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LPS Legacy vs PolarWave: heat pump ratings compared

Against heat pumps of the same size and type, a typical LPS Legacy model beats 53% and a typical PolarWave model 54%. PolarWave rates slightly higher overall.

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

LPS Legacy

53%

of similar heat pumps beaten by its typical model

About average

58 models listed

PolarWave

54%

of similar heat pumps beaten by its typical model

About average

58 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°FLPS Legacy: Beats 51%PolarWave: Beats 44%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FLPS Legacy: Beats 49%PolarWave: Beats 57%
  • Winter-long heating efficiencyHSPF2LPS Legacy: Beats 62%PolarWave: Beats 66%
  • Summer-long cooling efficiencySEER2LPS Legacy: Beats 55%PolarWave: Beats 59%
  • Hot-day cooling efficiencyEER2LPS Legacy: Beats 42%PolarWave: Beats 43%

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

    LPS Legacy
    59%
    PolarWave
    60%

  • Xcel CC

    LPS Legacy
    40%
    PolarWave
    41%

  • CEE Advanced

    LPS Legacy
    3%
    PolarWave
    2%

  • ENERGY STAR CC

    LPS Legacy
    43%
    PolarWave
    47%

Top cold-climate picks, ductless 3.5–4.5 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, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

LPS Legacy

  1. 1DLCMHBH48EAKLPS Legacy4 tons · 48,000 Btu/h · DuctlessKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    80.5score / 100
  2. 2DLCLRCH48AAKwith ductless indoor unit DLFLFAH48XAKLPS Legacy4 tons · 48,000 Btu/h · DuctlessKeeps 70% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    56.3score / 100
  3. 3DLCMTAH48EAKLPS Legacy4 tons · 48,000 Btu/h · DuctlessKeeps 71% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.8 (HSPF2)
    Below the middle
    27.8score / 100

PolarWave

  1. 1ACIQ-60ZPL-HP230Bwith ductless indoor unit ACIQ-60FM-HH-MBPolarWave4.5 tons · 55,000 Btu/h · DuctlessKeeps 94% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    94% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.97 (COP at 5°F)
    Good
    Seasonal efficiency
    10.2 (HSPF2)
    Great
    76.8score / 100
  2. 2ACIQ-48Z-HH-M5BPolarWave4 tons · 48,000 Btu/h · DuctlessKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    76.2score / 100
  3. 3ACIQ-48ZPL-HP230Bwith ductless indoor unit ACIQ-48CC-HH-MBPolarWave4 tons · 48,000 Btu/h · DuctlessKeeps 91% of its heat at 5°FMeets ENERGY STAR CC
    Heat kept at 5°F
    91% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Top 10%
    76.0score / 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