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Bestcold vs ROVSUN: heat pump ratings compared

Against heat pumps of the same size and type, a typical Bestcold model beats 46% and a typical ROVSUN model 44%. Bestcold rates slightly higher overall.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

Bestcold

46%

of similar heat pumps beaten by its typical model

About average

79 models listed

ROVSUN

44%

of similar heat pumps beaten by its typical model

Below average

82 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FBestcold: Beats 45%ROVSUN: Beats 37%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBestcold: Beats 43%ROVSUN: Beats 41%
  • Winter-long heating efficiencyHSPF2Bestcold: Beats 48%ROVSUN: Beats 52%
  • Summer-long cooling efficiencySEER2Bestcold: Beats 51%ROVSUN: Beats 51%
  • Hot-day cooling efficiencyEER2Bestcold: Beats 39%ROVSUN: Beats 35%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    Bestcold
    68%
    ROVSUN
    78%

  • Xcel CC

    Bestcold
    66%
    ROVSUN
    74%

  • CEE Advanced

    Bestcold
    1%
    ROVSUN
    0%

  • ENERGY STAR CC

    Bestcold
    10%
    ROVSUN
    35%

All-around best, ductless 2.5–3 tons

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

Bestcold

  1. 1MYTW27NA23BCH24-OBestcold2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 57.5Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    24.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Good
    65.1score / 100Heating 58 · Cooling 73
  2. 2MYTW36NA23BCH24-OBestcold3 tons · 35,000 Btu/h · DuctlessCold-climate pick, score 52.5Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    22.5 (SEER2)
    Good
    Hot-day cooling
    11.1 (EER2)
    Below the middle
    51.1score / 100Heating 53 · Cooling 50
  3. 3MYTM28NA2R32BCH18-OBestcold2.5 tons · 28,000 Btu/h · DuctlessCold-climate pick, score 47.6Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.5 (HSPF2)
    Below the middle
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    38.7score / 100Heating 48 · Cooling 30

ROVSUN

  1. 1TMSC-27HA2/I2XI19B-OROVSUNAlso listed as TMSC-27HA2/I2XI19B-O2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 57.5Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    24.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Good
    65.1score / 100Heating 58 · Cooling 73
  2. 2TMSC-36HA2/I2XI19B-OROVSUNAlso listed as TMSC-36HA2/I2XI19B-O3 tons · 35,000 Btu/h · DuctlessCold-climate pick, score 52.5Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    22.5 (SEER2)
    Good
    Hot-day cooling
    11.1 (EER2)
    Below the middle
    51.1score / 100Heating 53 · Cooling 50
  3. 3RV27M2/19-OROVSUN2.5 tons · 28,000 Btu/h · DuctlessCold-climate pick, score 47.6Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.5 (HSPF2)
    Below the middle
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    38.7score / 100Heating 48 · Cooling 30

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Next steps

The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.

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