Exacting precision makes Lennox® air conditioners among the quietest and most energy-efficient units you can buy.
With such powerful cooling capacities, you’d expect Lennox® air conditioners to be loud. But they aren’t. Thanks to SilentComfort™ technology, they’re among the quietest in their class.
The most precise and efficient air conditioner available*
Efficiency Rating (SEER):
up to 28
ENERGY STAR® Qualified:
Price Guide $$$$
The most efficient two-stage central air conditioner you can buy*
Efficiency Rating (SEER):
up to 21
ENERGY STAR® Qualified:
Price Guide $$$
High-efficiency air conditioner with true variable capacity.
Efficiency Rating (SEER):
up to 20
ENERGY STAR® Qualified:
Price Guide $$$
High-efficiency air conditioner
Efficiency Rating (SEER):
up to 17
ENERGY STAR® Qualified:
Price Guide $$
Reliable and efficient air conditioner
Efficiency Rating (SEER):
up to 15.5
Price Guide $$
Availability: Regional
Affordable, efficient cooling
Efficiency Rating (SEER):
up to 17
ENERGY STAR® Qualified:
Price Guide $
*Efficiency claim based on comparison of the average SEER of the SL28XCV as compared to the average SEER of the competitive variable capacity compressor units as published in AHRI (December 2020). Actual system combination efficiency may vary; consult AHRI for exact system efficiencies. Precision claim based on the average cooling capacity range of the SL28XCV as compared to the average cooling capacity of the competitive variable capacity compressor units (December 2020). Averages calculated across 2, 3, 4 and 5 tonnage.
**Efficiency claim based on comparison of air conditioning and heat pump products' SEER as published in AHRI (January 2015). Actual system combination efficiency may vary; consult AHRI for exact system efficiencies. Precision claim based on the cooling capacity range of the XC/XP25-036 units as compared to equivalent-sized competitive variable capacity compressor units.
***Efficiency ratings established per AHRI’s test standard: ANSI/AHRI 210/240-2017 of two-stage central AC/HP equipment.
†Air conditioners/heat pumps have sound ratings established per AHRI’s test standard: AHRI 270-08 (August 2014). The SL18XC1 has the lowest sound rating of any single-stage air conditioner of any major U.S. brand of air conditioner equipment. Efficiency claim based on comparison of single-stage air conditioner products’ SEER as published in AHRI in June 2015. The SL18XC1 has a maximum rated efficiency of 18.50 SEER.