What every best Central Air Conditioners has:
- High efficiency.
- Good value.
- A solid warranty.
The Dave Lennox Signature XC25 offers impressive performance and impressive efficiency, reviews say. Highlights including a modulating compressor that raises and lowers cooling by as little as 1 percent, letting it hold temperatures to within a half degree of the thermostat setting. That capability lowers energy costs, helping the XC25 to earn Energy Star Most Efficient status once again for 2018. The reliability of this Dave Lennox Signature model is considered to be good, and its noise low. See our full review »
The Energy Star Qualified Carrier Infinity 21 24ANB1 has a SEER of up to 21 and runs very quietly at as low as 65 decibels. It lacks a modulating compressor, but earns kudos nonetheless for its ability to maintain thermostat temperatures while keeping humidity in check. Experts also praise its build quality, including construction features that help it better withstand harsh weather conditions. Carrier's reliability record is strong, but the warranty is merely average. See our full review »
The Trane XV20i has a SEER as high as 22 and is Energy Star qualified in all sizes. Though not quite as efficient as the Dave Lennox Signature XC25, this Trane central air system also has a modulating compressor for rock-steady temperature control. The Trane XV20i has a good compressor warranty, 12 years, though other parts are only covered for the more-standard 10 years. Trane air conditioners have a reputation for reliability and fare well in consumer-satisfaction surveys. See our full review »
The Amana ASXC18 is less efficient than other top models, but it also costs less. Its maximum SEER rating is 19, and it runs at a fairly quiet 71 decibels, though some pricier models are quieter still. The two-stage compressor allows for good humidity control, especially when matched with a variable-speed blower. Along with the standard 10-year coverage on parts, Amana offers a limited lifetime warranty on the compressor and will replace the whole condensing unit if the compressor ever fails. See our full review »