Dave Lennox Signature® Collection
XC21 Air Conditioner
The most quiet and efficient central air conditioner you can buy3
Discover absolute home comfort with the XC21, engineered for quiet and highly efficient operation. Exclusive SilentComfort™ technology works to maintain a more consistent temperature throughout your home, while helping to keep energy costs under control.VIEW PRODUCT DEMO >>
Here are some of the top features of the XC21:
Efficiency rating of up to 21.20 SEER can save you hundreds of dollars each year*, compared to a standard air conditioner.
SunSource® Solar-Ready option allows you to add solar modules and create a solar powered system that generates electricity for your air conditioner and more.
ENERGY STAR® qualified which means it meets or exceeds EPA guidelines for energy efficiency.
This product has been designated as one of the Most Efficient ENERGY STAR qualified products in 2013. Products that are recognized as the Most Efficient of ENERGY STAR in 2013 prevent greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. Environmental Protection Agency.
SilentComfort™ Outdoor Fan Motor with Composite Fan Blades provides extremely reliable starting and running performance, even under the harshest outdoor conditions.
This product is tax credit eligible under the American Taxpayer Relief Act of 2012. Please consult your tax expert for full details.
Features and Benefits
Warranty and Specs
XC21 Product Literature
EnglishXC21 Air Conditioner Product Brochure
SunSource Home Energy System Product Brochure
Système d'énergie domestique SunSource
SpanishSistema de energia para el hogar SunSource®
EnglishXC21 Air Conditioner Installation Manual
Rated 4.9 out of 5 by 73 reviewers.
Rated 5 out of 5 by David This product is the Rolls Royce of A/C Units This is the rolls royce of A/C units. Just had it installed and used ECM who gave me a huge rebate through Lennox and also FPL. The unit has lots of great features and has huge cooling capability. My house will go from 80 degrees to 72 in about 35mins. Also this unit has cut my electric bill in half so it will basically pay for itself in a year :) Very happy with this unit and you will be to. November 13, 2012
Rated 5 out of 5 by joejk Very quite in low speed. The unit runs very quiet in low speed and so far has not had to go to high speed. Is just slightly bigger than an old 14 seer unit that was 11 years old. Keeps the humidity to the preset level with no problem. April 29, 2013
Rated 5 out of 5 by Snatchmo Works great, cools quickly & quietly. The dehumidifier works quickly, reducing the energy needed to cool the house. It is very quiet, particularly in the single stage mode. I'm waiting for my first electric bill to see how efficiently it runs. April 26, 2013
Rated 5 out of 5 by Georock Quiet and efficient Quiet and efficient and an excellent value. I scarcely know when the inside air handler comes on and the thermostat is so easy to read and work. April 26, 2013
Rated 5 out of 5 by bonbon12 wonderful and quiet Awesome and so quiet we can't wait to see our next bill for savings April 23, 2013
Rated 5 out of 5 by SuperStud Great options for this model Great balance of efficiency and quiet operation. Will probably be put to the real test this summer. April 17, 2013
Rated 5 out of 5 by JimP QUIET!!! I'ts so quiet...sometimes I wonder if it's running! April 3, 2013
Rated 5 out of 5 by flgal53 The features are more than we could have hoped for! We are very pleased with our new Lennox XC21 AC and wouldn't hesitate to recommend it to family and friends. We have had Lennox products before and our neighbor just got one, too. March 30, 2013
*This chart compares the 5-year savings you can expect from a 21.20 SEER air conditioner vs. existing equipment with a 10.00 SEER rating and industry-standard equipment with a 13.00 SEER rating. The region used to calculate household fuel and utility costs reflect a cross-section of cities in the U.S. In addition to geography, cooling costs are based on 3-ton capacity specifications, with 1,800 cooling hours per year and 11.62 cents per KWh (Source: EIA National average electric rate-Rolling 12 months ending July 2009). Your actual costs will vary depending on the weather, local fuel rates, system settings and your personal lifestyle.
**icomfort Wi-Fi™ Touchscreen Thermostat must be installed with an icomfort-enabled indoor unit for maximum performance.
***Consult your tax expert before claiming energy efficiency tax credits.
****Must be accompanied by either a variable speed air handler or furnace and the ComfortSense® 7000 Series touchscreen thermostat.