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COSTWAY vs GARVEE: heat pump ratings compared

Against heat pumps of the same size and type, a typical COSTWAY model beats 46% and a typical GARVEE model 39%. COSTWAY rates higher overall.

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

COSTWAY

46%

of similar heat pumps beaten by its typical model

About average

47 models listed

GARVEE

39%

of similar heat pumps beaten by its typical model

Well below average

46 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°FCOSTWAY: Beats 57%GARVEE: Beats 47%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCOSTWAY: Beats 35%GARVEE: Beats 36%
  • Winter-long heating efficiencyHSPF2COSTWAY: Beats 45%GARVEE: Beats 39%
  • Summer-long cooling efficiencySEER2COSTWAY: Beats 49%GARVEE: Beats 40%
  • Hot-day cooling efficiencyEER2COSTWAY: Beats 36%GARVEE: Beats 34%

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

    COSTWAY
    64%
    GARVEE
    74%

  • Xcel CC

    COSTWAY
    43%
    GARVEE
    70%

  • CEE Advanced

    COSTWAY
    0%
    GARVEE
    0%

  • ENERGY STAR CC

    COSTWAY
    30%
    GARVEE
    13%

Top cold-climate picks, ductless up to 1.5 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 Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

COSTWAY

  1. 1FP10897US-12WHwith ductless indoor unit FP10897US-22WHCOSTWAY1.5 tons · 18,000 Btu/h · DuctlessKeeps 82% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    82% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.25 (COP at 5°F)
    Great
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    79.2score / 100
  2. 2FP10839US-WHCOSTWAY1.5 tons · 17,700 Btu/h · DuctlessKeeps 81% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    64.5score / 100
  3. 3FP10895US-12WHwith ductless indoor unit FP10895US-22WHCOSTWAY1 ton · 12,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    64.0score / 100

GARVEE

  1. 1GMS1D2 PROGARVEE1.5 tons · 18,000 Btu/h · DuctlessKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    68.6score / 100
  2. 2GMSC9-Awith ductless indoor unit GMSC9-BGARVEE1 ton · 9,500 Btu/h · DuctlessKeeps 78% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    78% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.95 (COP at 5°F)
    Good
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    63.0score / 100
  3. 3ZAC18-2-S22-Awith ductless indoor unit ZAC18-2-S22-BGARVEE1.5 tons · 18,000 Btu/h · DuctlessKeeps 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)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    59.7score / 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