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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%

Top cold-climate picks, ducted 3.5–4.5 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Bestcold

  1. 1MYUSA48NA23BCH18-Owith ducted air handler MYUSA48NA23BCH18-IBestcold4 tons · 48,000 Btu/h · DuctedKeeps 75% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.25 (COP at 5°F)
    Great
    Seasonal efficiency
    9.8 (HSPF2)
    Great
    76.6score / 100
  2. 2MYUA48NA23BCH19-Owith ducted air handler MYUA48NA23BCH19-IBestcold4 tons · 48,000 Btu/h · DuctedKeeps 73% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    73% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    9.8 (HSPF2)
    Great
    73.3score / 100
  3. 3MYOA48NA22BCH18-Owith ducted air handler MYOA48NA22BCH18-IBestcold4 tons · 47,000 Btu/h · DuctedKeeps 72% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.30 (COP at 5°F)
    Great
    Seasonal efficiency
    9.2 (HSPF2)
    Great
    72.2score / 100

ROVSUN

  1. 1RV-AHU55S-Owith ducted air handler RV-AHU55S-IROVSUN4.5 tons · 54,000 Btu/h · DuctedKeeps 93% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    93% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    66.4score / 100
  2. 2RV-AHU48TR-Owith ducted air handler RV-AHU48TR-IROVSUN4 tons · 48,000 Btu/h · DuctedKeeps 75% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.1 (HSPF2)
    Good
    44.1score / 100
  3. 3RV-AHU54TR-Owith ducted air handler RV-AHU54TR-IROVSUN4.5 tons · 54,000 Btu/h · DuctedKeeps 74% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.1 (HSPF2)
    Good
    42.8score / 100

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.

Open the advanced view