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Elite® Series


Variable-Capacity Air Conditioner

High-efficiency air conditioner with true variable capacity

XC20 Air Conditioner
Price Guide
Efficiency Rating (SEER)
up to 22
Efficiency Rating (SEER 2)
up to 20.2
Energy Star®

Elite models come with a 10-Year Limited Warranty on compressors and a 5-Year Limited Warranty on covered components. A 10-Year Extended Limited Warranty is available with product registration. For more information, visit

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We have higher standards. Others think so, too.

Year after year, leading institutions choose to award Lennox for its innovative initiatives in product design which helps homeowners define what perfect air means to them. Below you’ll find a recognition this product has received.

We have higher standards. Others think so, too.
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Illustration of Variable capacity, constant efficiency

Variable capacity, constant efficiency

Variable capacity, constant efficiency

The XC20 offers variable-capacity operation, meaning it can adjust cooling output like a dimmer switch to perfectly match your comfort needs to your energy use. This also helps control humidity with exacting precision.

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Rated among the best for smart energy use

The XC20 is among the most energy-smart air conditioners on the market. That means you can feel good about your comfort and your energy use all year long. This product has been designated as one of the Most Efficient ENERGY STAR certified products in 2022. Products that are recognized as the Most Efficient of ENERGY STAR in 2022 prevent greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. Environmental Protection Agency.
Rated among the best for smart energy use
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A cool, quiet environment

Powerful performance doesn’t have to mean disruption. The XC20 is designed with advanced features that let it operate at comfortable sound levels. 

A cool, quiet environment

Ratings & Reviews

See what other customers are saying about
XC20 Air Conditioner

5 Stars 5/5
November 24, 2023

5 Stars 5/5

Purchase worthy

October 19, 2023

My wife and I recently had the Lennox XC20 Air Conditioner installed and we are super impressed. It works without any trouble, at cools down our house super fast, and its noise leave is barely anything. Would definitely recommend the model. We also went through Costco for this purchase and that process was a breeze.

Green check mark

Yes, I recommend this product.

Nate Doherty

Honolulu, HI

Age: 25 to 34

Gender: Male

Reason for Replacement: Used home purchase

Warranty Satisfaction:
5 Stars 5/5

Great Lennox air conditioner

August 27, 2023

The air conditioner is working great. It consistently keeps the house cool even when it is over 100 degrees outside. Easy to use the control system.

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  • Air Handler
    An air handler, or air handling unit, is the indoor part of an air conditioner or heat pump that moves cooled or heated air throughout the ductwork of your home. It is usually a large metal box containing important elements of an HVAC system that controls airflow and filtration. Lennox® air handlers are among the most efficient and quietest you can buy.
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  • Central Air-Conditioning
    Central air conditioning (or central A/C) is a system in which air is cooled at a central location and distributed to and from rooms by one or more fans and ductwork. Lennox® central air conditioners are among the quietest and most energy-efficient units you can buy.
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  • Coil
    There are typically two HVAC coils in a system—the condenser coil in the outside air conditioning condenser unit and the evaporator coil in the indoor unit. The coils are what increase or decrease the temperature via heat transfer.
    Learn More
  • Compressor
    An AC or heat pump compressor is the part of an outdoor air conditioner or heat pump that compresses and pumps refrigerant to meet household cooling requirements.
    Learn More
  • Condenser
    A condenser (or AC condenser) is the outdoor portion of an air conditioner or heat pump that either releases or collects heat, depending on the time of the year.
    Learn More
  • Decibel (dB)
    A decibel (dB) is a unit used to measure the relative intensity of sound. For example, sound levels in a library are normally about 40 dB, normal conversations range from about 50 to 60 dB, and an operating motorcycle or garbage truck can be as high as 100 dB.
    Learn More
  • Dry-Charged Unit
    An air conditioner or heat pump that is shipped dry and charged with refrigerant at the place of installation. Dry-charged units are appropriate for homeowners who need a replacement unit compatible with R-22 refrigerant.
    Learn More
  • Energy Star®
    ENERGY STAR® is a program of the U.S. Environmental Protection Agency (EPA) designed to help consumers and businesses save money by choosing energy-efficient products and technologies. Heating, ventilation and air-conditioning (HVAC) equipment with the ENERGY STAR® label meets or exceeds federal guidelines for energy-efficient performance.
    Learn More
  • Evaporator Coil
    The part of an air conditioner or heat pump that absorbs the heat from the air in your house. It is located inside the air handler or attached to the furnace.
    Learn More
  • Fan Coil Unit
    A fan coil unit (FCU) is a device that uses a coil and a fan to heat or cool a room without connecting to ductwork. Indoor air moves over the coil, which heats or cools the air before pushing it back out into the room. FCUs can be less expensive to install than ducted systems, and are available in ceiling, floor-mounted and freestanding configurations.
    Learn More
  • Indoor Coil
    See Evaporator Coil.
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  • Outdoor Coil
    See Condenser.
    Learn More
  • R-22 Refrigerant
    The old standard for residential air conditioners, now being phased out by the U.S. EPA. Lennox offers dry-charged units for those who still have R-22 compatible systems.
    Learn More
  • R-410A Refrigerant

    R-410A, is a chlorine-free, hydrofluorocarbon (HFC) refrigerant originally developed as a more environmentally friendly replacement for R-22. R-410A was developed and patented in 1991 by Honeywell.

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  • Refrigerant

    Refrigerant is the working fluid used in air conditioners, refrigeration, and heat pump systems. It is a chemical compound that changes temperature as it transitions between liquid and gas form – cooling as it vaporizes, and heating up as it condenses. It is this property that facilitated a system’s ability to heat and cool.

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  • Refrigerant Lines
    Two copper lines that connect the outdoor air conditioner or heat pump to the indoor evaporator coil.
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  • Scroll Compressor
    A specially designed compressor that works in a circular motion, as opposed to up-and-down piston action.
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  • SEER

    Simply put, this rating measures how much energy a heating and cooling system uses to operate. Learn how you can use SEER and SEER2 ratings to increase efficiency – and savings – in your home.

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Energy Star

Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet ENERGY STAR criteria. Ask your contractor for details or visit

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