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.

Cooper&Hunter and HITACHI 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, Cooper&Hunter scores higher on 4 of the 6 ratings.

Cooper&Hunter
HITACHI
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Cooper&Hunter	HITACHI
Efficiency index	64%median — · 1st ranked	68%median —
COP at 5°F	65%median 2.10 · 3rd ranked	66%median 2.13
Capacity retention at 5°F	62% (higher)median 80% · 5th ranked	60% (higher)median 79%
HSPF2	73% (higher)median 10.2 · 1st ranked	70% (higher)median 10.0
SEER2	65% (higher)median 21.0 · 2nd ranked	63% (higher)median 21.8
EER2	58%median 12.0 · 9th ranked	75%median 13.0
Heating capacity at 5°F	65% (higher)median 24,000 Btu/h · 5th ranked	64% (higher)median 18,500 Btu/h
Outdoor models	63	63
AHRI certifications	260	164

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Cooper&Hunter	HITACHI
CEE 2025 Tier 1 (Split ASHP)	85.7%54 models	95.2%60 models
CEE 2026 Tier 1 (Split ASHP)	84.1%53 models	95.2%60 models
CEE Advanced Tier (Split ASHP)	7.9%5 models	17.5%11 models
Xcel Energy Colorado cold-climate ASHP (2025)	73%46 models	82.5%52 models
DOE Cold Climate Heat Pump Challenge	7.9%5 models	17.5%11 models
ENERGY STAR Cold Climate	71.4%45 models	79.4%50 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 · 9 groups where both have models

Cooper&Hunter
HITACHI
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	Cooper&Hunter	HITACHI
Ducted, up to 1.5 tons	12 · index 74%	10 · index 70%
Ducted, 2 tons	6 · index 62%	6 · index 71%
Ducted, 2.5–3 tons	15 · index 67%	11 · index 74%
Ducted, 3.5–4.5 tons	14 · index 67%	6 · index 70%
Ducted, 5 tons and up	3 · index 66%	None
Non-ducted, up to 1.5 tons	20 · index 65%	33 · index 70%
Non-ducted, 2 tons	4 · index 60%	12 · index 67%
Non-ducted, 2.5–3 tons	13 · index 62%	12 · index 58%
Non-ducted, 3.5–4.5 tons	11 · index 50%	5 · index 58%
Non-ducted, 5 tons and up	2 · index 71%	1 · index 54%

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	Cooper&HunterCold-climate score, best model	HITACHICold-climate score, best model
Ducted, up to 1.5 tons	93.5(50 is the typical model of its size class) (higher)CH-RHP06F9-230VOwith ducted air handler CH-RS06MDT-MS11 of 12 models qualify · AHRI 215864212	79.3(50 is the typical model of its size class)PAS-12BLFASDQ1with ducted air handler PPIM-B12UFA1DQ8 of 10 models qualify · AHRI 215359321
Ducted, 2 tons	85.7(50 is the typical model of its size class) (higher)CH-RHP24-230VOwith ducted air handler CH-RS24MDT-HS6 of 6 models qualify · AHRI 215864219	75.5(50 is the typical model of its size class)PAS-24BLFASDQ1with ducted air handler PPIM-B24UFA1DQ6 of 6 models qualify · AHRI 215222823
Ducted, 2.5–3 tons	84.7(50 is the typical model of its size class) (higher)CHV6-RS36URBMHH12 of 15 models qualify · AHRI 217026552	83.7(50 is the typical model of its size class)PAS-30BLFASDQ1with ducted air handler PPIM-B30UFA1DQ9 of 11 models qualify · AHRI 215222843
Ducted, 3.5–4.5 tons	82.7(50 is the typical model of its size class) (higher)CH-RVHP48M-230VOAlso sold as C&H CH-RHP48M-230VO14 of 14 models qualify · AHRI 215864279	72.7(50 is the typical model of its size class)PAS-48BUFASDQ1with ducted air handler PPIM-B48UFA1DQ2 of 6 models qualify · AHRI 213685842
Ducted, 5 tons and up	88.2(50 is the typical model of its size class)CHV6-RS60URBMHH1 of 3 models qualify · AHRI 217026558	No models in this size class
Non-ducted, up to 1.5 tons	96.7(50 is the typical model of its size class) (higher)CH-RHP06F9-230VOwith ductless indoor unit CH-PRO06MASTWM-230VI14 of 20 models qualify · AHRI 215864172	91.6(50 is the typical model of its size class)PAS-18BLFASDQ1with ductless indoor unit PCI-B18UFA1DQ29 of 33 models qualify · AHRI 215222824
Non-ducted, 2 tons	89.4(50 is the typical model of its size class)CH-RHP24-230VOwith ductless indoor unit CH-RSH24MCT4 of 4 models qualify · AHRI 215864191	93.8(50 is the typical model of its size class) (higher)PAS-24BLFASDQ1with ductless indoor unit PCI-B24UFA1DQ12 of 12 models qualify · AHRI 215222825
Non-ducted, 2.5–3 tons	92.7(50 is the typical model of its size class)CHV6-RS36URBMHH11 of 13 models qualify · AHRI 217026553	97.4(50 is the typical model of its size class) (higher)PAS-30BLFASDQ1with ductless indoor unit PCI-B30UFA1DQ9 of 12 models qualify · AHRI 215222826
Non-ducted, 3.5–4.5 tons	94.6(50 is the typical model of its size class) (higher)CHV6-RS48URBMHH9 of 11 models qualify · AHRI 217026556	59.0(50 is the typical model of its size class)PAS-48BUFASDQ1with ductless indoor unit PCI-B48UFA1DQ2 of 5 models qualify · AHRI 214723262
Non-ducted, 5 tons and up	98.2(50 is the typical model of its size class)CHV6-RS60URBMHH1 of 2 models qualify · AHRI 217026559	None on this board (0 of 1 models qualify)

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	Cooper&HunterAll-around score, best model	HITACHIAll-around score, best model
Ducted, up to 1.5 tons	95.0(50 is the typical model of its size class) (higher)CH-RHP06F9-230VOwith ducted air handler CH-RS06MDT-MS12 of 12 models have all five ratings · AHRI 215864212	85.9(50 is the typical model of its size class)PAS-12BLFASDQ1with ducted air handler PPIM-B12UFA1DQ10 of 10 models have all five ratings · AHRI 215359321
Ducted, 2 tons	78.8(50 is the typical model of its size class)CH-RES24-230VOwith ducted air handler CH-RS24MDT-HS6 of 6 models have all five ratings · AHRI 215864228	80.3(50 is the typical model of its size class) (higher)PAS-24BUFASDQ1-LACwith ducted air handler PPIM-B24UFA1DQ6 of 6 models have all five ratings · AHRI 217450753
Ducted, 2.5–3 tons	83.6(50 is the typical model of its size class)CH-RVHP36M-230VOAlso sold as C&H CH-RHP36M-230VO15 of 15 models have all five ratings · AHRI 215864276	90.1(50 is the typical model of its size class) (higher)PAS-36BLFASDQ1with ducted air handler PPIM-B36UFA1DQ11 of 11 models have all five ratings · AHRI 215222841
Ducted, 3.5–4.5 tons	85.1(50 is the typical model of its size class)CH-R48MES-230VO14 of 14 models have all five ratings · AHRI 215864264	85.7(50 is the typical model of its size class) (higher)PAS-48BUFASDQ1with ducted air handler PPIM-B48UFA1DQ6 of 6 models have all five ratings · AHRI 213685842
Ducted, 5 tons and up	70.5(50 is the typical model of its size class)CHV6-RS60URBMHH3 of 3 models have all five ratings · AHRI 217026558	No models in this size class
Non-ducted, up to 1.5 tons	96.2(50 is the typical model of its size class) (higher)CH-RHP06F9-230VOwith ductless indoor unit CH-PRO06MASTWM-230VI20 of 20 models have all five ratings · AHRI 215864172	90.5(50 is the typical model of its size class)PAS-12BLFASDQ1with ductless indoor unit PCIM-B12UFA1DQ31 of 33 models have all five ratings · AHRI 215359322
Non-ducted, 2 tons	86.8(50 is the typical model of its size class) (higher)CH-RES24-230VOwith ductless indoor unit CH-PRO24MASTWM-230VI4 of 4 models have all five ratings · AHRI 215864171	81.6(50 is the typical model of its size class)PAS-24BUFASDQ1-LACwith ductless indoor unit PCI-B24UFA1DQ12 of 12 models have all five ratings · AHRI 217450777
Non-ducted, 2.5–3 tons	86.7(50 is the typical model of its size class)CHV6-RS36URBMHH13 of 13 models have all five ratings · AHRI 217026553	93.9(50 is the typical model of its size class) (higher)PAS-36BLFASDQ1with ductless indoor unit PCI-B36UFA1DQ12 of 12 models have all five ratings · AHRI 215222842
Non-ducted, 3.5–4.5 tons	82.7(50 is the typical model of its size class) (higher)CHV6-RS48URBMHH11 of 11 models have all five ratings · AHRI 217026556	73.8(50 is the typical model of its size class)PAS-48BUFASDQ1with ductless indoor unit PCI-B48UFA1DQ5 of 5 models have all five ratings · AHRI 214723262
Non-ducted, 5 tons and up	83.5(50 is the typical model of its size class) (higher)CHV6-RS60URBMHH2 of 2 models have all five ratings · AHRI 217026559	54.1(50 is the typical model of its size class)HVAHP060C23S*1 of 1 models have all five ratings · AHRI 217036518

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	Cooper&Hunter	HITACHI
COP at 5°F	beats 99% · 2.40CHV6-RS48URBMHHNon-ducted, 3.5–4.5 tons	beats 100% · 2.50PAS-30BUFASDQ1Non-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 100% · 100%CHV6-RS60URBMHHDucted, 5 tons and up	beats 100% · 123%RAC-XJ24WHBANon-ducted, 2 tons
HSPF2	beats 99% · 14.8CH-RHP06F9-230VONon-ducted, up to 1.5 tons	beats 98% · 11.0RAM-X36N4HAADucted, 2.5–3 tons
SEER2	beats 97% · 25.0CH-R28MES-230VONon-ducted, 2.5–3 tons	beats 100% · 24.2HVAHP048C23S*Non-ducted, 3.5–4.5 tons
EER2	beats 99% · 18.0CH-RHP06F9-230VONon-ducted, up to 1.5 tons	beats 100% · 16.8HVAHP036C23S*Non-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 100% · 63,000 Btu/hCHV6-RS60URBMHHDucted, 5 tons and up	beats 100% · 23,000 Btu/hRAC-XJ18WHAAAlso listed as RAC-XJ18WHBANon-ducted, up to 1.5 tons

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Cooper&Hunter vs HITACHI heat pumps