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Compact mini-splits with higher official COP at 5°F

Compact mini-split heat pumps with the higher official COP at 5°F figures on the ENERGY STAR record. Picks are drawn from the official-spec ranking in this category; commissions never change the order.

Updated 2026-11-134 picksFull compact mini-split heat pumps ranking

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  1. 1

    Toshiba Carrier RAV-BP121AT2P-UL

    Score is within our compact mini-split heat pumps ranking
    8.8/10

    Official ENERGY STAR record lists a COP at 5°F of 2.5.

    What we like

    • Official ENERGY STAR record lists 26 SEER2.
    • Official ENERGY STAR record lists 12 HSPF2.
    • Official ENERGY STAR record lists a COP at 5°F of 2.5.
    • Official ENERGY STAR record lists a cold-climate designation.

    Watch out for

    • Official ratings are for the certified outdoor and indoor combination shown; a different official indoor head can change the certified figures.
    Check price at AmazonFull specs & sources
  2. 2

    Fujitsu AIRSTAGE H-Series (AOUH09KTAP1)

    Score is within our compact mini-split heat pumps ranking
    9.7/10

    Official ENERGY STAR record lists a COP at 5°F of 2.48.

    What we like

    • Official ENERGY STAR record lists 33.5 SEER2.
    • Official ENERGY STAR record lists 14 HSPF2.
    • Official ENERGY STAR record lists a COP at 5°F of 2.48.
    • Official ENERGY STAR record lists a cold-climate designation.

    Watch out for

    • Official ratings are for the certified outdoor and indoor combination shown; a different official indoor head can change the certified figures.
    Check price at AmazonFull specs & sources
  3. 3

    Trane / Mitsubishi Electric M-Series (NTXSPB06B112A)

    Score is within our compact mini-split heat pumps ranking
    8.6/10

    Official ENERGY STAR record lists a COP at 5°F of 2.46.

    What we like

    • Official ENERGY STAR record lists 32.2 SEER2.
    • Official ENERGY STAR record lists 10.9 HSPF2.
    • Official ENERGY STAR record lists a COP at 5°F of 2.46.
    • Official ENERGY STAR record lists a cold-climate designation.

    Watch out for

    • Official ratings are for the certified outdoor and indoor combination shown; a different official indoor head can change the certified figures.
    Check price at AmazonFull specs & sources
  4. 4

    Mitsubishi Electric M-Series (MUZ-FX06NLHZ)

    Score is within our compact mini-split heat pumps ranking
    9.5/10

    Official ENERGY STAR record lists a COP at 5°F of 2.38.

    What we like

    • Official ENERGY STAR record lists 35 SEER2.
    • Official ENERGY STAR record lists 13 HSPF2.
    • Official ENERGY STAR record lists a COP at 5°F of 2.38.
    • Official ENERGY STAR record lists a cold-climate designation.

    Watch out for

    • Official ratings are for the certified outdoor and indoor combination shown; a different official indoor head can change the certified figures.
    Check price at AmazonFull specs & sources

Keep comparing

Full rankingBest compact mini-split heat pumps, ranked on official ENERGY STAR specs Buying guideCompact mini-splits with higher official SEER2 Head-to-headFujitsu AIRSTAGE H-Series (AOUH09KTAP1) vs Mitsubishi Electric M-Series (MUZ-FX06NLHZ) TopicCompact mini-splits