RebateBlue LogoRebate.Blue
    Market ReportExplore

    Efficiency Leaders

    The top-performing heat pumps across key efficiency metrics.

    Highest COP at 5°F - best for extreme cold

    Discover
    Efficiency Leaders
    Dark Horses
    Newcomers
    Superlatives
    Most Cloned
    Best by Capacity
    White Label Spotlight
    2

    York

    3.02 COP

    1

    Trane

    3.03 COP

    3

    Mitsubishi Electric

    3.00 COP

    Leaderboard

    Top units for best cold climate

    RankBrandModelCOP@5°FSEER2HSPF2
    Trane5TWX5036A13.0317.08.5
    YorkXH436E2S113.0215.27.5
    Mitsubishi ElectricSUZ-AA18NL***3.0017.510.6
    4
    Mitsubishi ElectricSUZ-AA15NL***3.0020.910.6
    5
    Mitsubishi ElectricSUZ-AA09NL***3.0021.712.9
    6
    YorkHH824E2S113.0019.09.5
    7
    TraneA5HP5036A13.0016.08.5
    8
    Trane5TWV0X24A12.9922.410.0
    9
    Mitsubishi ElectricSUZ-AA18NL***2.9917.510.3
    10
    Mitsubishi ElectricSUZ-AA15NL***2.9920.610.5

    Market Context

    Rankings based on analysis of 9,123 heat pump models. Market average COP@5°F is 2.02, average SEER2 is 17.9.

    Continue Exploring
    Records

    Records

    All-time records: highest SEER2, best COP@5°F, and more.

    Category Kings

    Category Kings

    Which brand is #1 in cooling, heating, and cold climate efficiency.

    Dark Horses
    New

    Dark Horses

    Discover underrated heat pumps with exceptional efficiency that fly under the radar.

    Explore

    • Advanced Analytics
    • Market Report
    • Explore All
    • QMID Lookup

    Discover

    • Category Kings
    • Brand Rankings
    • Brand vs Brand
    • Dark Horses

    Intelligence

    • Market Concentration
    • Technology Adoption
    • Records
    • FAQ

    Legal

    • Terms of Service
    • Privacy Policy
    Login
    RebateBlueRebate.Blue•© 2026 All rights reserved.
    A product ofUniColorado