Skip to content

1HVAC vs LG: heat pump ratings compared

Against heat pumps of the same size and type, a typical 1HVAC model beats 61% and a typical LG model 56%. 1HVAC rates higher overall.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

1HVAC

61%

of similar heat pumps beaten by its typical model

Well above average

70 models listed

LG

56%

of similar heat pumps beaten by its typical model

Above average

100 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°F1HVAC: Beats 57%LG: Beats 56%
  • Heating power kept at 5°FCapacity at 5°F vs 47°F1HVAC: Beats 59%LG: Beats 57%
  • Winter-long heating efficiencyHSPF21HVAC: Beats 71%LG: Beats 51%
  • Summer-long cooling efficiencySEER21HVAC: Beats 64%LG: Beats 49%
  • Hot-day cooling efficiencyEER21HVAC: Beats 55%LG: Beats 64%

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

    1HVAC
    87%
    LG
    86%
  • Xcel CC

    1HVAC
    74%
    LG
    78%
  • CEE Advanced

    1HVAC
    4%
    LG
    11%
  • ENERGY STAR CC

    1HVAC
    77%
    LG
    64%

All-around best, ducted up to 1.5 tons

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

1HVAC

  1. 1ACIQ-09ZPL-HP230Cwith ducted air handler ACIQ-09CD-HH-MC1HVAC1 ton · 9,000 Btu/h · DuctedCold-climate pick, score 79.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    120% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Winter efficiency
    13.8 (HSPF2)
    Top 10%
    Cooling efficiency
    20.5 (SEER2)
    Top 10%
    Hot-day cooling
    14.0 (EER2)
    Top 10%
    86.5score / 100Heating 80 · Cooling 93
  2. 2ACIQ-18-HPDwith ducted air handler ACIQ-18W-WMB1HVAC1.5 tons · 18,000 Btu/h · DuctedCold-climate pick, score 86.7Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    103% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Winter efficiency
    10.8 (HSPF2)
    Top 10%
    Cooling efficiency
    19.3 (SEER2)
    Good
    Hot-day cooling
    12.1 (EER2)
    Great
    79.8score / 100Heating 87 · Cooling 73
  3. 3ACIQ-18Z-HH-M3C1HVAC1.5 tons · 19,000 Btu/h · DuctedCold-climate pick, score 70.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    20.0 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    77.4score / 100Heating 71 · Cooling 84

LG

  1. 1KUSXA181Awith ducted air handler MSVT24***852FAALG1.5 tons · 17,400 Btu/h · DuctedCold-climate pick, score 80.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    137% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    18.0 (SEER2)
    Good
    Hot-day cooling
    13.5 (EER2)
    Top 10%
    78.7score / 100Heating 80 · Cooling 77
  2. 2KUSXB181Awith ducted air handler MSVT24***852FAALG1.5 tons · 17,400 Btu/h · DuctedCold-climate pick, score 75.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    124% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    17.5 (SEER2)
    Good
    Hot-day cooling
    13.5 (EER2)
    Top 10%
    75.6score / 100Heating 76 · Cooling 76
  3. 3KUSXA121Awith ducted air handler KNSLB121ALG1 ton · 12,500 Btu/h · DuctedCold-climate pick, score 70.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.95 (COP at 5°F)
    Good
    Winter efficiency
    9.8 (HSPF2)
    Good
    Cooling efficiency
    17.0 (SEER2)
    Good
    Hot-day cooling
    13.3 (EER2)
    Top 10%
    71.9score / 100Heating 70 · Cooling 74

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