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ECO AC heat pump efficiency: 22 outdoor models compared

ECO AC has 22 heat pump outdoor models certified with this refrigerant group, in 34 AHRI-certified combinations. Each model is compared with models of the same size and duct type, so the scores below do not depend on which sizes ECO AC makes. ECO AC has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

New to heat pump ratings? The Simple view explains them in plain words →

ManufacturerData as of updated · sources

Outdoor models
22
AHRI certifications
34
Efficiency index
59%
Typical model vs same-size, same-type peers (27 models)
Meet CEE 2025
95.5%
21 models

How ECO AC compares with comparable models

For each rating: the share of same-size, same-type models that a typical model of this manufacturer beats (50% is typical), its rank, and the raw median for context. Raw medians are not comparable across manufacturers that make different sizes.
ECO AC against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of ECO AC’s own modelsECO AC is strongest on capacity retention at 5°F (its typical model beats 68% of comparable models) and weakest on COP at 5°F (44%).
  • ECO AC
  • Middle half of its models
  • Other ranked manufacturers
ECO AC

Source: AHRI Directory, NEEP · as of

Average peer percentile of ECO AC’s models
RatingBeats comparable modelsRankRaw median
Efficiency index27 models scored59%Not ranked—
COP at 5°F27 models scored44%Not ranked1.95
Capacity retention at 5°F27 models scored68%Not ranked90%
HSPF227 models scored47%Not ranked10.0
SEER227 models scored64%Not ranked21.0
EER227 models scored68%Not ranked12.3
Heating capacity at 5°F27 models scored63%Not ranked18,000 Btu/h

Standards met

Share of ECO AC’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)95.5%21
CEE 2026 Tier 1 (Split ASHP)95.5%21
CEE Advanced Tier (Split ASHP)13.6%3
Xcel Energy Colorado cold-climate ASHP (2025)95.5%21
DOE Cold Climate Heat Pump Challenge13.6%3
ENERGY STAR Cold Climate100%22

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
ECO AC’s models inside each size and duct typeShape: every model of the group · blue: the middle half of this manufacturer’s models there, median dot, 10th–90th percentile line
  • ECO AC (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, up to 1.5 tons1.901,783 modelsDucted, 2 tons2.001,090 modelsDucted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsNon-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 modelsNon-ducted, 2.5–3 tons2.001,106 modelsNon-ducted, 3.5–4.5 tons2.00564 modelsmedian

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, up to 1.5 tons149%43%23%60%
Ducted, 2 tons155%30%36%55%
Ducted, 2.5–3 tons363%39%59%71%
Ducted, 3.5–4.5 tons274%55%71%80%
Non-ducted, up to 1.5 tons1061%46%48%69%
Non-ducted, 2 tons455%22%44%66%
Non-ducted, 2.5–3 tons452%47%38%51%
Non-ducted, 3.5–4.5 tons262%82%40%43%

Every ECO AC model in the market

ECO AC’s 27 models with a known size and duct type, over the shape of the whole catalog.
ECO AC models by size and ratingColoured: ECO AC · grey shapes: all 14,508 models · lines: catalog medians by size
  • ECO AC models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 27 eco ac models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 models, half a ton at a time.
Show the data as a table
COP at 5°F by size and duct type (every model, by rated cooling capacity)
Duct type, sizeModels10th pct.25thMedian75th90th
Ducted, 0.5 tons8261.641.711.751.852.24
Ducted, 1 ton4071.801.902.052.412.45
Ducted, 1.5 tons9921.751.862.002.172.40
Ducted, 2 tons9991.751.862.002.182.30
Ducted, 2.5 tons1,0401.701.802.002.102.36
Ducted, 3 tons6961.801.902.002.102.42
Ducted, 3.5 tons8651.701.802.002.102.46
Ducted, 4 tons7261.801.862.002.122.41
Ducted, 4.5 tons6901.701.801.902.102.20
Ducted, 5 tons861.892.002.102.102.10
Non-ducted, 0.5 tons1,1861.751.801.902.002.22
Non-ducted, 1 ton1,3431.801.801.992.102.21
Non-ducted, 1.5 tons1,2611.801.802.002.102.31
Non-ducted, 2 tons7611.801.982.002.102.30
Non-ducted, 2.5 tons4031.801.852.002.002.10
Non-ducted, 3 tons4731.901.982.002.032.20
Non-ducted, 3.5 tons2802.002.002.002.052.10
Non-ducted, 4 tons2041.962.002.052.102.11
Non-ducted, 4.5 tons781.901.911.952.012.01
Non-ducted, 5 tons841.992.002.052.202.20

Source: AHRI Directory · as of

Top ECO AC models

Its top five cold-climate picks and its top five all-around models across sizes (both scores compare each model with models of its own size and duct type, so sizes compare), then, on each single rating, the model that beats the largest share of comparable models.

Cold-climate picks

Top 5 ECO AC cold-climate picks across sizes. Qualifies when its capacity retention at 5°F (capacity at 5°F as a share of capacity at 47°F) is at least 70% and Capacity retention at 5°F, COP at 5°F, HSPF2 are all rated. Score = the equal-weight mean of its peer percentiles on Capacity retention at 5°F, COP at 5°F, HSPF2 (share of the other models in its peer group it beats, 0–100), all from one certified pairing: in each duct type a model is sold in, its qualifying pairing of that type with the best score; equal scores (one decimal) go to the higher heating capacity at 5°F.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2Btu/h @5°FSEER2MeetsCombosAHRI ref.Compared withScore
1EHP-O09KBBECO AC · Airy 30SEERwith ductless indoor unit EHP-W09KBB1 ton9,100 Btu/h · Non-ducted108%2.1111.211,50030.0CEE 25CEE 26CEE AdvXcelDOEES CC1216772328Non-ducted, up to 1.5 tons87.2
2EHI-O60KBBECO AC · Ultranixxwith ducted air handler EHI-V60KBB4.5 tons53,000 Btu/h · Ducted100%2.1010.554,00018.5CEE 25CEE 26CEE AdvXcelDOEES CC2217258401Ducted, 3.5–4.5 tons85.1
3EMH-4O36KBBECO AC · Multi-Zone Outdoor3 tons36,000 Btu/h · Non-ducted100%2.1010.036,00021.0CEE 25CEE 26CEE AdvXcelDOEES CC3216772342Non-ducted, 2.5–3 tons77.2
4EHI-O36KBBECO AC · Ultranixxwith ducted air handler EHI-V36KBB3 tons34,000 Btu/h · Ducted100%2.0010.034,00018.2CEE 25CEE 26XcelES CC2217258402Ducted, 2.5–3 tons76.9
5EHP-O12KBBECO AC · Airy 30SEERwith ductless indoor unit EHP-W12KBB1 ton12,000 Btu/h · Non-ducted100%2.0010.012,20029.5CEE 25CEE 26XcelES CC1216772327Non-ducted, up to 1.5 tons72.1

All-around best

Top 5 ECO AC models on the all-around score across sizes. Score = 50% heating, the mean of its peer percentiles on COP at 5°F, Capacity retention at 5°F, HSPF2, plus 50% cooling, the mean of its peer percentiles on SEER2 and EER2 (share of the other models in its peer group it beats, 0–100). All five ratings are required; there is no minimum heat kept at 5°F. In each duct type a model is sold in, it is scored on its pairing of that type with the best score; equal scores (one decimal) go to the higher cold-climate score, then the higher heating capacity at 5°F.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2SEER2EER2MeetsCombosAHRI ref.Compared withScoreHeating halfCooling halfCold-climate score
1EHP-O09KBBECO AC · Airy 30SEERwith ductless indoor unit EHP-W09KBB1 ton9,100 Btu/h · Non-ducted108%2.1111.230.016.8CEE 25CEE 26CEE AdvXcelDOEES CC1216772328Non-ducted, up to 1.5 tons92.687.297.987.2
2EHP-O12KBBECO AC · Airy 30SEERwith ductless indoor unit EHP-W12KBB1 ton12,000 Btu/h · Non-ducted100%2.0010.029.515.2CEE 25CEE 26XcelES CC1216772327Non-ducted, up to 1.5 tons84.372.196.672.1
3EHI-O60KBBECO AC · Ultranixxwith ducted air handler EHI-V48KBB4 tons48,000 Btu/h · Ducted100%2.0010.019.012.0CEE 25CEE 26CEE AdvXcelDOEES CC2217452743Ducted, 3.5–4.5 tons83.178.987.385.1
4EHP-O24KBBECO AC · Airy 30SEERwith ductless indoor unit EHP-W24KBB2 tons22,000 Btu/h · Non-ducted100%1.8010.027.014.0CEE 25CEE 26XcelES CC1216772325Non-ducted, 2 tons78.160.196.160.1
5EHH-O09KBBECO AC · Clivia 27SEERwith ductless indoor unit EHH-W09KBB1 ton9,100 Btu/h · Non-ducted90%1.8810.426.015.0CEE 25CEE 26XcelES CC1216772332Non-ducted, up to 1.5 tons78.062.293.862.2

Best model on each rating

ECO AC’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FEMH-4O36KBB2.10Non-ducted, 2.5–3 tons88%216772342
Capacity retention at 5°FEHP-O24KBB100%Non-ducted, 2 tons94%216772325
HSPF2EHI-O60KBB10.5Ducted, 3.5–4.5 tons90%217258401
SEER2EHP-O24KBB27.0Non-ducted, 2 tons99%216772325
EER2EHP-O09KBB16.8Non-ducted, up to 1.5 tons98%216772328
Heating capacity at 5°FEHI-O60KBB54,000 Btu/hDucted, 3.5–4.5 tons98%217258401

All 22 ECO AC models in Explore

ECO AC size class by size class: cold-climate and all-around

Its best model on each board in every size and duct type it makes. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there). Cold-climate picks must keep at least 70% of their heat at 5°F; the all-around score needs all five ratings and has no such bar.
ECO AC: best cold-climate pick and best all-around model per size and duct type, with how many of its models are on each board (top 5 and 5 per class are in the snapshot)
Size and duct typeCold-climate pickCold-climate score, best modelAll-around bestAll-around score, best model
Ducted, up to 1.5 tons39.3(50 is the typical model of its size class)EMH-2O18KBB1 of 1 models qualify · AHRI 21846141948.6(50 is the typical model of its size class)EMH-2O18KBB1 of 1 models have all five ratings · AHRI 218461419
Ducted, 2 tons49.0(50 is the typical model of its size class)EMH-3O24KBB1 of 1 models qualify · AHRI 21846142172.4(50 is the typical model of its size class)EHI-O36KBBwith ducted air handler EHI-V24KBB2 of 2 models have all five ratings · AHRI 217452744
Ducted, 2.5–3 tons76.9(50 is the typical model of its size class)EHI-O36KBBwith ducted air handler EHI-V36KBB3 of 3 models qualify · AHRI 21725840261.6(50 is the typical model of its size class)EMH-4O30KBB2 of 2 models have all five ratings · AHRI 218461417
Ducted, 3.5–4.5 tons85.1(50 is the typical model of its size class)EHI-O60KBBwith ducted air handler EHI-V60KBB2 of 2 models qualify · AHRI 21725840183.1(50 is the typical model of its size class)EHI-O60KBBwith ducted air handler EHI-V48KBB2 of 2 models have all five ratings · AHRI 217452743
Non-ducted, up to 1.5 tons87.2(50 is the typical model of its size class)EHP-O09KBBwith ductless indoor unit EHP-W09KBB10 of 10 models qualify · AHRI 21677232892.6(50 is the typical model of its size class)EHP-O09KBBwith ductless indoor unit EHP-W09KBB10 of 10 models have all five ratings · AHRI 216772328
Non-ducted, 2 tons67.5(50 is the typical model of its size class)EMH-3O24KBB3 of 4 models qualify · AHRI 21677234078.1(50 is the typical model of its size class)EHP-O24KBBwith ductless indoor unit EHP-W24KBB4 of 4 models have all five ratings · AHRI 216772325
Non-ducted, 2.5–3 tons77.2(50 is the typical model of its size class)EMH-4O36KBB4 of 4 models qualify · AHRI 21677234270.5(50 is the typical model of its size class)EMH-4O30KBB4 of 4 models have all five ratings · AHRI 216772341
Non-ducted, 3.5–4.5 tons66.5(50 is the typical model of its size class)EMH-5O42KBB2 of 2 models qualify · AHRI 21677234367.7(50 is the typical model of its size class)EMH-5O42KBB2 of 2 models have all five ratings · AHRI 216772343

All-around board, every manufacturer

Newest ECO AC certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified ECO AC outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
EMH-4O36KBBECO AC3 tons36,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8494%9.019.0CEE 25CEE 26CEE AdvXcelDOEES CC3218461424
EMH-3O24KBBECO AC2 tons24,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8090%9.019.0CEE 25CEE 26XcelES CC3218461422
EMH-2O18KBBECO AC1.5 tons18,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8076%9.019.0CEE 25CEE 26XcelES CC3218461420
EMH-4O30KBBECO AC2.5 tons28,400 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8188%9.019.0CEE 25CEE 26XcelES CC3218461418
EMH-5O42KBBECO AC3.5 tons42,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8488%9.019.0CEE 25CEE 26XcelES CC3218461416

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ECO AC includes these brand names as listed in AHRI: ECO AC. Standards are checked against published thresholds; program rules beyond ratings are not checked.