in quiet, consistent heating
- Variable Speed Blower Motor - Ramps up and down slowly so there's no sudden, noisy blast of air at start-up
- Fully Insulated Cabinet -Patented noise-reducing construction further minimizes operating sound to an industry leading low level
Home Comfort
- Precise Comfort™ technology - Automatically adjusts heat and airflow capacity in increments as small as 1% for the ultimate in temperature control
- AirFlex™ technology - Offers custom settings which can be selected to meet each home's specific year-round comfort requirements
- Zoning - Compatible Design - Works with Lennox' Harmony III™ zoning system to deliver the right amount of comfort for up to four zones
- Variable Speed Blower Motor - Provides a quiet, consistent flow of air for enhanced temperature and humidity control
- Variable-Capacity Operation -Goes beyond typical low and high two-stage operation, varying output from 40% to 100%
Energy Efficiency
- Efficiency rating of 95% AFUE - Can save you hundreds of dollars each year, compared to standard furnaces
- Energy Star® qualified – Meets or exceeds EPA guidelines for energy efficiency
- Variable Speed Inducer - Automatically adjusts to match the system requirements, maintaining balanced combustion and efficiency
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok Plus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board - Direct-readout diagnostics allow simple, quick troubleshooting
- Limited Lifetime Warranty on heat exchanger
- 10-Year Limited Warranty on covered components
G60V Variable Speed Gas Furnace 80.00%
The quietest furnace in its class
Features
Quiet Operation
- SilentComfort™ technology - Delivers the ultimate in quiet, consistent heating
- Fully Insulated Cabinet -Patented noise-reducing construction further minimizes operating sound to an industry leading low level
Home Comfort
- Two-stage, Variable Speed Operation – Runs at low speed 80% of the time, which minimizes the up-and-down temperature changes associated with standard furnaces
- Enhanced Humidity Control – Runs at different speeds to precisely control the flow of heated and cooled air throughout your home
- Low-speed fan – Provides a consistent, continuous flow of warm air
Energy Efficiency
- Efficiency rating of 80% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok® Heat Exchanger – Made of patented ArmourTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board – Direct-readout diagnostics allow simple, quick troubleshooting
- 20-Year Limited Warranty on heat exchanger
- 10-Year Limited Warranty on covered components
G61V High-Efficiency Gas Furnace up to 95.00%
High-efficiency gas furnace
Features
Quiet Operation
- Fully Insulated Cabinet - Ensures quiet, efficient operation
Home Comfort
- Two-Stage, Variable Speed Operation - Runs at low speed 80% of the time, which minimizes the up-and-down temperature changes associated with standard furnaces
- Enhanced Humidity Control - Runs at different speeds to precisely control the flow of heated and cooled air throughout your home
- Low-speed Fan - Provides a consistent, continuous flow of warm air
Energy Efficiency
- Efficiency rating of up to 95% AFUE - Can save you hundreds of dollars each year, compared to standard furnaces
- Energy Star® qualified – Meets or exceeds EPA guidelines for energy efficiency
- Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- DuralokPlus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board - Direct-readout diagnostics allow simple, quick troubleshooting
- Limited Lifetime Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
G61 Gas Furnace 94.10%
Two-stage, high-efficiency heating
Features
Quiet Operation
- Fully Insulated Cabinet - Ensures quiet, efficient operation
- Two-Stage Heating with Continuous Fan Operation – Quieter than standard single-stage furnaces
Home Comfort
- Two-stage Operation – Runs at low speed 80% of the time, which minimizes the up-and-down temperature changes associated with standard furnaces
- Low-speed Fan – Provides a consistent, continuous flow of warm air
Energy Efficiency
- Efficiency rating of 94.1% AFUE - Can save you hundreds of dollars each year, compared to standard furnaces
- Energy Star® qualified – Meets or exceeds EPA guidelines for energy efficiency
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok Plus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board - Direct-readout diagnostics allow simple, quick troubleshooting
- Multi-position models
- Lifetime Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
G51 Gas Furnace 92.10%
High-efficiency, high-comfort heating
Features
Quiet Operation
- Fully insulated – Ensures quiet, efficient operation
- Insulated Blower Compartment – Reduces sound for quieter operation
Home Comfort
- Low-speed fan — Provides a consistent, continuous flow of warm air
- Secondary Heat Exchanger – Allows the furnace to achieve high efficiency levels by capturing additional heat
Energy Efficiency
- Efficiency rating of 92.1% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- Energy Star® qualified — Meets or exceeds EPA guidelines for energy efficiency, which means energy savings
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok Plus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board - Direct-readout diagnostics allow simple, quick troubleshooting
- Lifetime Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
G60 Gas Furnace 80.00%
Efficient, consistent two-stage heating
Features
Quiet Operation
- Fully insulated – Ensures quiet, efficient operation
- Insulated Blower Compartment – Reduces sound for quieter operation
Home Comfort
- Two-stage operation – Runs at low speed 80% of the time, which minimizes the up-and-down temperature changes associated with standard furnaces
Energy Efficiency
- Efficiency rating of 80% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok Plus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board - Direct-readout diagnostics allow simple, quick troubleshooting
- 20-Year Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
G50 Gas Furnace 80.00%
Efficient, consistent home heating
Features
Quiet Operation
- Fully insulated – Ensures quiet, efficient operation
- Insulated Blower Compartment – Reduces sound for quieter operation
Home Comfort
- Low-speed Fan — Provides a consistent, continuous flow of warm air
Energy Efficiency
- Efficiency rating of 80% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok Plus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation
- SureLight® Control Board - Direct-readout diagnostics allow simple, quick troubleshooting
- 20-Year Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
G43 Gas Furnace up to 92.10%
Economical, high-efficiency gas heating
Features
Home Comfort
- Secondary Heat Exchanger – Allows the furnace to reach high efficiency levels by capturing additional heat
Energy Efficiency
- Efficiency rating of up to 92.1% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- ENERGY STAR® qualified - Meets or exceeds EPA guidelines for energy efficiency
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok Plus® Heat Exchanger - Made of patented ArmorTuf™ steel to ensure high reliability and efficiency
- Hot Surface Igniter – Controls furnace operation to ensure reliable, efficient performance
- 20-Year Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
G40 Gas Furnace 80.00%
Multi-position furnace designed to fit most any application
Features
Energy Efficiency
- Efficiency rating of 80% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- Dual-fuel Capability — Can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs.
Reliable Performance
- Duralok® Heat Exchanger – Made of high-quality, patented ArmourTuf aluminized steel
- Hot Surface Igniter – Controls furnace operation to ensure reliable, efficient performance
- 20-Year Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
Oil Furnaces
O23V Oil Furnace up to 83.00%
Variable Speed for superior comfort
Features
Quiet Operation
- Variable Speed Operation – Assures comfort, effeciency and considerable noise reduction
- SilentComfort™ Technology – Ensures quiet operation
- Innovative Combustion Chamber – Constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency
Energy Efficiency
- Efficiency ratings of up to 83% AFUE
- Heavy Gauge Steel Heat Exchanger – Allows air to glide evenly over its smooth surface for maximum heating efficiency
Reliable Performance
- Beckett Burner – Delivers super-efficient combustion for greater fuel economy
- Heavy-Duty Fuel Pump – Provides quiet, reliable operation with fast shutoff of oil flow
- Lifetime Limited Warranty on heat exchanger
- 10-Year Limited Warranty on covered components
- This product has earned the prestigious Good Housekeeping Seal
O25 Oil Furnace up to 84.00%
Clean, quiet and comfortable home heating
Features
Quiet Operation
- Insulated Blower Compartment – Minimizes operating sounds
- Innovative Combustion Chamber – Constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency
Energy Efficiency
- Efficiency ratings of up to 84% AFUE
Reliable Performance
- Riello Burner – Super-efficient combustion for greater fuel economy and sound reduction
- Blower Motor – Multi-speed, direct-drive system that is statically and dynamically balanced
- Lifetime Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
- This product has earned the prestigious Good Housekeeping Seal
O23 Oil Furnace up to 83.00%
Clean, quiet and comfortable home heating
Features
Quiet Operation
- Insulated Blower Compartment – Minimizes operating sounds
- Innovative Combustion Chamber – Constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency
Energy Efficiency
- Efficiency ratings of up to 83% AFUE
- Heavy Gauge Steel Heat Exchanger – Allows air to glide evenly over its smooth surface for maximum heating efficiency
Reliable Performance
- Beckett AFII Burner – Delivers super-efficient combustion for greater fuel economy
- Heavy-Duty Fuel Pump – Provides quiet, reliable operation with fast shutoff of oil flow
- Lifetime Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
- This product has earned the prestigious Good Housekeeping Seal
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