Multi-Stage Air Conditioner

Lennox XC21

lennox xc21 multi stage air conditioner

Incredibly efficient two-stage air conditioner

Energy Star Qualified

Thanks to advanced engineering, you can enjoy smart, energy-efficient comfort all year. The XC21 product has been recognized as the Most Efficient of ENERGY STAR in 2020 because it prevents greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. EPA.

SEER Rating: Up to 21
Compressor Type: Two-Stage
Sound Rating: Low as 69 Decibels

Product Features

  • Up to 21 SEER
  • Two-stage operation
  • As low as 69 decibel sound rating
  • SilentComfort™ Technology
  • ENERGY STAR® Certified
  • Utilizes environmentally responsible R-410A refrigerant
  • PermaGuard™ Cabinet and SmartHinge™ Louver Design
  • iComfort®-enabled on-board diagnostic technology
  • Full line of scroll compressors
  • 1o-Year Limited Warranty on covered components including compressor

Estimated Cooling Savings

10 SEER vs 21 SEER Air Conditioner

Save 52% per Year*

*Based on US National Average

5-Year Savings


10-Year Savings


15-Year Savings


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