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IWAE heat pumps: how do their ratings compare?

A typical IWAE heat pump beats 52% of similar heat pumps (same size and type), which is about average. IWAE has 23 heat pump models in this list.

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

Overall score

52%

of similar heat pumps beaten by its typical model

About average

IWAE has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 10 models with every rating.

IWAE, rating by ratingStrongest on heating power kept at 5°f (beats 61%), weakest on efficiency on a 5°f day (beats 26%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 26%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 61%
  • Winter-long heating efficiencyHSPF2Beats 35%
  • Summer-long cooling efficiencySEER2Beats 40%
  • Hot-day cooling efficiencyEER2Beats 36%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want IWAE’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 35%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    8 models. All brands: 57%.

    See them

  • 35%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    8 models. All brands: 53%.

    See them

  • 0%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    None of its models yet. All brands: 3%.

Top IWAE cold-climate picks, by size

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, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

1 of IWAE’s 3 models of this size and type qualify.

  1. 1**AESHV9T3621BAwith ducted air handler **AEAMPVT36D21BAIWAE3 tons · 34,000 Btu/h · DuctedKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Good
    55.4score / 100

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has IWAE’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

Open the advanced view