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.

DUOHOME 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, DUOHOME scores higher on 4 of the 6 ratings.

DUOHOME
HAIER
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 11, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	DUOHOME	HAIER
Efficiency index	52% (higher)median —	43% (higher)median —
COP at 5°F	51% (higher)median 1.99	29% (higher)median 1.80
Capacity retention at 5°F	38%median 66%	46%median 71%
HSPF2	61% (higher)median 9.3	56% (higher)median 9.5
SEER2	57% (higher)median 20.0	46% (higher)median 20.0
EER2	44% (higher)median 10.7	39% (higher)median 12.0
Heating capacity at 5°F	43%median 14,800 Btu/h	49%median 15,050 Btu/h
Outdoor models	22	48
AHRI certifications	37	99

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	DUOHOME	HAIER
CEE 2025 Tier 1 (Split ASHP)	59.1%13 models	54.2%26 models
CEE 2026 Tier 1 (Split ASHP)	50%11 models	54.2%26 models
CEE Advanced Tier (Split ASHP)	0%0 models	4.2%2 models
Xcel Energy Colorado cold-climate ASHP (2025)	27.3%6 models	45.8%22 models
DOE Cold Climate Heat Pump Challenge	0%0 models	4.2%2 models
ENERGY STAR Cold Climate	0%0 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

DUOHOME
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 11, 2026

Models per peer group · efficiency index within the group
Size and duct type	DUOHOME	HAIER
Ducted, up to 1.5 tons	2 · index 69%	6 · index 36%
Ducted, 2 tons	1 · index 84%	5 · index 42%
Ducted, 2.5–3 tons	4 · index 55%	6 · index 38%
Ducted, 3.5–4.5 tons	4 · index 53%	5 · index 34%
Ducted, 5 tons and up	1 · index 55%	None
Non-ducted, up to 1.5 tons	9 · index 49%	25 · index 55%
Non-ducted, 2 tons	2 · index 47%	9 · index 46%
Non-ducted, 2.5–3 tons	5 · index 49%	6 · index 32%
Non-ducted, 3.5–4.5 tons	3 · index 43%	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	DUOHOMECold-climate score, best model	HAIERCold-climate score, best model
Ducted, up to 1.5 tons	52.0(50 is the typical model of its size class)D2OA-18HFN1-M1 of 2 models qualify · AHRI 211911389	52.9(50 is the typical model of its size class) (higher)2U20EH2HD**4 of 6 models qualify · AHRI 210151026
Ducted, 2 tons	80.3(50 is the typical model of its size class) (higher)DOD33-24HFN1-MT0Wwith ducted air handler DTIU-24HWFN1-M1 of 1 models qualify · AHRI 214797741	57.0(50 is the typical model of its size class)3U24EH2HD**2 of 5 models qualify · AHRI 210082199
Ducted, 2.5–3 tons	57.8(50 is the typical model of its size class)D3OJ-27HFN1-M1 of 4 models qualify · AHRI 211911392	62.0(50 is the typical model of its size class) (higher)4U36EH2HD**2 of 6 models qualify · AHRI 210151027
Ducted, 3.5–4.5 tons	None on this board (0 of 4 models qualify)	53.6(50 is the typical model of its size class)1U4248LP2HD**with ducted air handler USYM42UCDD1 of 5 models qualify · AHRI 211729105
Ducted, 5 tons and up	None on this board (0 of 1 models qualify)	No models in this size class
Non-ducted, up to 1.5 tons	63.3(50 is the typical model of its size class)DOX230-09HFN1-MW5Wwith ductless indoor unit DCA3U-09HRFN1-M(C)3 of 9 models qualify · AHRI 214875723	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	59.4(50 is the typical model of its size class)DOD33-24HFN1-MT0Wwith ductless indoor unit DCD1-24HRFN1-MT0W(GA)1 of 2 models qualify · AHRI 214875724	61.1(50 is the typical model of its size class) (higher)3U24EH2HD**4 of 9 models qualify · AHRI 210082198
Non-ducted, 2.5–3 tons	50.1(50 is the typical model of its size class)D3OJ-27HFN1-M1 of 5 models qualify · AHRI 211911391	67.0(50 is the typical model of its size class) (higher)4U36EH2HD**3 of 6 models qualify · AHRI 210082201
Non-ducted, 3.5–4.5 tons	None on this board (0 of 3 models qualify)	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	DUOHOMEAll-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)DOX430-18HFN1-MU0Wwith ducted air handler DTIU-18HWFN1-M2 of 2 models have all five ratings · AHRI 214797740	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)DOD33-24HFN1-MT0Wwith ducted air handler DTIU-24HWFN1-M1 of 1 models have all five ratings · AHRI 214797741	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	71.7(50 is the typical model of its size class) (higher)D3OJ-27HFN1-M3 of 4 models have all five ratings · AHRI 211911392	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	63.5(50 is the typical model of its size class) (higher)D5OG-48HFN1-M3 of 4 models have all five ratings · AHRI 211911398	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
Ducted, 5 tons and up	54.5(50 is the typical model of its size class)DOE30U-60HFN1-Mwith ducted air handler DHG-60HWFN1-MW1 of 1 models have all five ratings · AHRI 206314613	No models in this size class
Non-ducted, up to 1.5 tons	71.6(50 is the typical model of its size class)DOX230-12HFN1-MV5Wwith ductless indoor unit DCA3U-12HRFN1-M(C)9 of 9 models have all five ratings · AHRI 214875728	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	66.3(50 is the typical model of its size class) (higher)DOD33-24HFN1-MT0Wwith ductless indoor unit DCD1-24HRFN1-MT0W(GA)2 of 2 models have all five ratings · AHRI 214875724	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	67.1(50 is the typical model of its size class) (higher)D3OJ-27HFN1-M4 of 5 models have all five ratings · AHRI 211911391	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	48.3(50 is the typical model of its size class) (higher)D5OG-48HFN1-M3 of 3 models have all five ratings · AHRI 211911397	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	DUOHOME	HAIER
COP at 5°F	beats 92% · 2.28DOX230-12HFN1-MV5WNon-ducted, up to 1.5 tons	beats 93% · 2.311U12EH2VHE*Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 73% · 59%DOE30U-60HFN1-MDucted, 5 tons and up	beats 97% · 120%1U09EH2VHE*Non-ducted, up to 1.5 tons
HSPF2	beats 98% · 11.2DOD33-24HFN1-MT0WDucted, 2 tons	beats 99% · 14.01U09EH2VHE*Non-ducted, up to 1.5 tons
SEER2	beats 98% · 21.0D3OJ-27HFN1-MDucted, 2.5–3 tons	beats 100% · 30.01U09EH2VHE*Non-ducted, up to 1.5 tons
EER2	beats 85% · 12.5DOD33-24HFN1-MT0WDucted, 2 tons	beats 97% · 16.01U09EH2VHE*Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 78% · 35,600 Btu/hDOE30U-60HFN1-MDucted, 5 tons and up	beats 94% · 18,500 Btu/h2U20EH2HD**Non-ducted, up to 1.5 tons

More comparisons

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DUOHOME vs HAIER heat pumps