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.

Rheem and York 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, York scores higher on 5 of the 6 ratings.

Rheem
York
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Rheem	York
Efficiency index	49%median — · 21st ranked	54%median — · 14th ranked
COP at 5°F	59%median 2.08 · 10th ranked	67%median 2.16 · 2nd ranked
Capacity retention at 5°F	48%median 66% · 18th ranked	51%median 70% · 14th ranked
HSPF2	43%median 7.5 · 23rd ranked	44%median 8.0 · 20th ranked
SEER2	42% (higher)median 15.2 · 23rd ranked	40% (higher)median 15.2 · 26th ranked
EER2	40%median 10.6 · 25th ranked	57%median 11.7 · 10th ranked
Heating capacity at 5°F	49%median 19,600 Btu/h · 18th ranked	53%median 20,000 Btu/h · 14th ranked
Outdoor models	341	229
AHRI certifications	25,744	94,251

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Rheem	York
CEE 2025 Tier 1 (Split ASHP)	35.5%121 models	52.8%121 models
CEE 2026 Tier 1 (Split ASHP)	33.7%115 models	52.8%121 models
CEE Advanced Tier (Split ASHP)	1.8%6 models	7.9%18 models
Xcel Energy Colorado cold-climate ASHP (2025)	33.7%115 models	38.9%89 models
DOE Cold Climate Heat Pump Challenge	1.8%6 models	7.9%18 models
ENERGY STAR Cold Climate	33.4%114 models	35.4%81 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

Rheem
York
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	Rheem	York
Ducted, up to 1.5 tons	33 · index 55%	22 · index 54%
Ducted, 2 tons	35 · index 42%	20 · index 49%
Ducted, 2.5–3 tons	90 · index 46%	59 · index 50%
Ducted, 3.5–4.5 tons	121 · index 49%	69 · index 49%
Ducted, 5 tons and up	31 · index 43%	13 · index 42%
Non-ducted, up to 1.5 tons	38 · index 58%	43 · index 62%
Non-ducted, 2 tons	9 · index 53%	16 · index 63%
Non-ducted, 2.5–3 tons	18 · index 54%	15 · index 53%
Non-ducted, 3.5–4.5 tons	12 · index 49%	5 · index 54%
Non-ducted, 5 tons and up	2 · index 43%	None

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	RheemCold-climate score, best model	YorkCold-climate score, best model
Ducted, up to 1.5 tons	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	80.4(50 is the typical model of its size class)YPAS18BLFASDQ1with ducted air handler YPPIMB18UFA1DQ9 of 20 models qualify · AHRI 218694255
Ducted, 2 tons	85.7(50 is the typical model of its size class)ML24HP230NEXH-Owith ducted air handler ML24HP230HSDUC-I16 of 34 models qualify · AHRI 215864380	90.2(50 is the typical model of its size class) (higher)HH824E2S11with ducted air handler D(A,C,E)36A4K+JMC12B2SN1+TDR12 of 22 models qualify · AHRI 218026253
Ducted, 2.5–3 tons	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	92.3(50 is the typical model of its size class)HH836E2S11with indoor coil D(A,C,E)36A4K+TDR and furnace Z9ET080C16SMPS122 of 61 models qualify · AHRI 218350129
Ducted, 3.5–4.5 tons	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	90.4(50 is the typical model of its size class)HH860E2S11with ducted air handler DM59A4K+JMC20D2SN1+TDR18 of 67 models qualify · AHRI 218026269
Ducted, 5 tons and up	77.3(50 is the typical model of its size class) (higher)SP17AY60AJVCwith indoor coil TCFY6024STANM and furnace S801V1255A24UHNAlso sold as RUUD RP17AY60AJVC2 of 32 models qualify · AHRI 218327534	63.4(50 is the typical model of its size class)PH9E60N00D212 of 13 models qualify · AHRI 218450295
Non-ducted, up to 1.5 tons	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	91.6(50 is the typical model of its size class)YPAS18BLFASDQ1with ductless indoor unit YPCIB18UFA1DQ36 of 43 models qualify · AHRI 218694256
Non-ducted, 2 tons	89.4(50 is the typical model of its size class)ML24HP230NEXH-Owith ductless indoor unit ML24HP230STDCAS-I8 of 8 models qualify · AHRI 215864372	96.3(50 is the typical model of its size class) (higher)YPAS24BLFASDQ1with ductless indoor unit YPCIB24UFA1DQ13 of 16 models qualify · AHRI 218694257
Non-ducted, 2.5–3 tons	89.4(50 is the typical model of its size class)ML36HP230LCMH-Owith ductless indoor unit ML36HP230FLO-I16 of 19 models qualify · AHRI 215864403	97.5(50 is the typical model of its size class) (higher)YPAS30BLFASDQ1with ductless indoor unit YPCIB30UFA1DQ11 of 15 models qualify · AHRI 218694248
Non-ducted, 3.5–4.5 tons	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	59.1(50 is the typical model of its size class)YPAS48BUFASDQ1with ductless indoor unit YPPFCB48UFA1DQ3 of 5 models qualify · AHRI 218696687
Non-ducted, 5 tons and up	None on this board (0 of 2 models qualify)	No models in this size class

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	RheemAll-around score, best model	YorkAll-around score, best model
Ducted, up to 1.5 tons	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	80.3(50 is the typical model of its size class)YPAS12BLFASDQ1with ducted air handler YPPIMB12UFA1DQ21 of 21 models have all five ratings · AHRI 218694251
Ducted, 2 tons	78.8(50 is the typical model of its size class) (higher)ML24HP230NEX-Owith ducted air handler ML24HP230HSDUC-I33 of 33 models have all five ratings · AHRI 215864360	77.6(50 is the typical model of its size class)HH824E2S11with ducted air handler D(A,C,E)36A4K+JME08B2SN1+TDR25 of 25 models have all five ratings · AHRI 218026254
Ducted, 2.5–3 tons	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	91.1(50 is the typical model of its size class)YPAS30BUFASDQ1with ducted air handler YPPIMB30UFA1DQ39 of 55 models have all five ratings · AHRI 218694240
Ducted, 3.5–4.5 tons	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	85.7(50 is the typical model of its size class)HH860E2S11with ducted air handler D(A,C,E)60B3K+JMC20D2SN1+TDR44 of 68 models have all five ratings · AHRI 218014963
Ducted, 5 tons and up	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	70.1(50 is the typical model of its size class)PH9E60N00D216 of 14 models have all five ratings · AHRI 218450295
Non-ducted, up to 1.5 tons	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	89.2(50 is the typical model of its size class)YRACXJ12WHAAwith ductless indoor unit YRAKXJ12PHAA43 of 43 models have all five ratings · AHRI 218037193
Non-ducted, 2 tons	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	84.5(50 is the typical model of its size class) (higher)YPAS24BLFASDQ1with ductless indoor unit YPCIB24UFA1DQ16 of 16 models have all five ratings · AHRI 218694257
Non-ducted, 2.5–3 tons	78.3(50 is the typical model of its size class)ML36HP230MULH-O*Also listed as ML36HP230MULH - O18 of 19 models have all five ratings · AHRI 216623571	85.0(50 is the typical model of its size class) (higher)YPAS30BUFASDQ1with ductless indoor unit YPCIB30UFA1DQ15 of 15 models have all five ratings · AHRI 218694244
Non-ducted, 3.5–4.5 tons	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	60.5(50 is the typical model of its size class)YPAS48BUFASDQ1with ductless indoor unit YPCIB48UFA1DQ5 of 5 models have all five ratings · AHRI 218694246
Non-ducted, 5 tons and up	58.6(50 is the typical model of its size class)ML55HP230MUL-O*2 of 2 models have all five ratings · AHRI 216623550	No models in this size class

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	Rheem	York
COP at 5°F	beats 100% · 3.05RP15AY24AJ2NDucted, up to 1.5 tons	beats 100% · 3.55UPC24CN23STG1Ducted, 2 tons
Capacity retention at 5°F	beats 100% · 150%ML06HP230CALH-ONon-ducted, up to 1.5 tons	beats 100% · 123%YRACXJ24WHBANon-ducted, 2 tons
HSPF2	beats 100% · 15.6ML06HP230CALH-ONon-ducted, up to 1.5 tons	beats 100% · 12.0YPAS30BUFASDQ1Non-ducted, 2.5–3 tons
SEER2	beats 100% · 35.0ML06HP230CALH-ONon-ducted, up to 1.5 tons	beats 100% · 22.0YH960E2C11Also sold as Coleman XH960E2C11Ducted, 3.5–4.5 tons
EER2	beats 99% · 17.4ML06HP230CALH-ONon-ducted, up to 1.5 tons	beats 99% · 14.4YPAS36BLFASDQ1Non-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 100% · 35,800 Btu/hRP15AY30AJ2NDucted, 2 tons	beats 100% · 23,000 Btu/hYRACXJ18WHAAAlso listed as YRACXJ18WHBANon-ducted, up to 1.5 tons

More comparisons

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Rheem vs York heat pumps