Lennox XC21

Lennox XC21 Air Conditioner, a benchmark of efficiency and tranquility. With its SilentComfort™ Technology, it preserves the peace of your home even on the hottest days.

Lennox XC21

Air Conditioner: A paragon of innovation in comfort and energy savings. This advanced design offers an unparalleled cooling experience.

Key features :

– Energy Efficiency: Boasting an energy efficiency ratio of up to 21.00 SEER, this air conditioner significantly reduces electricity costs.
– Two-Stage Cooling: Equipped with a two-stage scroll compressor, it finely tunes cooling levels and humidity, aligning energy consumption with demand.
– SilentComfort™ Technology: This technology transforms the XC21 into one of the quietest multi-stage air conditioners, even when installed near a bedroom window.
– Environmental Responsibility: Utilizes R-410A refrigerant, recognized for its environmental friendliness.
– Warranty: This product comes with a 10-year limited warranty on the compressor and covered components.

Additionally, it’s ENERGY STAR® certified, signifying compliance with stringent energy efficiency guidelines set by the U.S. Environmental Protection Agency. If you’re considering installing the XC21 in your home, it’s advisable to contact a local dealer for installation and service details.


If unhappy with your purchase, simply let us know within 30 days.

Return Policy

We will refund your purchase with no restocking fee within 30 days.


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XC21 Air Conditioner


Tax Credit Eligible
Yes: Tax Credit Eligible
Energy Efficiency
Up to 21.00 SEER
Stages of Cooling
Sound Rating
As low as 69 dB
SilentComfort™ Technology
Yes: SilentComfort™ Technology
ENERGY STAR® Certified
Yes: ENERGY STAR® Certified
Environmentally Responsible
R-410A refrigerant
PermaGuard™ Cabinet and SmartHinge™ Louver Design
On-board Diagnostics
iComfort®-enabled technology
Full Line of Scroll Compressors
Yes: Full Line of Scroll Compressors
Compressor/Parts Warranty
All Dave Lennox Signature® Collection models come with a 10-Year Limited Warranty on compressor and covered components. For more information, visit www.Lennox.com/WarrantyYourWay.



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