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ECO AC vs PERFECTAIRE heat pumps

Measured against models of the same size and duct type, ECO AC and PERFECTAIRE split the 6 ratings 3–3. ECO AC has 49 outdoor models, PERFECTAIRE has 36 outdoor models. ECO AC and PERFECTAIRE have no QMID on file and are not ranked. They share hardware: 23 equipment families appear under both names.

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CompareData as of updated · sources

Against comparable models

Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.
ECO AC and PERFECTAIRE on every ratingPeer scores, 0–100 · grey ticks: every ranked manufacturer · shaded: the middle half of each one’s modelsMeasured against models of the same size and duct type, ECO AC and PERFECTAIRE split the 6 ratings 3–3.
  • ECO AC
  • PERFECTAIRE
  • Other ranked manufacturers
ECO ACPERFECTA…

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingECO ACPERFECTAIRE
Efficiency index59% (higher)median —58% (higher)median —
COP at 5°F47% (higher)median 1.9040% (higher)median 1.90
Capacity retention at 5°F61%median 80%63%median 86%
HSPF264%median 9.569%median 9.5
SEER265% (higher)median 20.564% (higher)median 19.7
EER257% (higher)median 12.052% (higher)median 11.4
Heating capacity at 5°F59%median 20,000 Btu/h60%median 20,000 Btu/h
Outdoor models4936
AHRI certifications9070

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardECO ACPERFECTAIRE
CEE 2025 Tier 1 (Split ASHP)85.7%42 models80.6%29 models
CEE 2026 Tier 1 (Split ASHP)77.6%38 models75%27 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)73.5%36 models66.7%24 models
DOE Cold Climate Heat Pump Challenge0%0 models0%0 models
ENERGY STAR Cold Climate73.5%36 models66.7%24 models

Sizes and duct types offered

Models in each peer group, with the efficiency index of those models against the rest of the group.
Side by side, inside each size and duct typeShape: every model of the group · bars: each manufacturer’s middle half, median dot, 10th–90th line · 8 groups where both have models
  • ECO AC
  • PERFECTAIRE
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsNon-ducted, 3.5–4.5 tons1.97438 modelsmedian

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of

Models per peer group · efficiency index within the group
Size and duct typeECO ACPERFECTAIRE
Ducted, up to 1.5 tons9 · index 62%7 · index 61%
Ducted, 2 tons5 · index 68%4 · index 77%
Ducted, 2.5–3 tons10 · index 57%7 · index 64%
Ducted, 3.5–4.5 tons5 · index 59%6 · index 61%
Non-ducted, up to 1.5 tons22 · index 57%15 · index 48%
Non-ducted, 2 tons5 · index 58%3 · index 50%
Non-ducted, 2.5–3 tons10 · index 59%5 · index 64%
Non-ducted, 3.5–4.5 tons2 · index 57%4 · index 51%

Cold-climate and all-around picks, size class by size class

Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.

Cold-climate picks

Best cold-climate pick per size and duct type (keeps at least 70% of its heat at 5°F). 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.
Size and duct typeECO ACCold-climate score, best modelPERFECTAIRECold-climate score, best model
Ducted, up to 1.5 tons70.4(50 is the typical model of its size class)EHH-O9BBwith ducted air handler EHH-D09BAAlso listed as EHH-O09BB8 of 9 models qualify · AHRI 20782549474.9(50 is the typical model of its size class) (higher)3PAMSHH09-SZOwith ducted air handler 3PAMSDH097 of 7 models qualify · AHRI 207796628
Ducted, 2 tons80.3(50 is the typical model of its size class) (higher)EHH-O24BAwith ducted air handler EHH-D24BAAlso listed as EHH-O24BB4 of 4 models qualify · AHRI 20690202779.4(50 is the typical model of its size class)1KARDA24SZO20.5with ducted air handler 2PAMSDH24Also listed as 1PAMSHH24-SZW-20.5, 3PAMSHH24-SZO4 of 4 models qualify · AHRI 206348127
Ducted, 2.5–3 tons74.7(50 is the typical model of its size class)EHI-O36BAHwith ducted air handler EHI-V36BA9 of 11 models qualify · AHRI 21125351874.7(50 is the typical model of its size class)3PAHHSD36-SZOwith ducted air handler 3PAHHSD36-AHU6 of 7 models qualify · AHRI 211253526
Ducted, 3.5–4.5 tons74.9(50 is the typical model of its size class)EMH-5O48BBH4 of 5 models qualify · AHRI 21308800774.9(50 is the typical model of its size class)3PAMS48-HH-MZO54 of 6 models qualify · AHRI 207657345
Non-ducted, up to 1.5 tons80.2(50 is the typical model of its size class) (higher)EHH-O9BBwith ductless indoor unit EHH-W09BBAlso listed as EHH-O09BB16 of 22 models qualify · AHRI 20782549077.0(50 is the typical model of its size class)3PAMSHH12-SZOwith ductless indoor unit 3PAMSCONH12-28 of 15 models qualify · AHRI 210410111
Non-ducted, 2 tons76.1(50 is the typical model of its size class)EMH-3O24KBA3 of 5 models qualify · AHRI 21542070586.1(50 is the typical model of its size class) (higher)3PAMSHH24-SZOwith ductless indoor unit 3PAMSCH242 of 3 models qualify · AHRI 207796635
Non-ducted, 2.5–3 tons73.7(50 is the typical model of its size class) (higher)EMH-5O42KBA8 of 10 models qualify · AHRI 21542070373.4(50 is the typical model of its size class)3PAMS36-HH-MZO44 of 5 models qualify · AHRI 207657341
Non-ducted, 3.5–4.5 tons80.5(50 is the typical model of its size class)EMH-5O48BBH1 of 2 models qualify · AHRI 21308800680.5(50 is the typical model of its size class)3PAMS48-HH-MZO52 of 4 models qualify · AHRI 207657344

All-around best

Best all-around model per size and duct type. 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.
Size and duct typeECO ACAll-around score, best modelPERFECTAIREAll-around score, best model
Ducted, up to 1.5 tons78.5(50 is the typical model of its size class)EHH-O18BBwith ducted air handler EHH-D18BA9 of 9 models have all five ratings · AHRI 20782549685.2(50 is the typical model of its size class) (higher)3PAMSHH09-SZOwith ducted air handler 3PAMSDH097 of 7 models have all five ratings · AHRI 207796628
Ducted, 2 tons83.8(50 is the typical model of its size class) (higher)EHH-O24BAwith ducted air handler EHH-D24BAAlso listed as EHH-O24BB5 of 5 models have all five ratings · AHRI 20690202780.1(50 is the typical model of its size class)1KARDA24SZO20.5with ducted air handler 2PAMSDH24Also listed as 1PAMSHH24-SZW-20.5, 3PAMSHH24-SZO4 of 4 models have all five ratings · AHRI 206348127
Ducted, 2.5–3 tons74.6(50 is the typical model of its size class)EMH-3O27BBH10 of 10 models have all five ratings · AHRI 21058615574.6(50 is the typical model of its size class)3PAMS27-HH-MZO37 of 7 models have all five ratings · AHRI 207657338
Ducted, 3.5–4.5 tons82.0(50 is the typical model of its size class)EMH-5O48BBH5 of 5 models have all five ratings · AHRI 21308800782.0(50 is the typical model of its size class)3PAMS48-HH-MZO56 of 6 models have all five ratings · AHRI 207657345
Non-ducted, up to 1.5 tons88.7(50 is the typical model of its size class) (higher)EHP-O09KBAwith ductless indoor unit EHP-W09KBA22 of 22 models have all five ratings · AHRI 21541601384.4(50 is the typical model of its size class)3PAMSHH09-SZOwith ductless indoor unit 3PAMSHH09-UVWAlso listed as 3KARDA09SZO15 of 15 models have all five ratings · AHRI 207614054
Non-ducted, 2 tons76.3(50 is the typical model of its size class) (higher)EHP-O24KBAwith ductless indoor unit EHP-W24KBA5 of 5 models have all five ratings · AHRI 21541601170.7(50 is the typical model of its size class)3PAMSHH24-SZOwith ductless indoor unit 3PAMSHH24-UVWAlso listed as 3PAMSHH24-SZO-213 of 3 models have all five ratings · AHRI 207614056
Non-ducted, 2.5–3 tons70.8(50 is the typical model of its size class)EMH-4O36BBH10 of 10 models have all five ratings · AHRI 21058615770.8(50 is the typical model of its size class)3PAMS36-HH-MZO45 of 5 models have all five ratings · AHRI 207657341
Non-ducted, 3.5–4.5 tons73.8(50 is the typical model of its size class)EMH-5O48BBH2 of 2 models have all five ratings · AHRI 21308800673.8(50 is the typical model of its size class)3PAMS48-HH-MZO54 of 4 models have all five ratings · AHRI 207657344

All-around board, every manufacturer

Standout model on each rating

Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.
Top model per rating by peer percentile, with its AHRI-certified value and peer group
RatingECO ACPERFECTAIRE
COP at 5°Fbeats 96% · 2.38EHH-O18BBNon-ducted, up to 1.5 tonsbeats 78% · 2.103PAMSH12B-SZONon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 99% · 144%EHP-O09KBANon-ducted, up to 1.5 tonsbeats 93% · 108%3PAMSHH09-SZODucted, up to 1.5 tons
HSPF2beats 98% · 11.2EHH-O24BAAlso listed as EHH-O24BBDucted, 2 tonsbeats 98% · 12.03PAMSHH09-SZODucted, up to 1.5 tons
SEER2beats 99% · 20.9EMH-5O48BBHDucted, 3.5–4.5 tonsbeats 99% · 20.93PAMS48-HH-MZO5Ducted, 3.5–4.5 tons
EER2beats 99% · 16.6EHP-O09KBANon-ducted, up to 1.5 tonsbeats 95% · 15.83PAMSHH09-SZOAlso listed as 3KARDA09SZONon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 96% · 20,000 Btu/hEMH-2O18BBHNon-ducted, up to 1.5 tonsbeats 96% · 20,000 Btu/h3PAMS18-HH-MZO2Non-ducted, up to 1.5 tons

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