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COMFORTSTAR vs Fujitsu heat pumps

Measured against models of the same size and duct type, Fujitsu scores higher on 6 of the 6 ratings. COMFORTSTAR has 117 outdoor models, Fujitsu has 164 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, Fujitsu scores higher on 6 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 index48%median —58%median — · 9th ranked
COP at 5°F46%median 1.8870%median 2.10 · 2nd ranked
Capacity retention at 5°F44%median 63%65%median 81% · 3rd ranked
HSPF249%median 8.753%median 8.5 · 12th ranked
SEER244%median 17.046%median 16.6 · 19th ranked
EER244%median 11.049%median 11.5 · 17th ranked
Heating capacity at 5°F46%median 17,600 Btu/h62%median 20,800 Btu/h · 5th ranked
Outdoor models117164
AHRI certifications302765

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCOMFORTSTARFujitsu
CEE 2025 Tier 1 (Split ASHP)36.8%43 models38.4%63 models
CEE 2026 Tier 1 (Split ASHP)35.9%42 models37.8%62 models
CEE Advanced Tier (Split ASHP)0.9%1 models6.1%10 models
Xcel Energy Colorado cold-climate ASHP (2025)23.9%28 models34.1%56 models
DOE Cold Climate Heat Pump Challenge0.9%1 models6.1%10 models
ENERGY STAR Cold Climate22.2%26 models28%46 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
  • Fujitsu
  • 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 typeCOMFORTSTARFujitsu
Ducted, up to 1.5 tons12 · index 62%15 · index 39%
Ducted, 2 tons10 · index 48%14 · index 53%
Ducted, 2.5–3 tons24 · index 44%36 · index 54%
Ducted, 3.5–4.5 tons22 · index 47%42 · index 51%
Ducted, 5 tons and up5 · index 42%12 · index 64%
Non-ducted, up to 1.5 tons33 · index 47%44 · index 74%
Non-ducted, 2 tons8 · index 42%9 · index 65%
Non-ducted, 2.5–3 tons20 · index 46%14 · index 59%
Non-ducted, 3.5–4.5 tons8 · index 54%5 · index 46%
Non-ducted, 5 tons and upNone1 · index 18%

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 tons74.9(50 is the typical model of its size class)CHF09CD(O)with ducted air handler CPA-09C8 of 12 models qualify · AHRI 20765893783.5(50 is the typical model of its size class) (higher)AOUH12LUAS1with ducted air handler ARUH12LUAS5 of 15 models qualify · AHRI 207334301
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 20765893375.4(50 is the typical model of its size class)AOU24RLXFZH6 of 14 models qualify · AHRI 8033742
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 20765894186.6(50 is the typical model of its size class) (higher)AOUH30LUAS1with ducted air handler ARUH30LUAS12 of 36 models qualify · AHRI 211078837
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 20515044183.5(50 is the typical model of its size class)AOU42RGLXwith ducted air handler ARU42RGLX7 of 42 models qualify · AHRI 202537550
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 12 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 20765892296.9(50 is the typical model of its size class) (higher)AOUG12LZAS1with ductless indoor unit ASUG12LZAS28 of 44 models qualify · AHRI 204740068
Non-ducted, 2 tons86.1(50 is the typical model of its size class)CHF24CD(O)with ductless indoor unit TIP-242 of 8 models qualify · AHRI 20765895289.0(50 is the typical model of its size class) (higher)AOUH24LMAS1with ductless indoor unit ASUH24LMAS6 of 9 models qualify · AHRI 206913028
Non-ducted, 2.5–3 tons79.3(50 is the typical model of its size class)CVH-36-4SH3 of 20 models qualify · AHRI 20765898290.6(50 is the typical model of its size class) (higher)AOU30RLXEHwith ductless indoor unit ASU30RLE11 of 14 models qualify · AHRI 8912454
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 20765898475.3(50 is the typical model of its size class)AOU42RGLXwith ductless indoor unit AUU42RGLX2 of 5 models qualify · AHRI 202195867
Non-ducted, 5 tons and upNo models in this size classNone on this board (0 of 1 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 modelFujitsuAll-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 20765893782.7(50 is the typical model of its size class)AOUH12LUAS1with ducted air handler ARUH12LUAS9 of 15 models have all five ratings · AHRI 207334301
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 20765893380.6(50 is the typical model of its size class)FOP1824MJAZCAwith indoor coil FCCA2421HZEA and furnace FF97MV306017DHS*A11 of 14 models have all five ratings · AHRI 209880024
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 20765896887.2(50 is the typical model of its size class) (higher)FOP1836MJAZCAwith indoor coil FCCA6021SZEA and furnace FF75173LT80X22 of 36 models have all five ratings · AHRI 210868911
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 20765898581.5(50 is the typical model of its size class)FOP1848MJAZCA1with ducted air handler FHRAVM6021SJZECA23 of 42 models have all five ratings · AHRI 208587413
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 21260183270.2(50 is the typical model of its size class)FOP1560TJAZNAwith indoor coil FCCN6024SZTA and furnace FF97MV510021DHS*A3 of 12 models have all five ratings · AHRI 212507664
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 20765892296.2(50 is the typical model of its size class) (higher)AOUG12LZAS1with ductless indoor unit ASUG12LZAS29 of 44 models have all five ratings · AHRI 204740068
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 20765892986.5(50 is the typical model of its size class) (higher)AOUH24LUAS1with ductless indoor unit AUUH24LUAS7 of 9 models have all five ratings · AHRI 211078831
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 20765898279.2(50 is the typical model of its size class)AOU36RLXFZH12 of 14 models have all five ratings · AHRI 8908615
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 20765898465.1(50 is the typical model of its size class)AOU42RGLXwith ductless indoor unit AUU42RGLX5 of 5 models have all five ratings · AHRI 202195867
Non-ducted, 5 tons and upNo models in this size class17.7(50 is the typical model of its size class)AOU60RLAVM41 of 1 models have all five ratings · AHRI 206347299

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 97% · 2.39CZP12CD(O)Non-ducted, up to 1.5 tonsbeats 100% · 2.91AOU48RLAVS4Non-ducted, 3.5–4.5 tons
Capacity retention at 5°Fbeats 95% · 103%CHF36CD(O)Non-ducted, 2.5–3 tonsbeats 100% · 158%AOU9RLFFNon-ducted, up to 1.5 tons
HSPF2beats 99% · 10.3CXH048CD(O)-DUAlso listed as CHF48CD(O)Ducted, 3.5–4.5 tonsbeats 98% · 13.4AOUG09LZAS1Non-ducted, up to 1.5 tons
SEER2beats 99% · 24.6CMZ-27-3ZNon-ducted, 2.5–3 tonsbeats 100% · 33.1AOUG09LZAS1Non-ducted, up to 1.5 tons
EER2beats 98% · 16.2CHF09CD(O)Non-ducted, up to 1.5 tonsbeats 100% · 18.0AOUG09LZAS1Non-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 98% · 41,000 Btu/hCHF36CD(O)Non-ducted, 2.5–3 tonsbeats 100% · 43,500 Btu/hFOP1836MJAZCADucted, 2.5–3 tons

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