Products - Furnaces

SLP98V Gas Furnace

Variable-capacity operation 
Works much like the cruise control system of high-performance automobiles, automatically making adjustments as necessary to allow maximum fuel efficiency.

Variable-capacity operation 
Works much like the cruise control system of high-performance automobiles, automatically making adjustments as necessary to allow maximum fuel efficiency.

Variable-speed motor
Provides a quiet and consistent flow of air for an ideal balance of temperature and humidity in your home.

SilentComfort™ technology 
Delivers the ultimate in quiet, consistent heating—up to 7 times quieter than competitive models.

Precise Comfort™ technology 
Adjusts fan speed, heat and airflow capacity in increments as small as 1% for the ultimate in temperature control.

SLP280V Gas Furnace

Duralok® heat exchanger
Made of patented ArmourTuf™ steel. Life-tested in excess of agency requirements for long product life and durability.

SureLight® igniter
Silicone nitride construction ensures long product life and reliable operation..

SureLight control board
Controls furnace operation to ensure hr than a standard air conditioner. .

Durable steel cabinet
Sleekly styled and made to last with a contoured design and high-quality paint finish.

G61V Gas Furnace

Duralok Plus™ heat exchanger
Made of patented ArmorTuf™ steel to ensure hr than a standard air conditioner. .

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 available.

Two-stage, variable-speed motor
Provides a quiet and consistent flow of air for an ideal balance of temperature and humidity in your home.

Ultra-low continuous fan speed
Provides a quiet, constant flow of air and optimizes indoor air quality accessories.

G61 Two-Stage, High-Efficiency Gas Furnace

Duralok Plus™ heat exchanger
Made of patented ArmorTuf™ steel to ensure hr than a standard air conditioner.

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 available.

Two-stage operation 
Runs at low speed 80% of the time, minimizing the up-and-down temperature changes associated with standard furnaces.

Ultra-low continuous fan speed
Provides a quiet, constant flow of air and optimizes indoor air quality accessories.

Duralok Plus™ heat exchanger
Made of patented ArmorTuf™ steel to ensure hr than a standard air conditioner.

SureLight® igniter
Silicone nitride construction ensures long product life and reliable operation.

SureLight control board
Direct-readout diagnostics allow simple, quick troubleshooting.

Sealed blower compartment
Minimizes losses and maximizes efficiency and comfort. Less than 1% leakage at 1.0" ESP

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.

G60 Two-Stage, High-Efficiency Gas Furnace

Duralok Plus™ heat exchanger
Made of patented ArmorTuf™ steel to ensure hr than a standard air conditioner.

SureLight® igniter
Silicone nitride construction ensures long product life and reliable operation.

SureLight control board
Direct-readout diagnostics allow simple, quick troubleshooting.

Two-stage operation
Runs at low speed 80% of the time, which minimizes the up-and-down temperature changes associated with standard furnaces.

Fully insulated cabinet
Ensures quiet, efficient operation.

Low continuous fan speed 
Provides a quiet, constant flow of air.

G50 Gas Furnace

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.

Fully insulated cabinet
Ensures quiet, efficient operation.

Low continuous fan speed
Provides a quiet, constant flow of air.

ML193 Gas Furnace

Duralok Plus® heat exchanger
Made of patented ArmorTuf™ aluminized steel to ensure high reliability and efficiency.

SureLight® ignitor
Silicon nitride construction for long product life and reliable operation.

Durable steel cabinet
Made to last, with a resilient and attractive textured-paint finish.

SureLight integrated control board
Ensures full control of furnace operation.

Stainless steel secondary heat exchanger allows the furnace to reach high efficiency levels by capturing additional heat.

ML180E Gas Furnace

Duralok Plus™ heat exchanger
Made of high-quality, patented ArmourTuf aluminized steel

Hot surface igniter
Controls furnace operation to ensure reliable, efficient performance.

Efficiency rating of 80% AFUE
Can save you hundreds of dollars each year compared to older furnaces.

Power Saver motor
Operates at constant torque to help maintain consistent air flow.

Improved cooling efficiency
When matched with a Lennox air conditioner or heat pump, the ML180E will improve the system's SEER (Seasonal Energy Efficiency Ratio).

Sealed blower compartment
Minimizes losses and maximizes efficency and comfort.

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

Duralok Plus™ heat exchanger
Made of high-quality, patented ArmourTuf aluminized steel

Hot surface igniter
Controls furnace operation to ensure reliable, efficient performance.

Efficiency rating of 80% AFUE
Can save you hundreds of dollars each year compared to older furnaces.

Sealed blower compartment
Minimizes losses and maximizes efficency and comfort.

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.

Variable-speed motor 
Provides a quiet and consistent flow of air for an ideal balance of temperature and humidity in your home.

SilentComfort™ technology
Delivers the ultimate in quiet, consistent heating.

Beckett burner 
Delivers super-efficient combustion for greater fuel economy.

Heavy-duty fuel pump
Provides quiet, reliable operation with fast shutoff of oil flow.

Innovative combustion chamber
Constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency.

Variable-speed motor 
Provides a quiet and consistent flow of air for an ideal balance of temperature and humidity in your home.

SilentComfort™ technology
Delivers the ultimate in quiet, consistent heating.

Beckett burner 
Delivers super-efficient combustion for greater fuel economy.

Heavy-duty fuel pump
Provides quiet, reliable operation with fast shutoff of oil flow.

Innovative combustion chamber
Constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency.

O23 Oil Furnace

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.

Efficiency ratings of up to 83%

Heavy-gauge steel heat exchanger
Air to glide evenly over its smooth surface for maximum heating efficiency.