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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%

Top cold-climate picks, ducted 2 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, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

Legacy Systems

None of Legacy Systems’s ducted, 2 tons models qualifies.

ONE HOUR AIR CONDITIONING AND HEATING

None of ONE HOUR AIR CONDITIONING AND HEATING’s ducted, 2 tons models qualifies.

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