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Legacy Systems vs ONE HOUR AIR CONDITIONING AND HEATING: heat pump ratings compared

Against heat pumps of the same size and type, a typical Legacy Systems model beats 39% and a typical ONE HOUR AIR CONDITIONING AND HEATING model 39%. They are level.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Legacy Systems

39%

of similar heat pumps beaten by its typical model

Well below average

46 models listed

ONE HOUR AIR CONDITIONING AND HEATING

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°FLegacy Systems: Beats 39%ONE HOUR AIR CONDITIONING AND HEATING: Beats 40%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FLegacy Systems: Beats 13%ONE HOUR AIR CONDITIONING AND HEATING: Beats 13%
  • Winter-long heating efficiencyHSPF2Legacy Systems: Beats 21%ONE HOUR AIR CONDITIONING AND HEATING: Beats 21%
  • Summer-long cooling efficiencySEER2Legacy Systems: Beats 30%ONE HOUR AIR CONDITIONING AND HEATING: Beats 31%
  • Hot-day cooling efficiencyEER2Legacy Systems: Beats 66%ONE HOUR AIR CONDITIONING AND HEATING: Beats 67%

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

    Legacy Systems
    7%
    ONE HOUR AIR CONDITIONING AND HEATING
    7%

  • Xcel CC

    Legacy Systems
    0%
    ONE HOUR AIR CONDITIONING AND HEATING
    0%

  • CEE Advanced

    Legacy Systems
    0%
    ONE HOUR AIR CONDITIONING AND HEATING
    0%

  • ENERGY STAR CC

    Legacy Systems
    0%
    ONE HOUR AIR CONDITIONING AND HEATING
    0%

All-around best, ducted 2.5–3 tons

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

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

Legacy Systems

  1. 1GSZC703610A*with ducted air handler CAPTA4230*4A*+MBVC2001**-1ALegacy Systems3 tons · 34,800 Btu/h · DuctedNot a cold-climate pick: keeps 50% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    50% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    8.2 (HSPF2)
    Good
    Cooling efficiency
    17.2 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    64.2score / 100Heating 45 · Cooling 84
  2. 2GSZH503610A*with ducted air handler CAPTA4230*4A*+MBVC1601**-1ALegacy Systems3 tons · 34,200 Btu/h · DuctedNot a cold-climate pick: keeps 51% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    52% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    7.8 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    58.4score / 100Heating 41 · Cooling 76
  3. 3GSZH503010A*with indoor coil CAPTA4230*4A and furnace GM9S960805CUALegacy Systems2.5 tons · 28,400 Btu/h · DuctedNot a cold-climate pick: keeps 47% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    49% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.95 (COP at 5°F)
    Good
    Winter efficiency
    7.5 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    53.8score / 100Heating 32 · Cooling 76

ONE HOUR AIR CONDITIONING AND HEATING

  1. 1GSZC703610A*with ducted air handler CAPTA4230*4A*+MBVC2001**-1AONE HOUR AIR CONDITIONING AND HEATING3 tons · 34,800 Btu/h · DuctedNot a cold-climate pick: keeps 50% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    50% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    8.2 (HSPF2)
    Good
    Cooling efficiency
    17.2 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    64.2score / 100Heating 45 · Cooling 84
  2. 2GSZH503610A*with ducted air handler CAPTA4230*4A*+MBVC1601**-1AONE HOUR AIR CONDITIONING AND HEATING3 tons · 34,200 Btu/h · DuctedNot a cold-climate pick: keeps 51% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    52% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    7.8 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    58.4score / 100Heating 41 · Cooling 76
  3. 3GSZH503010A*with indoor coil CAPTA4230*4A and furnace GM9S960805CUAONE HOUR AIR CONDITIONING AND HEATING2.5 tons · 28,400 Btu/h · DuctedNot a cold-climate pick: keeps 47% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    49% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.95 (COP at 5°F)
    Good
    Winter efficiency
    7.5 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    53.8score / 100Heating 32 · Cooling 76

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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