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Fujitsu heat pump efficiency: 179 outdoor models compared

Fujitsu has 179 heat pump outdoor models certified with this refrigerant group, in 2,057 AHRI-certified combinations. Each model is compared with models of the same size and duct type, so the scores below do not depend on which sizes Fujitsu makes. Ranks are among manufacturers with a QMID on file and at least 10 scored models.

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ManufacturerData as of updated · sources

Outdoor models
179
AHRI certifications
2,057
Efficiency index
53%
Typical model vs same-size, same-type peers (152 models)
Meet CEE 2025
32.4%
58 models

How Fujitsu compares with comparable models

For each rating: the share of same-size, same-type models that a typical model of this manufacturer beats (50% is typical), its rank, and the raw median for context. Raw medians are not comparable across manufacturers that make different sizes.
Fujitsu against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Fujitsu’s own modelsFujitsu is strongest on COP at 5°F (its typical model beats 60% of comparable models) and weakest on SEER2 (43%).
  • Fujitsu
  • Middle half of its models
  • Other ranked manufacturers
Fujitsu

Source: AHRI Directory, NEEP · as of

Average peer percentile of Fujitsu’s models
RatingBeats comparable modelsRankRaw median
Efficiency index152 models scored53%16th of 29—
COP at 5°F152 models scored60%8th of 292.10
Capacity retention at 5°F154 models scored48%19th of 2956%
HSPF2206 models scored44%19th of 297.5
SEER2206 models scored43%22nd of 2915.2
EER2206 models scored47%19th of 2911.0
Heating capacity at 5°F154 models scored50%17th of 2918,100 Btu/h

Standards met

Share of Fujitsu’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)32.4%58
CEE 2026 Tier 1 (Split ASHP)31.3%56
CEE Advanced Tier (Split ASHP)7.8%14
Xcel Energy Colorado cold-climate ASHP (2025)29.6%53
DOE Cold Climate Heat Pump Challenge7.8%14
ENERGY STAR Cold Climate26.8%48

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
Fujitsu’s models inside each size and duct typeShape: every model of the group · blue: the middle half of this manufacturer’s models there, median dot, 10th–90th percentile line
  • Fujitsu (median, middle 50%, 10th–90th)
  • 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

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, up to 1.5 tons1257%71%55%54%
Ducted, 2 tons1737%46%35%36%
Ducted, 2.5–3 tons4442%48%31%32%
Ducted, 3.5–4.5 tons5644%52%32%34%
Ducted, 5 tons and up2232%19%32%29%
Non-ducted, up to 1.5 tons2775%84%80%71%
Non-ducted, 2 tons874%77%79%72%
Non-ducted, 2.5–3 tons1168%74%75%61%
Non-ducted, 3.5–4.5 tons862%80%52%54%
Non-ducted, 5 tons and up178%99%47%93%

Every Fujitsu model in the market

Fujitsu’s 206 models with a known size and duct type, over the shape of the whole catalog.
Fujitsu models by size and ratingColoured: Fujitsu · grey shapes: all 14,508 models · lines: catalog medians by size
  • Fujitsu models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 206 fujitsu models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 models, half a ton at a time.
Show the data as a table
COP at 5°F by size and duct type (every model, by rated cooling capacity)
Duct type, sizeModels10th pct.25thMedian75th90th
Ducted, 0.5 tons8261.641.711.751.852.24
Ducted, 1 ton4071.801.902.052.412.45
Ducted, 1.5 tons9921.751.862.002.172.40
Ducted, 2 tons9991.751.862.002.182.30
Ducted, 2.5 tons1,0401.701.802.002.102.36
Ducted, 3 tons6961.801.902.002.102.42
Ducted, 3.5 tons8641.701.802.002.102.46
Ducted, 4 tons7271.801.862.002.122.40
Ducted, 4.5 tons6901.701.801.902.102.20
Ducted, 5 tons861.892.002.102.102.10
Non-ducted, 0.5 tons1,1861.751.801.902.002.22
Non-ducted, 1 ton1,3431.801.801.992.102.21
Non-ducted, 1.5 tons1,2611.801.802.002.102.31
Non-ducted, 2 tons7611.801.982.002.102.30
Non-ducted, 2.5 tons4031.801.852.002.002.10
Non-ducted, 3 tons4731.901.982.002.032.20
Non-ducted, 3.5 tons2802.002.002.002.052.10
Non-ducted, 4 tons2041.962.002.052.102.11
Non-ducted, 4.5 tons781.901.911.952.012.01
Non-ducted, 5 tons841.992.002.052.202.20

Source: AHRI Directory · as of

Top Fujitsu models

Its top five cold-climate picks and its top five all-around models across sizes (both scores compare each model with models of its own size and duct type, so sizes compare), then, on each single rating, the model that beats the largest share of comparable models.

Cold-climate picks

Top 5 Fujitsu cold-climate picks across sizes. 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.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2Btu/h @5°FSEER2MeetsCombosAHRI ref.Compared withScore
1AOUH09KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH09KTAS1 ton9,000 Btu/h · Non-ducted142%2.4814.017,00033.5CEE 25CEE 26CEE AdvXcelDOEES CC4216018255Non-ducted, up to 1.5 tons98.5
2AOUH12KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH12KTAB1 ton12,000 Btu/h · Non-ducted106%2.6213.716,20031.5CEE 25CEE 26CEE AdvXcelDOEES CC4217190054Non-ducted, up to 1.5 tons96.6
3AOUH15KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH15KTAB1 ton14,500 Btu/h · Non-ducted106%2.5413.018,40028.7CEE 25CEE 26CEE AdvXcelDOEES CC4217190055Non-ducted, up to 1.5 tons96.4
4AOUH09KZAH1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH09KZAS1 ton9,000 Btu/h · Non-ducted128%2.2613.315,40033.1CEE 25CEE 26CEE AdvXcelDOEES CC2214888800Non-ducted, up to 1.5 tons95.8
5AOUH30KUAH1FUJITSU · AIRSTAGE H-serieswith ductless indoor unit AUUH30KUAS2.5 tons30,000 Btu/h · Non-ducted103%2.1611.033,00023.0CEE 25CEE 26CEE AdvXcelDOEES CC4217895708Non-ducted, 2.5–3 tons94.6

All-around best

Top 5 Fujitsu models on the all-around score across sizes. 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.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2SEER2EER2MeetsCombosAHRI ref.Compared withScoreHeating halfCooling halfCold-climate score
1AOUH09KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH09KTAS1 ton9,000 Btu/h · Non-ducted142%2.4814.033.519.1CEE 25CEE 26CEE AdvXcelDOEES CC4216018255Non-ducted, up to 1.5 tons99.198.599.798.5
2AOUH09KZAH1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH09KZAS1 ton9,000 Btu/h · Non-ducted128%2.2613.333.118.8CEE 25CEE 26CEE AdvXcelDOEES CC2214888800Non-ducted, up to 1.5 tons97.695.899.495.8
3AOUH12KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH12KTAB1 ton12,000 Btu/h · Non-ducted106%2.6213.731.516.7CEE 25CEE 26CEE AdvXcelDOEES CC4217190054Non-ducted, up to 1.5 tons97.396.698.096.6
4AOUH15KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH15KTAB1 ton14,500 Btu/h · Non-ducted106%2.5413.028.715.4CEE 25CEE 26CEE AdvXcelDOEES CC4217190055Non-ducted, up to 1.5 tons96.596.496.596.4
5AOUH12KZAH1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH12KZAS1 ton12,000 Btu/h · Non-ducted104%2.1612.730.516.0CEE 25CEE 26CEE AdvXcelDOEES CC2214888802Non-ducted, up to 1.5 tons93.990.197.690.1

Best model on each rating

Fujitsu’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FAOUK024SSAN73.03Non-ducted, 2 tons100%216372779
Capacity retention at 5°FAOUH42KUAH1102%Non-ducted, 3.5–4.5 tons100%217895710
HSPF2AOUH09KTAP114.0Non-ducted, up to 1.5 tons98%216018255
SEER2AOUH09KTAP133.5Non-ducted, up to 1.5 tons100%216018255
EER2AOUH09KTAP119.1Non-ducted, up to 1.5 tons100%216018255
Heating capacity at 5°FAOUH18KZAH125,400 Btu/hNon-ducted, up to 1.5 tons100%215647921

All 179 Fujitsu models in Explore

Fujitsu size class by size class: cold-climate and all-around

Its best model on each board in every size and duct type it makes. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there). Cold-climate picks must keep at least 70% of their heat at 5°F; the all-around score needs all five ratings and has no such bar.
Fujitsu: best cold-climate pick and best all-around model per size and duct type, with how many of its models are on each board (top 5 and 5 per class are in the snapshot)
Size and duct typeCold-climate pickCold-climate score, best modelAll-around bestAll-around score, best model
Ducted, up to 1.5 tons87.4(50 is the typical model of its size class)AOUH18KUAH1with ducted air handler ARUH18KUAS7 of 12 models qualify · AHRI 21881479590.0(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 tons83.4(50 is the typical model of its size class)AOUH24KUAH1with ducted air handler ARUH24KUAS5 of 17 models qualify · AHRI 21880760285.7(50 is the typical model of its size class)AOUH24KWAH317 of 17 models have all five ratings · AHRI 215447694
Ducted, 2.5–3 tons87.0(50 is the typical model of its size class)AOUH30KUAH1with ducted air handler AMUH30KUAS8 of 44 models qualify · AHRI 21789571686.1(50 is the typical model of its size class)AOUH30KUAH1with ducted air handler AMUH30KUAS28 of 44 models have all five ratings · AHRI 217895716
Ducted, 3.5–4.5 tons79.3(50 is the typical model of its size class)AOUH42KUAS1with ducted air handler ARUH42KUAS9 of 56 models qualify · AHRI 21581220285.4(50 is the typical model of its size class)AOUH42KUAH1with ducted air handler ARUH42KUAS28 of 52 models have all five ratings · AHRI 217895714
Ducted, 5 tons and up71.9(50 is the typical model of its size class)AOUK060MSAN71 of 22 models qualify · AHRI 21846776956.6(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 tons98.5(50 is the typical model of its size class)AOUH09KTAP1with ductless indoor unit ASUH09KTAS25 of 27 models qualify · AHRI 21601825599.1(50 is the typical model of its size class)AOUH09KTAP1with ductless indoor unit ASUH09KTAS27 of 27 models have all five ratings · AHRI 216018255
Non-ducted, 2 tons93.1(50 is the typical model of its size class)AOUK024SSAN77 of 8 models qualify · AHRI 21637277988.0(50 is the typical model of its size class)AOUK024SSAN78 of 8 models have all five ratings · AHRI 216372779
Non-ducted, 2.5–3 tons94.6(50 is the typical model of its size class)AOUH30KUAH1with ductless indoor unit AUUH30KUAS9 of 11 models qualify · AHRI 21789570890.0(50 is the typical model of its size class)AOUH30KUAH1with ductless indoor unit AUUH30KUAS10 of 11 models have all five ratings · AHRI 217895708
Non-ducted, 3.5–4.5 tons76.7(50 is the typical model of its size class)AOUH42KUAH1with ductless indoor unit AUUH42KUAS7 of 8 models qualify · AHRI 21789571080.2(50 is the typical model of its size class)AOUH42KUAH1with ductless indoor unit AUUH42KUAS7 of 8 models have all five ratings · AHRI 217895710
Non-ducted, 5 tons and up70.6(50 is the typical model of its size class)AOUK060MSAN71 of 1 models qualify · AHRI 21846606377.9(50 is the typical model of its size class)AOUK060MSAN71 of 1 models have all five ratings · AHRI 218466063

All-around board, every manufacturer

Newest Fujitsu certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Fujitsu outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
AOUH12KUBS1FUJITSU · AIRSTAGE H serieswith ducted air handler ADUH12KUBS1 ton12,000 Btu/h · Ducted and non-ducted2.1297%10.521.5CEE 25CEE 26XcelES CC6218814799
AOUH24KUAH1FUJITSU · AIRSTAGE H-serieswith ductless indoor unit AUUH24KUAS2 tons24,000 Btu/h · Ducted and non-ducted2.02104%11.023.2CEE 25CEE 26CEE AdvXcelDOE4218814798
AOUH18KUAH1FUJITSU · AIRSTAGE H serieswith ducted air handler AMUH18KUAS1.5 tons18,000 Btu/h · Ducted and non-ducted1.92101%10.517.5CEE 25CEE 26CEE AdvXcelDOE6218814796
AOUH18KUAS1FUJITSU · AIRSTAGE H-serieswith ducted air handler ADUH18KUBS1.5 tons18,000 Btu/h · Ducted and non-ducted2.3482%10.521.0CEE 25CEE 26XcelES CC6218807605
AOUH12KUAH1FUJITSU · AIRSTAGE H serieswith ducted air handler ADUH12KUBS1 ton12,000 Btu/h · Ducted and non-ducted1.98115%10.521.5CEE 25CEE 26CEE AdvXcelDOE6218807604

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No shared hardware found for Fujitsu in this group.

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Fujitsu includes these brand names as listed in AHRI: FUJITSU. Standards are checked against published thresholds; program rules beyond ratings are not checked.