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COMFORTSTAR vs Fujitsu heat pumps

Measured against models of the same size and duct type, COMFORTSTAR scores higher on 3 of the 6 ratings. COMFORTSTAR has 133 outdoor models, Fujitsu 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 Fujitsu 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, COMFORTSTAR scores higher on 3 of the 6 ratings.
  • COMFORTSTAR
  • Fujitsu
  • Other ranked manufacturers
COMFORTS…Fujitsu

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingCOMFORTSTARFujitsu
Efficiency index50%median —53%median — · 16th ranked
COP at 5°F51%median 2.0060%median 2.10 · 8th ranked
Capacity retention at 5°F48%median 71%48%median 56% · 19th ranked
HSPF254% (higher)median 8.744% (higher)median 7.5 · 19th ranked
SEER249% (higher)median 17.143% (higher)median 15.2 · 22nd ranked
EER244%median 11.247%median 11.0 · 19th ranked
Heating capacity at 5°F52% (higher)median 20,600 Btu/h50% (higher)median 18,100 Btu/h · 17th ranked
Outdoor models133179
AHRI certifications4612,057

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCOMFORTSTARFujitsu
CEE 2025 Tier 1 (Split ASHP)53.4%71 models32.4%58 models
CEE 2026 Tier 1 (Split ASHP)53.4%71 models31.3%56 models
CEE Advanced Tier (Split ASHP)1.5%2 models7.8%14 models
Xcel Energy Colorado cold-climate ASHP (2025)46.6%62 models29.6%53 models
DOE Cold Climate Heat Pump Challenge1.5%2 models7.8%14 models
ENERGY STAR Cold Climate30.1%40 models26.8%48 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
  • COMFORTSTAR
  • Fujitsu
  • 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 typeCOMFORTSTARFujitsu
Ducted, up to 1.5 tons17 · index 67%12 · index 57%
Ducted, 2 tons17 · index 48%17 · index 37%
Ducted, 2.5–3 tons31 · index 49%44 · index 42%
Ducted, 3.5–4.5 tons36 · index 49%56 · index 44%
Ducted, 5 tons and up2 · index 64%22 · index 32%
Non-ducted, up to 1.5 tons25 · index 56%27 · index 75%
Non-ducted, 2 tons7 · index 46%8 · index 74%
Non-ducted, 2.5–3 tons18 · index 44%11 · index 68%
Non-ducted, 3.5–4.5 tons11 · index 39%8 · index 62%
Non-ducted, 5 tons and up1 · index 27%1 · index 78%

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 modelFujitsuCold-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 21713837587.4(50 is the typical model of its size class)AOUH18KUAH1with ducted air handler ARUH18KUAS7 of 12 models qualify · AHRI 218814795
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 21713836183.4(50 is the typical model of its size class) (higher)AOUH24KUAH1with ducted air handler ARUH24KUAS5 of 17 models qualify · AHRI 218807602
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 21713838787.0(50 is the typical model of its size class) (higher)AOUH30KUAH1with ducted air handler AMUH30KUAS8 of 44 models qualify · AHRI 217895716
Ducted, 3.5–4.5 tons82.7(50 is the typical model of its size class) (higher)CVH3-48-6SH16 of 36 models qualify · AHRI 21672091979.3(50 is the typical model of its size class)AOUH42KUAS1with ducted air handler ARUH42KUAS9 of 56 models qualify · AHRI 215812202
Ducted, 5 tons and upNone on this board (0 of 2 models qualify)71.9(50 is the typical model of its size class)AOUK060MSAN71 of 22 models qualify · AHRI 218467769
Non-ducted, up to 1.5 tons94.4(50 is the typical model of its size class)CHF3-06CD(O)with ductless indoor unit T1W3-06CD(I)17 of 25 models qualify · AHRI 21713838398.5(50 is the typical model of its size class) (higher)AOUH09KTAP1with ductless indoor unit ASUH09KTAS25 of 27 models qualify · AHRI 216018255
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 21713837493.1(50 is the typical model of its size class) (higher)AOUK024SSAN77 of 8 models qualify · AHRI 216372779
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 21713838494.6(50 is the typical model of its size class) (higher)AOUH30KUAH1with ductless indoor unit AUUH30KUAS9 of 11 models qualify · AHRI 217895708
Non-ducted, 3.5–4.5 tons69.9(50 is the typical model of its size class)CVH3-60-6SH9 of 11 models qualify · AHRI 21672092376.7(50 is the typical model of its size class) (higher)AOUH42KUAH1with ductless indoor unit AUUH42KUAS7 of 8 models qualify · AHRI 217895710
Non-ducted, 5 tons and upNone on this board (0 of 1 models qualify)70.6(50 is the typical model of its size class)AOUK060MSAN71 of 1 models qualify · AHRI 218466063

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 modelFujitsuAll-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 21713837590.0(50 is the typical model of its size class)AOUH12KUBS1with ducted air handler ADUH12KUBS12 of 12 models have all five ratings · AHRI 218814799
Ducted, 2 tons78.8(50 is the typical model of its size class)CPP3-24CD(O)with ducted air handler CPA3H-24CD(I)15 of 17 models have all five ratings · AHRI 21672090285.7(50 is the typical model of its size class) (higher)AOUH24KWAH317 of 17 models have all five ratings · AHRI 215447694
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 21672091686.1(50 is the typical model of its size class) (higher)AOUH30KUAH1with ducted air handler AMUH30KUAS28 of 44 models have all five ratings · AHRI 217895716
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 21672093485.4(50 is the typical model of its size class) (higher)AOUH42KUAH1with ducted air handler ARUH42KUAS28 of 52 models have all five ratings · AHRI 217895714
Ducted, 5 tons and up65.3(50 is the typical model of its size class) (higher)CPP3-60DU(O)with ducted air handler CPA3H-60DU(I)2 of 2 models have all five ratings · AHRI 21672090556.6(50 is the typical model of its size class)WP15AY60AJ2Nwith ducted air handler FHRNTT6024S*YTNAAlso listed as FOP1560TJAYNA14 of 26 models have all five ratings · AHRI 215415496
Non-ducted, up to 1.5 tons93.8(50 is the typical model of its size class)CHF3-06CD(O)with ductless indoor unit CPP3-06CD(I)22 of 25 models have all five ratings · AHRI 21713836899.1(50 is the typical model of its size class) (higher)AOUH09KTAP1with ductless indoor unit ASUH09KTAS27 of 27 models have all five ratings · AHRI 216018255
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 21672088788.0(50 is the typical model of its size class) (higher)AOUK024SSAN78 of 8 models have all five ratings · AHRI 216372779
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 21672091590.0(50 is the typical model of its size class) (higher)AOUH30KUAH1with ductless indoor unit AUUH30KUAS10 of 11 models have all five ratings · AHRI 217895708
Non-ducted, 3.5–4.5 tons62.6(50 is the typical model of its size class)CVH3-60-6SH11 of 11 models have all five ratings · AHRI 21672092180.2(50 is the typical model of its size class) (higher)AOUH42KUAH1with ductless indoor unit AUUH42KUAS7 of 8 models have all five ratings · AHRI 217895710
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 21672093677.9(50 is the typical model of its size class) (higher)AOUK060MSAN71 of 1 models have all five ratings · AHRI 218466063

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
RatingCOMFORTSTARFujitsu
COP at 5°Fbeats 98% · 2.47CPP3-12CD(O)Non-ducted, up to 1.5 tonsbeats 100% · 3.03AOUK024SSAN7Non-ducted, 2 tons
Capacity retention at 5°Fbeats 99% · 115%CHH32-36Ducted, 2.5–3 tonsbeats 100% · 102%AOUH42KUAH1Non-ducted, 3.5–4.5 tons
HSPF2beats 99% · 11.0CVH3-48-6SHDucted, 3.5–4.5 tonsbeats 98% · 14.0AOUH09KTAP1Non-ducted, up to 1.5 tons
SEER2beats 97% · 22.0C32-MZ-2Ducted, up to 1.5 tonsbeats 100% · 33.5AOUH09KTAP1Non-ducted, up to 1.5 tons
EER2beats 99% · 14.4CHF3-06CD(O)Ducted, up to 1.5 tonsbeats 100% · 19.1AOUH09KTAP1Non-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 100% · 42,500 Btu/hCHH32-36Ducted, 2.5–3 tonsbeats 100% · 25,400 Btu/hAOUH18KZAH1Non-ducted, up to 1.5 tons

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