
Lennox High Efficiency Furnaces
Lennox Standard Efficiency Furnaces
PRODUCT OVERVIEW

Dave Lennox Signature® Collection
G71MPP Variable-Capacity Gas Furnace
The quietest furnace you can buy - and one of the most efficient!
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
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Elite® Series G61V High-Efficiency Gas Furnace
High-efficiency gas furnace
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
- 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
- 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
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Elite® Series G61 Gas Furnace
Two-stage, high-efficiency heating
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
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Elite® Series G51 Gas Furnace
High-efficiency, high-comfort heating
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
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Dave Lennox Signature® Collection
G60V Variable Speed Gas Furnace
The quietest furnace in its class 2
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
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Elite® Series G60 Gas Furnace
Efficient, consistent two-stage heating
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
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Elite® Series G50 Gas Furnace
Efficient, consistent home heating
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
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