24,000 Btu/h mini- and multi-splits
Rated products: 259 · model numbers: 733 · certified cooling 20,500–25,499 Btu/h
Of the 12 mini- and multi-split size classes on this site, the 24,000 Btu/h class has the second-most rated products and the lowest share on R-454B. The Mitsubishi Electric MUZ-FX24NLHZ keeps the largest share of its 47°F capacity at 5°F. The Slimair SHC24VH2AG lists the top HSPF2 and the Gree GWH18AVEXF-D6DNA1A/O the top SEER2.
What the class is made of
Compressor staging
- variable-speed
- 259
Refrigerant
- R-454B
- 74
- R-410A
- 92
- R-32
- 93
Most listed brands: Mitsubishi Electric (26), Fujitsu (12), Hitachi (12), GE (11), LG (11), Lennox (10), AUX (9), and Gree (9).
Highest in the class, rating by rating
| Rating | Highest | Value | Next value down |
|---|---|---|---|
| Kept at 5°F | Mitsubishi Electric MUZ-FX24NLHZ | 134% | ACD MUD24KCH23S-O, 115% |
| Output at 5°F | Mitsubishi Electric SUZ-KA24NAHZ (2022 listing) | 32,000 Btu/h | Fujitsu AOUH24KUAH1, 30,400 Btu/h |
| COP at 5°F | Mitsubishi Electric SUZ-AA24NL | 3.00 | Mitsubishi Electric SUZ-KA24NA, 2.78 |
| HSPF2 | Slimair SHC24VH2AG | 14.5 | Breeze33 BZ33-HYP24OUT2-454-G3-P, 13.5 |
| SEER2 | Gree GWH18AVEXF-D6DNA1A/O (joint, with 1 more) | 27.5 | Gree AIRY24HP230V1AO, 27 |
| EER2 | Samsung AM024HCMDCG | 17 | Mitsubishi Electric PUZ-AK24NLHZ, 16.1 |
Most heat kept at 5°F
EPA cold-climate designation only.
| Product | Kept at 5°F | Output at 5°F | COP at 5°F | Model numbers |
|---|---|---|---|---|
| Mitsubishi Electric MUZ-FX24NLHZ | 134% | 26,600 Btu/h | 2.05 | 2 |
| ACD MUD24KCH23S-O | 115% | 30,000 Btu/h | 1.80 | 1 |
| Mitsubishi Electric SUZ-KA24NAHZ (2022 listing) | 114% | 32,000 Btu/h | 1.75 | 1 |
| Fujitsu AOUH24LMAS1 | 114% | 25,000 Btu/h | 2.04 | 1 |
| Fujitsu AOUH24KUAH1 | 113% | 30,400 Btu/h | 2.10 | 1 |
| Slimair SHC24VH2AG | 112% | 27,000 Btu/h | 2.10 | 1 |
| Panasonic CU-4Z24BBUC | 112% | 27,000 Btu/h | 1.85 | 1 |
| Quilt QO1-M3Z27-NC-NA | 111% | 30,000 Btu/h | 2.00 | 1 |
| AUX ASUM24HPMULO | 108% | 26,000 Btu/h | 2.10 | 4 |
| Coleman UPC24CN23STG1 | 108% | 24,200 Btu/h | 2.00 | 1 |
Next to the other mini-split sizes
Share of 47°F capacity kept at 5°F: dot = class median, ring = 90th percentile.
Certified as of October 27, 2026.