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 HAIER 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 scores higher on 6 of the 6 ratings.

ECO AC
HAIER
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 9, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	ECO AC	HAIER
Efficiency index	59% (higher)median —	43% (higher)median —
COP at 5°F	47% (higher)median 1.90	29% (higher)median 1.80
Capacity retention at 5°F	61% (higher)median 80%	46% (higher)median 71%
HSPF2	64% (higher)median 9.5	56% (higher)median 9.5
SEER2	65% (higher)median 20.5	46% (higher)median 20.0
EER2	57% (higher)median 12.0	39% (higher)median 12.0
Heating capacity at 5°F	59% (higher)median 20,000 Btu/h	49% (higher)median 15,050 Btu/h
Outdoor models	49	48
AHRI certifications	90	99

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	ECO AC	HAIER
CEE 2025 Tier 1 (Split ASHP)	85.7%42 models	54.2%26 models
CEE 2026 Tier 1 (Split ASHP)	77.6%38 models	54.2%26 models
CEE Advanced Tier (Split ASHP)	0%0 models	4.2%2 models
Xcel Energy Colorado cold-climate ASHP (2025)	73.5%36 models	45.8%22 models
DOE Cold Climate Heat Pump Challenge	0%0 models	4.2%2 models
ENERGY STAR Cold Climate	73.5%36 models	33.3%16 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
HAIER
All models of the group

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

Source: AHRI Directory · as of Oct 9, 2026

Models per peer group · efficiency index within the group
Size and duct type	ECO AC	HAIER
Ducted, up to 1.5 tons	9 · index 62%	6 · index 36%
Ducted, 2 tons	5 · index 68%	5 · index 42%
Ducted, 2.5–3 tons	10 · index 57%	6 · index 38%
Ducted, 3.5–4.5 tons	5 · index 59%	5 · index 34%
Non-ducted, up to 1.5 tons	22 · index 57%	25 · index 55%
Non-ducted, 2 tons	5 · index 58%	9 · index 46%
Non-ducted, 2.5–3 tons	10 · index 59%	6 · index 32%
Non-ducted, 3.5–4.5 tons	2 · index 57%	4 · index 15%

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 type	ECO ACCold-climate score, best model	HAIERCold-climate score, best model
Ducted, up to 1.5 tons	70.4(50 is the typical model of its size class) (higher)EHH-O9BBwith ducted air handler EHH-D09BAAlso listed as EHH-O09BB8 of 9 models qualify · AHRI 207825494	52.9(50 is the typical model of its size class)2U20EH2HD**4 of 6 models qualify · AHRI 210151026
Ducted, 2 tons	80.3(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 206902027	57.0(50 is the typical model of its size class)3U24EH2HD**2 of 5 models qualify · AHRI 210082199
Ducted, 2.5–3 tons	74.7(50 is the typical model of its size class) (higher)EHI-O36BAHwith ducted air handler EHI-V36BA9 of 11 models qualify · AHRI 211253518	62.0(50 is the typical model of its size class)4U36EH2HD**2 of 6 models qualify · AHRI 210151027
Ducted, 3.5–4.5 tons	74.9(50 is the typical model of its size class) (higher)EMH-5O48BBH4 of 5 models qualify · AHRI 213088007	53.6(50 is the typical model of its size class)1U4248LP2HD**with ducted air handler USYM42UCDD1 of 5 models qualify · AHRI 211729105
Non-ducted, up to 1.5 tons	80.2(50 is the typical model of its size class)EHH-O9BBwith ductless indoor unit EHH-W09BBAlso listed as EHH-O09BB16 of 22 models qualify · AHRI 207825490	95.5(50 is the typical model of its size class) (higher)1U12EH2VHE*with ductless indoor unit AW12EH2VHD15 of 25 models qualify · AHRI 206389351
Non-ducted, 2 tons	76.1(50 is the typical model of its size class) (higher)EMH-3O24KBA3 of 5 models qualify · AHRI 215420705	61.1(50 is the typical model of its size class)3U24EH2HD**4 of 9 models qualify · AHRI 210082198
Non-ducted, 2.5–3 tons	73.7(50 is the typical model of its size class) (higher)EMH-5O42KBA8 of 10 models qualify · AHRI 215420703	67.0(50 is the typical model of its size class)4U36EH2HD**3 of 6 models qualify · AHRI 210082201
Non-ducted, 3.5–4.5 tons	80.5(50 is the typical model of its size class) (higher)EMH-5O48BBH1 of 2 models qualify · AHRI 213088006	19.2(50 is the typical model of its size class)1U4248LP2HD**with ductless indoor unit USYL42UCDD1 of 4 models qualify · AHRI 211744605

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 type	ECO ACAll-around score, best model	HAIERAll-around score, best model
Ducted, up to 1.5 tons	78.5(50 is the typical model of its size class) (higher)EHH-O18BBwith ducted air handler EHH-D18BA9 of 9 models have all five ratings · AHRI 207825496	44.7(50 is the typical model of its size class)1U09EH2HE**with ducted air handler USYM09UCDSA5 of 6 models have all five ratings · AHRI 212409472
Ducted, 2 tons	83.8(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 206902027	53.8(50 is the typical model of its size class)3U24EH2HD**3 of 5 models have all five ratings · AHRI 210082199
Ducted, 2.5–3 tons	74.6(50 is the typical model of its size class) (higher)EMH-3O27BBH10 of 10 models have all five ratings · AHRI 210586155	44.5(50 is the typical model of its size class)4U36EH2HD**4 of 6 models have all five ratings · AHRI 210151027
Ducted, 3.5–4.5 tons	82.0(50 is the typical model of its size class) (higher)EMH-5O48BBH5 of 5 models have all five ratings · AHRI 213088007	38.5(50 is the typical model of its size class)1U4248LP2HD**with ducted air handler USYM42UCDD4 of 5 models have all five ratings · AHRI 211729105
Non-ducted, up to 1.5 tons	88.7(50 is the typical model of its size class)EHP-O09KBAwith ductless indoor unit EHP-W09KBA22 of 22 models have all five ratings · AHRI 215416013	95.2(50 is the typical model of its size class) (higher)1U09EH2VHE*with ductless indoor unit AW09EH2VHD22 of 25 models have all five ratings · AHRI 206445819
Non-ducted, 2 tons	76.3(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 215416011	59.8(50 is the typical model of its size class)3U24MS2HD**7 of 9 models have all five ratings · AHRI 207698998
Non-ducted, 2.5–3 tons	70.8(50 is the typical model of its size class) (higher)EMH-4O36BBH10 of 10 models have all five ratings · AHRI 210586157	48.7(50 is the typical model of its size class)4U36EH2HD**5 of 6 models have all five ratings · AHRI 210082201
Non-ducted, 3.5–4.5 tons	73.8(50 is the typical model of its size class) (higher)EMH-5O48BBH2 of 2 models have all five ratings · AHRI 213088006	18.3(50 is the typical model of its size class)5U42MS2HD**4 of 4 models have all five ratings · AHRI 210404027

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
Rating	ECO AC	HAIER
COP at 5°F	beats 96% · 2.38EHH-O18BBNon-ducted, up to 1.5 tons	beats 93% · 2.311U12EH2VHE*Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 99% · 144%EHP-O09KBANon-ducted, up to 1.5 tons	beats 97% · 120%1U09EH2VHE*Non-ducted, up to 1.5 tons
HSPF2	beats 98% · 11.2EHH-O24BAAlso listed as EHH-O24BBDucted, 2 tons	beats 99% · 14.01U09EH2VHE*Non-ducted, up to 1.5 tons
SEER2	beats 99% · 20.9EMH-5O48BBHDucted, 3.5–4.5 tons	beats 100% · 30.01U09EH2VHE*Non-ducted, up to 1.5 tons
EER2	beats 99% · 16.6EHP-O09KBANon-ducted, up to 1.5 tons	beats 97% · 16.01U09EH2VHE*Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 96% · 20,000 Btu/hEMH-2O18BBHNon-ducted, up to 1.5 tons	beats 94% · 18,500 Btu/h2U20EH2HD**Non-ducted, up to 1.5 tons

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ECO AC vs HAIER heat pumps