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Gridless vs HAXXAIR: heat pump ratings compared

Against heat pumps of the same size and type, a typical Gridless model beats 70% and a typical HAXXAIR model 71%. HAXXAIR rates slightly higher overall.

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

Gridless

70%

of similar heat pumps beaten by its typical model

Well above average

15 models listed

HAXXAIR

71%

of similar heat pumps beaten by its typical model

Well above average

15 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°FGridless: Beats 64%HAXXAIR: Beats 55%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FGridless: Beats 73%HAXXAIR: Beats 78%
  • Winter-long heating efficiencyHSPF2Gridless: Beats 62%HAXXAIR: Beats 69%
  • Summer-long cooling efficiencySEER2Gridless: Beats 73%HAXXAIR: Beats 78%
  • Hot-day cooling efficiencyEER2Gridless: Beats 73%HAXXAIR: Beats 73%

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

    Gridless
    100%
    HAXXAIR
    100%

  • Xcel CC

    Gridless
    100%
    HAXXAIR
    100%

  • CEE Advanced

    Gridless
    13%
    HAXXAIR
    13%

  • ENERGY STAR CC

    Gridless
    100%
    HAXXAIR
    100%

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). What size is my system?

Gridless

  1. 1GRID36OCwith ducted air handler GRID36VAHGridless2.5 tons · 32,000 Btu/h · DuctedCold-climate pick, score 87.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.15 (COP at 5°F)
    Great
    Winter efficiency
    10.5 (HSPF2)
    Top 10%
    Cooling efficiency
    19.5 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    82.3score / 100Heating 88 · Cooling 77

HAXXAIR

  1. 1HVHDZ-36V2Dwith ducted air handler HAHDZ-36V2DHAXXAIR2.5 tons · 32,000 Btu/h · DuctedCold-climate pick, score 87.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.15 (COP at 5°F)
    Great
    Winter efficiency
    10.5 (HSPF2)
    Top 10%
    Cooling efficiency
    19.5 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    82.3score / 100Heating 88 · Cooling 77
  2. 2HVHMZ-36V2DHAXXAIR3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 54.3Meets 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
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    12.9 (EER2)
    Top 10%
    72.3score / 100Heating 54 · Cooling 90
  3. 3HVHMZ-27V2DHAXXAIR2.5 tons · 27,000 Btu/h · DuctedCold-climate pick, score 56.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.8 (HSPF2)
    Good
    Cooling efficiency
    18.0 (SEER2)
    Good
    Hot-day cooling
    11.5 (EER2)
    Good
    58.2score / 100Heating 57 · Cooling 60

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