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COMFORTSTAR vs MRCOOL heat pumps

Measured against models of the same size and duct type, MRCOOL scores higher on 4 of the 6 ratings. COMFORTSTAR has 117 outdoor models, MRCOOL has 111 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 MRCOOL 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, MRCOOL scores higher on 4 of the 6 ratings.
  • COMFORTSTAR
  • MRCOOL
  • Other ranked manufacturers
COMFORTS…MRCOOL

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingCOMFORTSTARMRCOOL
Efficiency index48%median —54%median — · 15th ranked
COP at 5°F46%median 1.8849%median 1.94 · 18th ranked
Capacity retention at 5°F44% (higher)median 63%41% (higher)median 64% · 24th ranked
HSPF249%median 8.751%median 8.6 · 15th ranked
SEER244%median 17.050%median 16.6 · 12th ranked
EER244%median 11.056%median 11.7 · 12th ranked
Heating capacity at 5°F46% (higher)median 17,600 Btu/h43% (higher)median 17,800 Btu/h · 21st ranked
Outdoor models117111
AHRI certifications302361

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCOMFORTSTARMRCOOL
CEE 2025 Tier 1 (Split ASHP)36.8%43 models46.8%52 models
CEE 2026 Tier 1 (Split ASHP)35.9%42 models43.2%48 models
CEE Advanced Tier (Split ASHP)0.9%1 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)23.9%28 models25.2%28 models
DOE Cold Climate Heat Pump Challenge0.9%1 models0%0 models
ENERGY STAR Cold Climate22.2%26 models22.5%25 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
  • MRCOOL
  • 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 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 typeCOMFORTSTARMRCOOL
Ducted, up to 1.5 tons12 · index 62%8 · index 55%
Ducted, 2 tons10 · index 48%13 · index 57%
Ducted, 2.5–3 tons24 · index 44%24 · index 55%
Ducted, 3.5–4.5 tons22 · index 47%27 · index 55%
Ducted, 5 tons and up5 · index 42%4 · index 41%
Non-ducted, up to 1.5 tons33 · index 47%23 · index 56%
Non-ducted, 2 tons8 · index 42%7 · index 56%
Non-ducted, 2.5–3 tons20 · index 46%10 · index 45%
Non-ducted, 3.5–4.5 tons8 · index 54%2 · index 49%

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 modelMRCOOLCold-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 20765893773.5(50 is the typical model of its size class)DIYH-18-HP-C-230C25with ducted air handler DIYH-18-HP-MUAH-230C252 of 8 models qualify · AHRI 210295926
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 20765893369.5(50 is the typical model of its size class)CENTRAL-24-HP-C-230A00with ducted air handler CENTRAL-24-HP-MUAH230A005 of 11 models qualify · AHRI 211497151
Ducted, 2.5–3 tons79.9(50 is the typical model of its size class) (higher)CHF36CD(O)with ducted air handler CPA-36C6 of 24 models qualify · AHRI 20765894174.8(50 is the typical model of its size class)CENTRAL-36-HP-C-230A00with ducted air handler CENTRAL-36-HP-MUAH230A006 of 26 models qualify · AHRI 210279122
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 20515044177.1(50 is the typical model of its size class)CENTRAL-60-HP-C-230A00with ducted air handler CENTRAL-60-HP-MUAH230A006 of 27 models qualify · AHRI 210279124
Ducted, 5 tons and up70.2(50 is the typical model of its size class)CCRT60-1-INV1 of 5 models qualify · AHRI 212601832None on this board (0 of 4 models qualify)
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class)CZP09CD(O)with ductless indoor unit CHF09CD(I)11 of 33 models qualify · AHRI 20765892286.0(50 is the typical model of its size class)O-ES-09-HP-C-230Bwith ductless indoor unit O-09-HP-WMAH-230B8 of 23 models qualify · AHRI 208552810
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 20765895284.5(50 is the typical model of its size class)O-HH-24-HP-C-230Awith ductless indoor unit O-24-HP-WMAH-230BAlso listed as O-HH-24-HP-C-230B3 of 7 models qualify · AHRI 207339164
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 20765898253.7(50 is the typical model of its size class)DIY-MULTI3-27HP230C1 of 10 models qualify · AHRI 207339195
Non-ducted, 3.5–4.5 tons76.2(50 is the typical model of its size class)CVH-48-5SH4 of 8 models qualify · AHRI 207658984None 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 modelMRCOOLAll-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 20765893759.4(50 is the typical model of its size class)MULTI2-18HP230B4 of 8 models have all five ratings · AHRI 208552830
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 20765893368.2(50 is the typical model of its size class)DIYH-24-HP-C-230C25with ducted air handler DIYH-24-HP-MUAH-230C2510 of 13 models have all five ratings · AHRI 210288098
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 20765896875.4(50 is the typical model of its size class)MULTI3-27HP230B14 of 24 models have all five ratings · AHRI 208552953
Ducted, 3.5–4.5 tons82.0(50 is the typical model of its size class) (higher)CVH-48-5SH12 of 22 models have all five ratings · AHRI 20765898569.0(50 is the typical model of its size class)MHP17048A-**Awith indoor coil MCHP51CNPA*+TDR+TXV and furnace MGM80SE090C5A16 of 27 models have all five ratings · AHRI 211737253
Ducted, 5 tons and up75.1(50 is the typical model of its size class) (higher)CCRT60-1-INV5 of 5 models have all five ratings · AHRI 21260183262.6(50 is the typical model of its size class)MHP17060A-**Awith indoor coil MCVP60CNPA+TDR and furnace MGM80SE090C5A2 of 4 models have all five ratings · AHRI 212619860
Non-ducted, up to 1.5 tons88.4(50 is the typical model of its size class)CZP09CD(O)with ductless indoor unit CHF09CD(I)30 of 33 models have all five ratings · AHRI 20765892288.4(50 is the typical model of its size class)O-ES-09-HP-C-230Bwith ductless indoor unit O-09-HP-WMAH-230B23 of 23 models have all five ratings · AHRI 208552810
Non-ducted, 2 tons84.3(50 is the typical model of its size class)CHF24CD(O)with ductless indoor unit CHF24CD(I)7 of 8 models have all five ratings · AHRI 20765892984.3(50 is the typical model of its size class)O-HH-24-HP-C-230Awith ductless indoor unit O-24-HP-WMAH-230BAlso listed as O-HH-24-HP-C-230B7 of 7 models have all five ratings · AHRI 207339164
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 20765898278.2(50 is the typical model of its size class)MULTI3-27HP230B7 of 10 models have all five ratings · AHRI 208552834
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 20765898456.1(50 is the typical model of its size class)MULTI5-48HP230B2 of 2 models have all five ratings · AHRI 208552838

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
RatingCOMFORTSTARMRCOOL
COP at 5°Fbeats 97% · 2.39CZP12CD(O)Non-ducted, up to 1.5 tonsbeats 97% · 2.39O-ES-12-HP-C-230BNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 95% · 103%CHF36CD(O)Non-ducted, 2.5–3 tonsbeats 97% · 98%MDPH180484Ducted, 3.5–4.5 tons
HSPF2beats 99% · 10.3CXH048CD(O)-DUAlso listed as CHF48CD(O)Ducted, 3.5–4.5 tonsbeats 98% · 9.8DIY-MULTI5-48HP230CDucted, 3.5–4.5 tons
SEER2beats 99% · 24.6CMZ-27-3ZNon-ducted, 2.5–3 tonsbeats 99% · 24.6MULTI3-27HP230BNon-ducted, 2.5–3 tons
EER2beats 98% · 16.2CHF09CD(O)Non-ducted, up to 1.5 tonsbeats 99% · 14.0MHP17024A-**ADucted, 2 tons
Heating capacity at 5°Fbeats 98% · 41,000 Btu/hCHF36CD(O)Non-ducted, 2.5–3 tonsbeats 99% · 54,356 Btu/hCENTRAL-60-HP-C-230A00Ducted, 3.5–4.5 tons

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