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MSH LEGACY vs TRUENORTH: heat pump ratings compared

Against heat pumps of the same size and type, a typical MSH LEGACY model beats 51% and a typical TRUENORTH model 41%. MSH LEGACY rates higher overall.

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

MSH LEGACY

51%

of similar heat pumps beaten by its typical model

About average

18 models listed

TRUENORTH

41%

of similar heat pumps beaten by its typical model

Below average

18 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°FMSH LEGACY: Beats 78%TRUENORTH: Beats 36%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FMSH LEGACY: Beats 16%TRUENORTH: Beats 54%
  • Winter-long heating efficiencyHSPF2MSH LEGACY: Beats 33%TRUENORTH: Beats 45%
  • Summer-long cooling efficiencySEER2MSH LEGACY: Beats 29%TRUENORTH: Beats 41%
  • Hot-day cooling efficiencyEER2MSH LEGACY: Beats 91%TRUENORTH: Beats 33%

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

    MSH LEGACY
    0%
    TRUENORTH
    50%

  • Xcel CC

    MSH LEGACY
    0%
    TRUENORTH
    39%

  • CEE Advanced

    MSH LEGACY
    0%
    TRUENORTH
    0%

  • ENERGY STAR CC

    MSH LEGACY
    0%
    TRUENORTH
    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?

MSH LEGACY

  1. 1N4H5S30*K*AAA*with ducted air handler FMA4X30**ALMSH LEGACYAlso listed as R4H5S30*K*AAA2.5 tons · 28,200 Btu/h · DuctedNot a cold-climate pick: keeps 46% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    46% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.18 (COP at 5°F)
    Great
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    15.2 (SEER2)
    Below the middle
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    56.1score / 100Heating 47 · Cooling 66
  2. 2N4H5S36*K*AAA*with indoor coil EA*4X37L21A and furnace *92MSN0802120AMSH LEGACYAlso listed as R4H5S36*K*AAA3 tons · 34,600 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
    46% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Winter efficiency
    7.8 (HSPF2)
    Below the middle
    Cooling efficiency
    15.5 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Great
    54.3score / 100Heating 42 · Cooling 67

TRUENORTH

  1. 1WLWHD(30)ND3MOTRUENORTH2.5 tons · 28,400 Btu/h · DuctedCold-climate pick, score 54.7Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    53.1score / 100Heating 55 · Cooling 52
  2. 2WLWHD(42)ND3MOTRUENORTH3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 52.1Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.84 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    51.8score / 100Heating 52 · Cooling 52
  3. 3WLWHD(36)ND3MOTRUENORTH3 tons · 34,000 Btu/h · DuctedCold-climate pick, score 50.8Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    51.1score / 100Heating 51 · Cooling 52

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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