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COMFORTSTAR vs York heat pumps

Measured against models of the same size and duct type, York scores higher on 4 of the 6 ratings. COMFORTSTAR has 133 outdoor models, York has 229 outdoor models. COMFORTSTAR has no QMID on file and is not ranked.

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CompareData as of updated · sources

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.
COMFORTSTAR 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 4 of the 6 ratings.
  • COMFORTSTAR
  • York
  • Other ranked manufacturers
COMFORTS…York

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingCOMFORTSTARYork
Efficiency index50%median —54%median — · 14th ranked
COP at 5°F51%median 2.0067%median 2.16 · 2nd ranked
Capacity retention at 5°F48%median 71%51%median 70% · 14th ranked
HSPF254% (higher)median 8.744% (higher)median 8.0 · 20th ranked
SEER249% (higher)median 17.140% (higher)median 15.2 · 26th ranked
EER244%median 11.257%median 11.7 · 10th ranked
Heating capacity at 5°F52%median 20,600 Btu/h53%median 20,000 Btu/h · 14th ranked
Outdoor models133229
AHRI certifications46194,251

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCOMFORTSTARYork
CEE 2025 Tier 1 (Split ASHP)53.4%71 models52.8%121 models
CEE 2026 Tier 1 (Split ASHP)53.4%71 models52.8%121 models
CEE Advanced Tier (Split ASHP)1.5%2 models7.9%18 models
Xcel Energy Colorado cold-climate ASHP (2025)46.6%62 models38.9%89 models
DOE Cold Climate Heat Pump Challenge1.5%2 models7.9%18 models
ENERGY STAR Cold Climate30.1%40 models35.4%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
  • COMFORTSTAR
  • York
  • All models of the group
Ducted, up to 1.5 tons1.901,783 modelsDucted, 2 tons2.001,090 modelsDucted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsDucted, 5 tons and up2.00321 modelsNon-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 modelsNon-ducted, 2.5–3 tons2.001,106 modelsNon-ducted, 3.5–4.5 tons2.00564 modelsNon-ducted, 5 tons and up2.0585 modelsmedian

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

Source: AHRI Directory · as of

Models per peer group · efficiency index within the group
Size and duct typeCOMFORTSTARYork
Ducted, up to 1.5 tons17 · index 67%22 · index 54%
Ducted, 2 tons17 · index 48%20 · index 49%
Ducted, 2.5–3 tons31 · index 49%59 · index 50%
Ducted, 3.5–4.5 tons36 · index 49%69 · index 49%
Ducted, 5 tons and up2 · index 64%13 · index 42%
Non-ducted, up to 1.5 tons25 · index 56%43 · index 62%
Non-ducted, 2 tons7 · index 46%16 · index 63%
Non-ducted, 2.5–3 tons18 · index 44%15 · index 53%
Non-ducted, 3.5–4.5 tons11 · index 39%5 · index 54%
Non-ducted, 5 tons and up1 · index 27%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 typeCOMFORTSTARCold-climate score, best modelYorkCold-climate score, best model
Ducted, up to 1.5 tons93.5(50 is the typical model of its size class) (higher)CHF3-06CD(O)with ducted air handler CPA3-06CD(I)13 of 17 models qualify · AHRI 21713837580.4(50 is the typical model of its size class)YPAS18BLFASDQ1with ducted air handler YPPIMB18UFA1DQ9 of 20 models qualify · AHRI 218694255
Ducted, 2 tons77.4(50 is the typical model of its size class)CHF3-24CD(O)with ducted air handler AHU3-24M12 of 17 models qualify · AHRI 21713836190.2(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 tons83.2(50 is the typical model of its size class)CHF3-36DU(O)with ducted air handler CPA3H-36DU(I)12 of 31 models qualify · AHRI 21713838792.3(50 is the typical model of its size class) (higher)HH836E2S11with indoor coil D(A,C,E)36A4K+TDR and furnace Z9ET080C16SMPS122 of 61 models qualify · AHRI 218350129
Ducted, 3.5–4.5 tons82.7(50 is the typical model of its size class)CVH3-48-6SH16 of 36 models qualify · AHRI 21672091990.3(50 is the typical model of its size class) (higher)HH860E2S11with ducted air handler DM59A4K+JMC20D2SN1+TDR18 of 67 models qualify · AHRI 218026269
Ducted, 5 tons and upNone on this board (0 of 2 models qualify)63.4(50 is the typical model of its size class)PH9E60N00D212 of 13 models qualify · AHRI 218450295
Non-ducted, up to 1.5 tons94.4(50 is the typical model of its size class) (higher)CHF3-06CD(O)with ductless indoor unit T1W3-06CD(I)17 of 25 models qualify · AHRI 21713838391.6(50 is the typical model of its size class)YPAS18BLFASDQ1with ductless indoor unit YPCIB18UFA1DQ36 of 43 models qualify · AHRI 218694256
Non-ducted, 2 tons89.4(50 is the typical model of its size class)CHF3-24CD(O)with ductless indoor unit TIP3-24CD(I)4 of 7 models qualify · AHRI 21713837496.3(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 tons89.4(50 is the typical model of its size class)CHF3-36DU(O)with ductless indoor unit FPA3-36DU(I)14 of 18 models qualify · AHRI 21713838497.5(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 tons69.9(50 is the typical model of its size class) (higher)CVH3-60-6SH9 of 11 models qualify · AHRI 21672092359.1(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 upNone on this board (0 of 1 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 typeCOMFORTSTARAll-around score, best modelYorkAll-around score, best model
Ducted, up to 1.5 tons95.0(50 is the typical model of its size class) (higher)CHF3-06CD(O)with ducted air handler CPA3-06CD(I)15 of 17 models have all five ratings · AHRI 21713837580.3(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 tons78.8(50 is the typical model of its size class) (higher)CPP3-24CD(O)with ducted air handler CPA3H-24CD(I)15 of 17 models have all five ratings · AHRI 21672090277.6(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 tons83.6(50 is the typical model of its size class)CVH3-36-5SH27 of 31 models have all five ratings · AHRI 21672091691.1(50 is the typical model of its size class) (higher)YPAS30BUFASDQ1with ducted air handler YPPIMB30UFA1DQ39 of 55 models have all five ratings · AHRI 218694240
Ducted, 3.5–4.5 tons85.1(50 is the typical model of its size class)CMZ3-55-6Z32 of 36 models have all five ratings · AHRI 21672093485.7(50 is the typical model of its size class) (higher)HH860E2S11with ducted air handler D(A,C,E)60B3K+JMC20D2SN1+TDR44 of 68 models have all five ratings · AHRI 218014963
Ducted, 5 tons and up65.3(50 is the typical model of its size class)CPP3-60DU(O)with ducted air handler CPA3H-60DU(I)2 of 2 models have all five ratings · AHRI 21672090570.1(50 is the typical model of its size class) (higher)PH9E60N00D216 of 14 models have all five ratings · AHRI 218450295
Non-ducted, up to 1.5 tons93.8(50 is the typical model of its size class) (higher)CHF3-06CD(O)with ductless indoor unit CPP3-06CD(I)22 of 25 models have all five ratings · AHRI 21713836889.2(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 tons74.3(50 is the typical model of its size class)CPP3-24CD(O)with ductless indoor unit CPP3-24CD(I)6 of 7 models have all five ratings · AHRI 21672088784.5(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 tons66.3(50 is the typical model of its size class)CVH3-36-5SH17 of 18 models have all five ratings · AHRI 21672091585.0(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 tons62.6(50 is the typical model of its size class) (higher)CVH3-60-6SH11 of 11 models have all five ratings · AHRI 21672092160.5(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 up32.5(50 is the typical model of its size class)CMZ3-62-6Z1 of 1 models have all five ratings · AHRI 216720936No 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
RatingCOMFORTSTARYork
COP at 5°Fbeats 98% · 2.47CPP3-12CD(O)Non-ducted, up to 1.5 tonsbeats 100% · 3.55UPC24CN23STG1Ducted, 2 tons
Capacity retention at 5°Fbeats 99% · 115%CHH32-36Ducted, 2.5–3 tonsbeats 100% · 123%YRACXJ24WHBANon-ducted, 2 tons
HSPF2beats 99% · 11.0CVH3-48-6SHDucted, 3.5–4.5 tonsbeats 100% · 12.0YPAS30BUFASDQ1Non-ducted, 2.5–3 tons
SEER2beats 97% · 22.0C32-MZ-2Ducted, up to 1.5 tonsbeats 100% · 22.0YH960E2C11Also sold as Coleman XH960E2C11Ducted, 3.5–4.5 tons
EER2beats 99% · 14.4CHF3-06CD(O)Ducted, up to 1.5 tonsbeats 99% · 14.4YPAS36BLFASDQ1Non-ducted, 2.5–3 tons
Heating capacity at 5°Fbeats 100% · 42,500 Btu/hCHH32-36Ducted, 2.5–3 tonsbeats 100% · 23,000 Btu/hYRACXJ18WHAAAlso listed as YRACXJ18WHBANon-ducted, up to 1.5 tons

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