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.

Daikin and Rheem 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, Rheem scores higher on 3 of the 6 ratings.

Daikin
Rheem
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Daikin	Rheem
Efficiency index	50% (higher)median — · 19th ranked	49% (higher)median — · 21st ranked
COP at 5°F	46%median 1.94 · 20th ranked	59%median 2.08 · 10th ranked
Capacity retention at 5°F	48%median 68% · 20th ranked	48%median 66% · 18th ranked
HSPF2	38%median 7.8 · 26th ranked	43%median 7.5 · 23rd ranked
SEER2	45% (higher)median 16.6 · 20th ranked	42% (higher)median 15.2 · 23rd ranked
EER2	54% (higher)median 11.7 · 13th ranked	40% (higher)median 10.6 · 25th ranked
Heating capacity at 5°F	47%median 23,200 Btu/h · 20th ranked	49%median 19,600 Btu/h · 18th ranked
Outdoor models	394	341
AHRI certifications	21,282	25,744

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Daikin	Rheem
CEE 2025 Tier 1 (Split ASHP)	38.1%150 models	35.5%121 models
CEE 2026 Tier 1 (Split ASHP)	34.8%137 models	33.7%115 models
CEE Advanced Tier (Split ASHP)	1.8%7 models	1.8%6 models
Xcel Energy Colorado cold-climate ASHP (2025)	29.7%117 models	33.7%115 models
DOE Cold Climate Heat Pump Challenge	1.8%7 models	1.8%6 models
ENERGY STAR Cold Climate	17.3%68 models	33.4%114 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 · 10 groups where both have models

Daikin
Rheem
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	Daikin	Rheem
Ducted, up to 1.5 tons	30 · index 36%	33 · index 55%
Ducted, 2 tons	47 · index 44%	35 · index 42%
Ducted, 2.5–3 tons	105 · index 52%	90 · index 46%
Ducted, 3.5–4.5 tons	152 · index 57%	121 · index 49%
Ducted, 5 tons and up	16 · index 50%	31 · index 43%
Non-ducted, up to 1.5 tons	43 · index 46%	38 · index 58%
Non-ducted, 2 tons	13 · index 49%	9 · index 53%
Non-ducted, 2.5–3 tons	8 · index 51%	18 · index 54%
Non-ducted, 3.5–4.5 tons	7 · index 33%	12 · index 49%
Non-ducted, 5 tons and up	1 · index 48%	2 · index 43%

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	DaikinCold-climate score, best model	RheemCold-climate score, best model
Ducted, up to 1.5 tons	62.5(50 is the typical model of its size class)RZA18AAVJUwith ducted air handler FTA18AVJU11 of 30 models qualify · AHRI 217175214	93.5(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ducted air handler ML06HP230LSDUC-I20 of 33 models qualify · AHRI 215864373
Ducted, 2 tons	89.2(50 is the typical model of its size class) (higher)DH9VSA241CAwith ducted air handler CAHEA3630C3A+MBVK16CH*X00AAlso sold as Amana AZV9SA241CA, Goodman GZV9SA241CA12 of 47 models qualify · AHRI 216699791	85.7(50 is the typical model of its size class)ML24HP230NEXH-Owith ducted air handler ML24HP230HSDUC-I16 of 34 models qualify · AHRI 215864380
Ducted, 2.5–3 tons	88.5(50 is the typical model of its size class)DH9VSA361CAwith ducted air handler CAHEA3630C3A+MBVK16CH*X00AAlso sold as Amana AZV9SA361CA, Goodman GZV9SA361CA36 of 105 models qualify · AHRI 216699792	94.4(50 is the typical model of its size class) (higher)RD18AY36AJVCwith ducted air handler L(E,G)M36FJ28 of 90 models qualify · AHRI 218029736
Ducted, 3.5–4.5 tons	72.1(50 is the typical model of its size class)RZA42AAVJUwith ducted air handler FBA42AVJU49 of 152 models qualify · AHRI 217175223	95.2(50 is the typical model of its size class) (higher)RD18AY48AJVCwith indoor coil D(A,C,E)60B4J+TDR and furnace R801V0754A17DZ33 of 121 models qualify · AHRI 218827549
Ducted, 5 tons and up	77.3(50 is the typical model of its size class)RXTA60AAVJU*1 of 16 models qualify · AHRI 217178417	77.3(50 is the typical model of its size class)SP17AY60AJVCwith indoor coil TCFY6024STANM and furnace S801V1255A24UHNAlso sold as RUUD RP17AY60AJVC2 of 32 models qualify · AHRI 218327534
Non-ducted, up to 1.5 tons	80.0(50 is the typical model of its size class)RXM09WVJU*with ductless indoor unit FTXM09WVJU34 of 43 models qualify · AHRI 212494257	94.4(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ductless indoor unit ML06HP2301WYCAS-I29 of 38 models qualify · AHRI 215864386
Non-ducted, 2 tons	76.2(50 is the typical model of its size class)RXTA24AAVJU*10 of 13 models qualify · AHRI 217178408	89.4(50 is the typical model of its size class) (higher)ML24HP230NEXH-Owith ductless indoor unit ML24HP230STDCAS-I8 of 8 models qualify · AHRI 215864372
Non-ducted, 2.5–3 tons	66.9(50 is the typical model of its size class)RXLA36AAVJU*8 of 8 models qualify · AHRI 217178412	89.4(50 is the typical model of its size class) (higher)ML36HP230LCMH-Owith ductless indoor unit ML36HP230FLO-I16 of 19 models qualify · AHRI 215864403
Non-ducted, 3.5–4.5 tons	46.9(50 is the typical model of its size class)RXLA48AAVJU*7 of 7 models qualify · AHRI 217178413	73.4(50 is the typical model of its size class) (higher)ML48HP230MULH-O*Also listed as ML48HP230MULH - O11 of 12 models qualify · AHRI 216623576
Non-ducted, 5 tons and up	70.2(50 is the typical model of its size class)RXTA60AAVJU*1 of 1 models qualify · AHRI 217178411	None on this board (0 of 2 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	DaikinAll-around score, best model	RheemAll-around score, best model
Ducted, up to 1.5 tons	65.5(50 is the typical model of its size class)RZA18AAVJUwith ducted air handler FBA18AVJU27 of 27 models have all five ratings · AHRI 217175219	95.0(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ducted air handler ML06HP230LSDUC-I32 of 32 models have all five ratings · AHRI 215864373
Ducted, 2 tons	87.6(50 is the typical model of its size class) (higher)DH9VSA241CAwith ducted air handler CAHEA3630C3A+MBVK16CH*X00AAlso sold as Amana AZV9SA241CA, Goodman GZV9SA241CA30 of 42 models have all five ratings · AHRI 216699791	78.8(50 is the typical model of its size class)ML24HP230NEX-Owith ducted air handler ML24HP230HSDUC-I33 of 33 models have all five ratings · AHRI 215864360
Ducted, 2.5–3 tons	89.0(50 is the typical model of its size class)DH9VSA361CAwith ducted air handler CAHEA3630C3A+MBVK16CH*X00AAlso sold as Amana AZV9SA361CA, Goodman GZV9SA361CA76 of 107 models have all five ratings · AHRI 216699792	92.7(50 is the typical model of its size class) (higher)RD18AY36AJVCwith ducted air handler L(E,G)M36FJ65 of 91 models have all five ratings · AHRI 218029736
Ducted, 3.5–4.5 tons	79.2(50 is the typical model of its size class)DPSH04BAPB2**E350Also listed as DPSH04BAPB3*E350, DPSH04BAPB4**E350, DPSH04BAPB5**E350118 of 153 models have all five ratings · AHRI 216030296	86.3(50 is the typical model of its size class) (higher)RD18AY48AJVCwith ducted air handler L(E,G)M60IJ66 of 116 models have all five ratings · AHRI 218029742
Ducted, 5 tons and up	62.7(50 is the typical model of its size class)DH7TCA6010A*with ducted air handler DMVT60DP1300AAlso sold as Goodman GLZT7CA6010A, Amana ALZT7CA6010A18 of 21 models have all five ratings · AHRI 215657382	70.4(50 is the typical model of its size class) (higher)RP17AY60AJVCwith ducted air handler RH2TY6024STANNAlso sold as SURE SP17AY60AJVC22 of 38 models have all five ratings · AHRI 218160613
Non-ducted, up to 1.5 tons	88.2(50 is the typical model of its size class)RXM09WVJU*with ductless indoor unit FTXM09WVJU43 of 43 models have all five ratings · AHRI 212494257	93.8(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ductless indoor unit ML06HP230NEX-I37 of 38 models have all five ratings · AHRI 215864338
Non-ducted, 2 tons	85.2(50 is the typical model of its size class) (higher)RXTA24AAVJU*13 of 13 models have all five ratings · AHRI 217178408	76.4(50 is the typical model of its size class)ML24HP230CALH-Owith ductless indoor unit ML24HP230CALH-I8 of 8 models have all five ratings · AHRI 215864348
Non-ducted, 2.5–3 tons	76.6(50 is the typical model of its size class)RXLA36AAVJU*8 of 8 models have all five ratings · AHRI 217178412	78.3(50 is the typical model of its size class) (higher)ML36HP230MULH-O*Also listed as ML36HP230MULH - O18 of 19 models have all five ratings · AHRI 216623571
Non-ducted, 3.5–4.5 tons	48.2(50 is the typical model of its size class)RXLA48AAVJU*7 of 7 models have all five ratings · AHRI 217178413	75.6(50 is the typical model of its size class) (higher)ML48HP230MULH-O*Also listed as ML48HP230MULH - O12 of 12 models have all five ratings · AHRI 216623574
Non-ducted, 5 tons and up	48.2(50 is the typical model of its size class)RXTA60AAVJU*1 of 1 models have all five ratings · AHRI 217178411	58.6(50 is the typical model of its size class) (higher)ML55HP230MUL-O*2 of 2 models have all five ratings · AHRI 216623550

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	Daikin	Rheem
COP at 5°F	beats 100% · 2.50RXTA36AAVJU*Non-ducted, 2.5–3 tons	beats 100% · 3.05RP15AY24AJ2NDucted, up to 1.5 tons
Capacity retention at 5°F	beats 99% · 109%RZA30AAVJU*Non-ducted, 2.5–3 tons	beats 100% · 150%ML06HP230CALH-ONon-ducted, up to 1.5 tons
HSPF2	beats 87% · 11.2RXM09WVJU*Non-ducted, up to 1.5 tons	beats 100% · 15.6ML06HP230CALH-ONon-ducted, up to 1.5 tons
SEER2	beats 98% · 21.0DH9VSA361CA*Also sold as Amana AZV9SA361CA, Goodman GZV9SA361CADucted, 2.5–3 tons	beats 100% · 35.0ML06HP230CALH-ONon-ducted, up to 1.5 tons
EER2	beats 99% · 14.8RXTA24AAVJU*Non-ducted, 2 tons	beats 99% · 17.4ML06HP230CALH-ONon-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 99% · 21,600 Btu/hRXM18WVJU*Non-ducted, up to 1.5 tons	beats 100% · 35,800 Btu/hRP15AY30AJ2NDucted, 2 tons

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Daikin vs Rheem heat pumps