The Best Central Air Conditioners: How to Compare Models

Best Central Air Conditioners

Finding the best central air conditioner involves considering efficiency, comfort, durability, warranty, and extra services offered by the manufacturer . This review provides an overview of the top central air conditioner models based on these criteria.

Factors to Consider

1. Efficiency rating: since January 2023 US equipment is rated in SEER2 rather than SEER, measured under a test procedure with more realistic static pressure. SEER2 figures read roughly 4.5–5% lower than the old SEER number for the same equipment, so never compare a SEER figure directly against a SEER2 one.
2. Humidity control: Essential for maintaining comfort .
3. Compressor type (single-stage or multi-stage): Multi-stage compressors provide more consistent temperatures and energy savings .
4. Refrigerant type: R-410A dominated the previous generation of systems, but under the AIM Act's HFC phasedown new residential systems sold in the US since 2025 use lower-GWP refrigerants such as R-454B or R-32. R-410A is still made for servicing existing equipment.
5. Noise level: Look for models with noise levels under 60 dB .

Top Central Air Conditioner Models

1. Dave Lennox Collection XC25: 25 SEER, solar-compatible, smartphone-controlled, 47 x 35.5 x 39.5 inches .
2. Trane XV20i: 22 SEER, humidity control, multi-stage compressor, smartphone-compatible, insulated base pan, 55 dB .
3. Frigidaire iQ Drive FS4BG: 57 dB, humidity control, inverter-rotary technology (40-118% capacity) .
4. Carrier Infinity 24ANB1 Series: 21 SEER, compact (31 x 36.5 x 29.75 inches), insulated compressor and base pan, 65 dB .
5. American Standard Platinum ZV: 21 SEER, two-stage compressor, 55 dB, 41 x 33.6 x 29.75 inches .
6. Coleman Echelon Series AC8B: 18 SEER, Energy Star Most Efficient, smartphone-compatible, 69 dB .
7. Bryant Preferred Series 127A: 16.5 SEER, humidity control, smartphone-controlled, noise-reduction features, 72 dB .

Honorable Mentions

1. Amana AXSC18: 18 SEER, 71 dB, lifetime compressor warranty .
2. Goodman DSXC18: 18 SEER, 72 dB, lifetime compressor warranty .

Conclusion

The best central air conditioner for you depends on your specific needs, preferences, and budget. While the top 7 models cater to a wide range of customers, the honorable mentions may be suitable for those who prioritize compressor durability and only need occasional cooling.