Lennox Air Conditioners
Lennox Solar ReadyThe Most Quiet
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The Best Built
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The Most Efficient A/C System You Can Buy
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Want to beat the heat and high utility bills, without sacrificing comfort? The XC21 air conditioner more than delivers, now offering an even greater level of comfort and efficiency, the XC21 reaches new heights, so your utility bills can reach new lows.

The Most Quiet & Efficient Central A/C You Can Buy*
Enhanced with innovative new features, the XC21 provides ultra-high efficiency cooling with two stages of operation. It runs at low stage 80% of the time to reduce energy costs and sound levels. Two-stage operation and exclusive silentcomfort™ technology provide optimal performance for efficient, quiet cooling.

EFFICIENT
Can save you hundreds of dollars each year on utility bills. With industry-leading efficiencies of up to 20.50 SEER, the XC21 can significantly lower your utility bills.

QUIET
Approximately 13 times quieter than a standard air conditioner. The XC21 is engineered with exclusive silentcomfort™ technology for quiet performance. A patent pending fan design, two-stage operation, and an insulated compressor compartment also keep sound at a minimum.

RESPONSIBLE
Conserves energy, while preserving the environment. The two-stage scroll compressor uses R410A refrigerant, which meets the EPA's standards for ozone and environmental safety.

CUSTOMIZEABLE
Humiditrol® Whole-Home Dehumidification System The XC21 gives you the flexibility to choose a Humiditrol whole-home dehumidification system for improved comfort and indoor air quality. The Humiditrol system uses patented technology to provide a level of humidity control never before available.

  • Patented SilentComfort™ technology for quiet cooling
  • Two-stage operation for optimal performance and efficiency
  • Outstanding efficiency can save you hundreds of dollars each year
  • Ozone-responsible R-410A refrigerant meets the EPA's (Environmental Protection Agency) most stringent environmental guidelines
  • Optimized for use with the exclusive Humiditrol® whole-home dehumidification system
  • Lennox® System Operations Monitor reviews system performance for additional peace of mind & faster, easier service
  • SmartHinge™ louvered access panels for improved coil protection and fast, efficient servicing
  • Energy Star® qualified
XC21

EFFICIENCY RATING
Up to 20.50 SEER (Seasonal Energy Efficiency Ratio).

WARRANTY
10-year limited warranty on the compressor and all remaining covered components.

SOLAR READY SOLAR PANELS

Introducing the Industry's First Solar-Assisted Central Heat Pump SunSource™ Comfort System

One-of-a-Kind Cooling that's Kinder to the Environment

Far more affordable than a full-house solar system, the Lennox SunSource™ Comfort System is the first-of-its-kind innovation that takes you away from the burden of high utility bills and moves you towards the future.

ENVIRONMENTALLY SAFE
A SunSource Comfort System makes use of all available solar energy to reduce electric consumption. The SunSource heat pump is designed with a two-stage scroll compressor that uses R410A refrigerant, which meets the US Environmental Protection Agency's standards for ozone and environmental safety. With Lennox' exclusive SilentComfort technology, the SunSource heat pump is engineered for quiet performance day in and day out. A patent-pending fan design, two-stage operation and an insulated compressor compartment also helps keep sound at a minimum.

SOLAR READY
Lennox SunSource
SOURCE OF ALTERNATIVE ENERGY
  • Patent-pending solar-assist technology uses a combination of solar energy and electricity to reduce peak demand on home electric usage
  • Operates in a wide range of sunlight and temperature conditions
  • ENERGY STAR® qualified
SOURCE OF INNOVATIVE COMFORT
  • Delivers even heating and cooling in every room
  • Highly reliable, with patented SmartHinge™ panels that require little routine maintenance
HOW IT WORKS
Draws Energy from The Sun

During peak daylight hours, the SunSource Comfort System gets help from a solar panel to heat and cool your home. It uses renewable solar energy to power the outdoor fan motor, reducing the utility-provided electricity needed for operation. The solar assist increases the system efficiency, reducing the power consumed by as much as 8%.