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Mini-splits

48,000 Btu/h mini- and multi-splits

Rated products: 92 · model numbers: 367 · certified cooling 45,000–50,999 Btu/h

Of the 12 mini- and multi-split size classes on this site, the 48,000 Btu/h class has the second-lowest median SEER2. The Friedrich FPHFR48A3D keeps the largest share of its 47°F capacity at 5°F. The Lennox MLB048S4S-1P lists the top HSPF2 and the Toshiba Carrier MCY-MUB0488HS2P-UL the top SEER2.

020k40k60k47°F5°FBtu/hOne line per rated product, 47°F to 5°F, in its best 5°F match.Friedrich FPH…class median020k40k60k47°F5°FBtu/hOne line per rated product,47°F to 5°F, best 5°F match.Friedri…median

What the class is made of

Compressor staging

variable-speed
92

Refrigerant

R-410A
27
R-454B
40
R-32
25

Most listed brands: Mitsubishi Electric (11), MDV (9), Lennox (8), Midea (7), LG (6), BlueRidge (5), Fujitsu (4), and AI Air Conditioning (3).

Highest in the class, rating by rating

RatingHighestValueNext value down
Kept at 5°F1HVAC ACIQ-48Z-HH-M6C (joint, with 9 more)100%shared by 10 or more
Output at 5°FMDV MOE30U-48HFN1-M (48,000 Btu/h)56,500 Btu/hLG ZRUM048GSS0, 54,000 Btu/h
COP at 5°FToshiba Carrier MCY-MAP0487HS-UL2.60Toshiba Carrier MCY-MUB0488HS2P-UL, 2.50
HSPF2Lennox MLB048S4S-1P (joint, with 1 more)12Mitsubishi Electric MXZ-SM48NAMHZ2 (SEER2 23), 11.5
SEER2Toshiba Carrier MCY-MUB0488HS2P-UL24.35Hitachi HVAHP048C23S, 24.2
EER2Coleman CVAHP048B21S16.7Hitachi HVAHP048C23S, 15

Most heat kept at 5°F

EPA cold-climate designation only.

ProductKept at 5°FOutput at 5°FCOP at 5°FModel numbers
Friedrich FPHFR48A3D100%48,000 Btu/h2.101
Hisense AOU-48U3T25U100%48,000 Btu/h2.102
LG ZRUM048GSS0100%54,000 Btu/h2.101
1HVAC ACIQ-48Z-HH-M6C100%48,000 Btu/h2.0034
AI Air Conditioning A6MO23-48N2-M1H100%48,000 Btu/h2.0021
Carrier 37MGHAQ48FA3100%48,000 Btu/h2.004
Coleman UPC48CN23STG1100%48,000 Btu/h2.001
Hisense AUW-48U3TH1(JCH)100%44,000 Btu/h2.001
Mitsubishi Electric MXZ-SM48NLHZ (2025 listing)100%54,000 Btu/h2.001
Mitsubishi Electric MXZ-SM48NLHZ (2026 listing)100%54,000 Btu/h2.002

Filter this class in the cold finder

Next to the other mini-split sizes

Share of 47°F capacity kept at 5°F: dot = class median, ring = 90th percentile.

40%60%80%100%120%6,000 Btu/h9,000 Btu/h12,000 Btu/h15,000 Btu/h18,000 Btu/h24,000 Btu/h27,000 Btu/h30,000 Btu/h36,000 Btu/h42,000 Btu/h48,000 Btu/h60,000 Btu/h40%60%80%100%120%6k9k12k15k18k24k27k30k36k42k48k60k

Certified as of October 27, 2026.