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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 117 outdoor models, York has 179 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 index48%median —51%median — · 21st ranked
COP at 5°F46%median 1.8869%median 2.20 · 5th ranked
Capacity retention at 5°F44%median 63%50%median 69% · 18th ranked
HSPF249% (higher)median 8.737% (higher)median 7.7 · 23rd ranked
SEER244% (higher)median 17.038% (higher)median 15.2 · 24th ranked
EER244%median 11.057%median 11.0 · 9th ranked
Heating capacity at 5°F46%median 17,600 Btu/h49%median 24,200 Btu/h · 17th ranked
Outdoor models117179
AHRI certifications30265,299

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCOMFORTSTARYork
CEE 2025 Tier 1 (Split ASHP)36.8%43 models26.3%47 models
CEE 2026 Tier 1 (Split ASHP)35.9%42 models26.3%47 models
CEE Advanced Tier (Split ASHP)0.9%1 models0.6%1 models
Xcel Energy Colorado cold-climate ASHP (2025)23.9%28 models25.7%46 models
DOE Cold Climate Heat Pump Challenge0.9%1 models0.6%1 models
ENERGY STAR Cold Climate22.2%26 models2.2%4 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 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsDucted, 5 tons and up1.90239 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsNon-ducted, 3.5–4.5 tons1.97438 modelsNon-ducted, 5 tons and up2.1032 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 tons12 · index 62%8 · index 42%
Ducted, 2 tons10 · index 48%17 · index 47%
Ducted, 2.5–3 tons24 · index 44%53 · index 51%
Ducted, 3.5–4.5 tons22 · index 47%71 · index 60%
Ducted, 5 tons and up5 · index 42%19 · index 50%
Non-ducted, up to 1.5 tons33 · index 47%9 · index 25%
Non-ducted, 2 tons8 · index 42%2 · index 41%
Non-ducted, 2.5–3 tons20 · index 46%6 · index 54%
Non-ducted, 3.5–4.5 tons8 · index 54%5 · index 46%
Non-ducted, 5 tons and upNone2 · index 46%

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 tons74.9(50 is the typical model of its size class) (higher)CHF09CD(O)with ducted air handler CPA-09C8 of 12 models qualify · AHRI 20765893759.7(50 is the typical model of its size class)THF2B18S21with ducted air handler AE(D,N,U)+CM24D24+TDR7 of 8 models qualify · AHRI 214606310
Ducted, 2 tons80.3(50 is the typical model of its size class) (higher)CZP24CD(O)with ducted air handler CPA-24B4 of 10 models qualify · AHRI 20765893360.6(50 is the typical model of its size class)THE2B24T21with ducted air handler AX242BTA10 of 16 models qualify · AHRI 211634285
Ducted, 2.5–3 tons79.9(50 is the typical model of its size class)CHF36CD(O)with ducted air handler CPA-36C6 of 24 models qualify · AHRI 20765894183.8(50 is the typical model of its size class) (higher)HMH72B341with indoor coil CM36B36+TDR and furnace TM9V120D20MP1222 of 53 models qualify · AHRI 211628039
Ducted, 3.5–4.5 tons86.4(50 is the typical model of its size class) (higher)CXH048CD(O)-DUwith ducted air handler CPA-48DUBAlso listed as CHF48CD(O)6 of 22 models qualify · AHRI 20515044177.7(50 is the typical model of its size class)RHP15048B21with ducted air handler L(E,G)M60A4Also sold as Champion Heating and Cooling THF2B48T2124 of 72 models qualify · AHRI 213612208
Ducted, 5 tons and up70.2(50 is the typical model of its size class)CCRT60-1-INV1 of 5 models qualify · AHRI 21260183270.2(50 is the typical model of its size class)YMKE60BNJMFMO-X1 of 19 models qualify · AHRI 205739196
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class) (higher)CZP09CD(O)with ductless indoor unit CHF09CD(I)11 of 33 models qualify · AHRI 20765892264.2(50 is the typical model of its size class)DHS18CMB22S5 of 9 models qualify · AHRI 207616532
Non-ducted, 2 tons86.1(50 is the typical model of its size class) (higher)CHF24CD(O)with ductless indoor unit TIP-242 of 8 models qualify · AHRI 20765895266.1(50 is the typical model of its size class)DHS24CMB22S1 of 2 models qualify · AHRI 207616534
Non-ducted, 2.5–3 tons79.3(50 is the typical model of its size class) (higher)CVH-36-4SH3 of 20 models qualify · AHRI 20765898260.8(50 is the typical model of its size class)YVAHP036B21S*Also sold as Coleman CVAHP036B21S5 of 6 models qualify · AHRI 203994967
Non-ducted, 3.5–4.5 tons76.2(50 is the typical model of its size class) (higher)CVH-48-5SH4 of 8 models qualify · AHRI 20765898431.6(50 is the typical model of its size class)DHS42CMB22S1 of 5 models qualify · AHRI 207616540
Non-ducted, 5 tons and upNo models in this size classNone 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 typeCOMFORTSTARAll-around score, best modelYorkAll-around score, best model
Ducted, up to 1.5 tons85.2(50 is the typical model of its size class) (higher)CHF09CD(O)with ducted air handler CPA-09C10 of 12 models have all five ratings · AHRI 20765893757.1(50 is the typical model of its size class)YH2F18SB21with ducted air handler AE*S+CM24C24+TDR7 of 7 models have all five ratings · AHRI 216437405
Ducted, 2 tons83.8(50 is the typical model of its size class) (higher)CZP24CD(O)with ducted air handler CPA-24B6 of 10 models have all five ratings · AHRI 20765893377.1(50 is the typical model of its size class)YMSJYH024BAAND-1with ducted air handler YMSJXH024BAAN--517 of 17 models have all five ratings · AHRI 217734524
Ducted, 2.5–3 tons75.4(50 is the typical model of its size class)CMZ-27-3Z16 of 24 models have all five ratings · AHRI 20765896876.1(50 is the typical model of its size class) (higher)YMSJYH048BAAND-1with ducted air handler YMSJXH048BAAN--534 of 51 models have all five ratings · AHRI 217734526
Ducted, 3.5–4.5 tons82.0(50 is the typical model of its size class)CVH-48-5SH12 of 22 models have all five ratings · AHRI 20765898583.7(50 is the typical model of its size class) (higher)YZV48B21with indoor coil XAMC48HE3N1+CC and furnace TM9V100C16MP1248 of 73 models have all five ratings · AHRI 211207031
Ducted, 5 tons and up75.1(50 is the typical model of its size class)CCRT60-1-INV5 of 5 models have all five ratings · AHRI 21260183275.1(50 is the typical model of its size class)YMKE60BNJMFMO-X12 of 20 models have all five ratings · AHRI 205739196
Non-ducted, up to 1.5 tons88.4(50 is the typical model of its size class) (higher)CZP09CD(O)with ductless indoor unit CHF09CD(I)30 of 33 models have all five ratings · AHRI 20765892250.6(50 is the typical model of its size class)DHS18CMB22S9 of 9 models have all five ratings · AHRI 207616532
Non-ducted, 2 tons84.3(50 is the typical model of its size class) (higher)CHF24CD(O)with ductless indoor unit CHF24CD(I)7 of 8 models have all five ratings · AHRI 20765892955.4(50 is the typical model of its size class)DHS24CMB22S2 of 2 models have all five ratings · AHRI 207616534
Non-ducted, 2.5–3 tons82.8(50 is the typical model of its size class) (higher)CVH-36-4SH17 of 20 models have all five ratings · AHRI 20765898274.6(50 is the typical model of its size class)YVAHP036B21S*Also sold as Coleman CVAHP036B21S5 of 6 models have all five ratings · AHRI 203994967
Non-ducted, 3.5–4.5 tons77.9(50 is the typical model of its size class) (higher)CVH-48-5SH5 of 8 models have all five ratings · AHRI 20765898467.0(50 is the typical model of its size class)YVAHP048B21S*Also sold as Coleman CVAHP048B21S3 of 5 models have all five ratings · AHRI 203994968
Non-ducted, 5 tons and upNo models in this size class68.5(50 is the typical model of its size class)YVAHP060B21S*2 of 2 models have all five ratings · AHRI 203994964

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 97% · 2.39CZP12CD(O)Non-ducted, up to 1.5 tonsbeats 100% · 3.44THE2B42T21Ducted, 2.5–3 tons
Capacity retention at 5°Fbeats 95% · 103%CHF36CD(O)Non-ducted, 2.5–3 tonsbeats 100% · 149%THE2B18S21Ducted, up to 1.5 tons
HSPF2beats 99% · 10.3CXH048CD(O)-DUAlso listed as CHF48CD(O)Ducted, 3.5–4.5 tonsbeats 98% · 10.0YVAHP048B21S*Also sold as Coleman CVAHP048B21SDucted, 3.5–4.5 tons
SEER2beats 99% · 24.6CMZ-27-3ZNon-ducted, 2.5–3 tonsbeats 96% · 18.0YMKE60BNJMFMO-XDucted, 5 tons and up
EER2beats 98% · 16.2CHF09CD(O)Non-ducted, up to 1.5 tonsbeats 100% · 16.7YVAHP048B21S*Also sold as Coleman CVAHP048B21SNon-ducted, 3.5–4.5 tons
Heating capacity at 5°Fbeats 98% · 41,000 Btu/hCHF36CD(O)Non-ducted, 2.5–3 tonsbeats 99% · 21,800 Btu/hDHS18CMB22SNon-ducted, up to 1.5 tons

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