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Prime vs TEMP SHIFT: heat pump ratings compared

Against heat pumps of the same size and type, a typical Prime model beats 23% and a typical TEMP SHIFT model 59%. TEMP SHIFT rates higher overall.

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

Prime

23%

of similar heat pumps beaten by its typical model

Well below average

5 models listed

TEMP SHIFT

59%

of similar heat pumps beaten by its typical model

Above average

28 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°FPrime: Beats 15%TEMP SHIFT: Beats 47%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FPrime: Beats 12%TEMP SHIFT: Beats 73%
  • Winter-long heating efficiencyHSPF2Prime: Beats 13%TEMP SHIFT: Beats 74%
  • Summer-long cooling efficiencySEER2Prime: Beats 12%TEMP SHIFT: Beats 60%
  • Hot-day cooling efficiencyEER2Prime: Beats 5%TEMP SHIFT: Beats 47%

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

    Prime
    0%
    TEMP SHIFT
    68%

  • Xcel CC

    Prime
    0%
    TEMP SHIFT
    68%

  • CEE Advanced

    Prime
    0%
    TEMP SHIFT
    0%

  • ENERGY STAR CC

    Prime
    0%
    TEMP SHIFT
    0%

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

Prime

None of Prime’s ductless, 2 tons models qualifies.

TEMP SHIFT

  1. 1TSMOD3024HFN1MU0Wwith ductless indoor unit TSMCD124HRFN1MT0W(GA)TEMP SHIFT2 tons · 24,000 Btu/h · DuctlessKeeps 103% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    103% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    11.5 (HSPF2)
    Top 10%
    86.1score / 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