Furnaces

Designed to deliver reliable and economical warmth, Lennox® furnaces have efficiency ratings from 80% all the way up to 95% AFUE.

• Innovative Precise Comfort™ and Airflex™ technologies
• Industry leading low sound levels
• Heating efficiencies of 95% AFUE
• Humidity control features

Product Overview: G71P Variable-Capacity Gas Furnace

Dave Lennox Signature® Collection G71P Variable-Capacity Gas Furnace

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 Cabient -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

Product Overview: G60V Variable Speed Gas Furnace

Dave Lennox Signature® Collection G60V Variable Speed Gas Furnace

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 troublehsooting
• 20-Year Limited Warranty on heat exchanger
• 10-Year Limited Warranty on covered components

Product Overview: G61V High-Efficiency Gas Furnace

Elite® Series G61V High-Efficiency Gas Furnace

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
• 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

Product Overview: G61 Gas Furnace

Elite® Series G61 Gas Furnace

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

Product Overview: G51 Gas Furnace

Elite® Series G51 Gas Furnace

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

Product Overview: G60 Gas Furnace

Elite® Series G60 Gas Furnace

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

Product Overview G50 Gas Furnace

Elite® Series G50 Gas Furnace

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

Product Overview: G43 High-Efficiency Gas Furnace

Merit® Series G43 Gas Furnace

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

Product Overview: G40 Gas Furnace

Merit® Series G40 Gas Furnace

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

Product Overview: O23V Oil Furnace

Dave Lennox Signature® Collection O23V Oil Furnace

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

Product Overview O25 Oil Furnace

Elite® Series O25 Oil Furnace

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

Product OverviewO23 Oil Furnace

Elite® Series O23 Oil Furnace

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