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Gridless vs Hessaire: heat pump ratings compared

Against heat pumps of the same size and type, a typical Gridless model beats 60% and a typical Hessaire model 50%. Gridless rates higher overall.

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

Gridless

60%

of similar heat pumps beaten by its typical model

Well above average

11 models listed

Hessaire

50%

of similar heat pumps beaten by its typical model

About average

11 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 40%Hessaire: Beats 35%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FGridless: Beats 77%Hessaire: Beats 50%
  • Winter-long heating efficiencyHSPF2Gridless: Beats 60%Hessaire: Beats 39%
  • Summer-long cooling efficiencySEER2Gridless: Beats 68%Hessaire: Beats 46%
  • Hot-day cooling efficiencyEER2Gridless: Beats 56%Hessaire: Beats 31%

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%
    Hessaire
    55%

  • Xcel CC

    Gridless
    100%
    Hessaire
    36%

  • CEE Advanced

    Gridless
    0%
    Hessaire
    0%

  • ENERGY STAR CC

    Gridless
    91%
    Hessaire
    36%

Top cold-climate picks, ducted up to 1.5 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 Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Gridless

No ducted, up to 1.5 tons model from Gridless.

Hessaire

No ducted, up to 1.5 tons model from Hessaire.

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