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HITACHI heat pump efficiency: 27 outdoor models compared

HITACHI has 27 heat pump outdoor models certified with this refrigerant group, in 47 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 HITACHI makes. HITACHI has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

New to heat pump ratings? The Simple view explains them in plain words →

ManufacturerData as of updated · sources

Outdoor models
27
AHRI certifications
47
Efficiency index
58%
Typical model vs same-size, same-type peers (31 models)
Meet CEE 2025
74.1%
20 models

How HITACHI 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.
HITACHI against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of HITACHI’s own modelsHITACHI is strongest on COP at 5°F (its typical model beats 72% of comparable models) and weakest on heating capacity at 5°F (49%).
  • HITACHI
  • Middle half of its models
  • Other ranked manufacturers
HITACHI

Source: AHRI Directory, NEEP · as of

Average peer percentile of HITACHI’s models
RatingBeats comparable modelsRankRaw median
Efficiency index31 models scored58%Not ranked—
COP at 5°F31 models scored72%Not ranked2.25
Capacity retention at 5°F31 models scored57%Not ranked76%
HSPF239 models scored65%Not ranked9.8
SEER239 models scored50%Not ranked20.0
EER239 models scored53%Not ranked12.5
Heating capacity at 5°F31 models scored49%Not ranked14,500 Btu/h

Standards met

Share of HITACHI’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)74.1%20
CEE 2026 Tier 1 (Split ASHP)74.1%20
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)66.7%18
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate14.8%4

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
HITACHI’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
  • HITACHI (median, middle 50%, 10th–90th)
  • 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 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

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, up to 1.5 tons450%58%50%61%
Ducted, 2 tons256%50%77%80%
Ducted, 2.5–3 tons371%54%79%75%
Ducted, 3.5–4.5 tons366%54%84%85%
Non-ducted, up to 1.5 tons1557%84%65%34%
Non-ducted, 2 tons557%84%59%39%
Non-ducted, 2.5–3 tons452%46%66%40%
Non-ducted, 3.5–4.5 tons260%45%50%74%
Non-ducted, 5 tons and up169%98%81%69%

Every HITACHI model in the market

HITACHI’s 39 models with a known size and duct type, over the shape of the whole catalog.
HITACHI models by size and ratingColoured: HITACHI · grey shapes: all 11,475 models · lines: catalog medians by size
  • HITACHI models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 39 hitachi models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 11,475 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 tons1751.701.851.902.102.26
Ducted, 1 ton3401.851.902.002.402.65
Ducted, 1.5 tons7891.751.852.002.202.55
Ducted, 2 tons7821.731.802.002.102.33
Ducted, 2.5 tons7351.711.801.902.092.48
Ducted, 3 tons6521.681.701.902.062.36
Ducted, 3.5 tons6411.611.801.952.202.50
Ducted, 4 tons3671.701.801.912.022.52
Ducted, 4.5 tons5441.701.801.912.082.34
Ducted, 5 tons251.801.801.901.902.15
Non-ducted, 0.5 tons7171.751.811.972.102.19
Non-ducted, 1 ton1,0641.751.801.902.072.25
Non-ducted, 1.5 tons8861.801.801.872.072.21
Non-ducted, 2 tons5641.801.801.832.042.21
Non-ducted, 2.5 tons2751.801.811.841.862.03
Non-ducted, 3 tons5021.801.801.902.002.09
Non-ducted, 3.5 tons701.821.831.902.002.28
Non-ducted, 4 tons2631.801.801.982.002.10
Non-ducted, 4.5 tons1031.771.771.801.972.02
Non-ducted, 5 tons291.982.002.102.302.47

Source: AHRI Directory · as of

Top HITACHI 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 HITACHI 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
1RAC-SH09WHLAEHitachi · H500with ductless indoor unit RAS-SH09RHLAE1 ton9,000 Btu/h · Non-ducted89%2.2510.38,00020.5CEE 25CEE 26Xcel1206907172Non-ducted, up to 1.5 tons81.1
2RAS-1.0PNNBDH1HITACHI · Hi UNIwith ductless indoor unit RCIM-1.0PNN1DH1 ton9,000 Btu/h · Non-ducted92%2.2610.08,30020.5CEE 25CEE 26XcelES CC3206750851Non-ducted, up to 1.5 tons79.7
3RAC-PH09WHLAEHitachi · H700with ductless indoor unit RAS-PH09PHLAE1 ton9,000 Btu/h · Non-ducted133%1.9011.212,00020.0CEE 25CEE 26Xcel1207200481Non-ducted, up to 1.5 tons79.4
4RAC-SH12WHLAEHitachi · H500with ductless indoor unit RAS-SH12RHLAE1 ton12,000 Btu/h · Non-ducted83%2.2510.210,00020.0CEE 25CEE 26Xcel1206907173Non-ducted, up to 1.5 tons78.6
5RAS-4.0PNNBDH1HITACHIwith ducted air handler RPIM-4.0PNN1DH3 tons36,000 Btu/h · Ducted76%2.209.527,40017.5CEE 25CEE 26Xcel3206750860Ducted, 2.5–3 tons78.1

All-around best

Top 5 HITACHI 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
1HVAHP048B21S*HITACHI · HMSV-A-CB4 tons48,000 Btu/h · Ducted59%1.9510.018.112.5CEE 25CEE 263203994976Ducted, 3.5–4.5 tons77.863.692.0Not a pick
2HVAHP036B21S*HITACHI · HMSV-A-CB3 tons36,000 Btu/h · Non-ducted73%1.8110.822.216.7CEE 25CEE 26Xcel3203994969Non-ducted, 2.5–3 tons74.660.888.560.8
3HVAHP036B21S*HITACHI · HMSV-A-CB3 tons36,000 Btu/h · Ducted79%1.779.518.513.2CEE 25CEE 26Xcel3203994975Ducted, 2.5–3 tons74.358.290.358.2
4RAC-PH24WHLAEHitachi · H700with ductless indoor unit RAS-PH24PHLAE2 tons22,000 Btu/h · Non-ducted98%1.9010.520.013.2CEE 25CEE 26Xcel1207200483Non-ducted, 2 tons73.176.370.076.3
5RAC-SH09WHLAEHitachi · H500with ductless indoor unit RAS-SH09RHLAE1 ton9,000 Btu/h · Non-ducted89%2.2510.320.514.0CEE 25CEE 26Xcel1206907172Non-ducted, up to 1.5 tons72.181.163.181.1

Best model on each rating

HITACHI’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FRAC-EH24WHLAE2.30Non-ducted, 2 tons99%206143040
Capacity retention at 5°FRAC-PH09WHLAE133%Non-ducted, up to 1.5 tons99%207200481
HSPF2HVAHP048B21S*10.0Ducted, 3.5–4.5 tons98%203994976
SEER2HVAHP048B21S*23.1Non-ducted, 3.5–4.5 tons93%203994970
EER2HVAHP048B21S*16.7Non-ducted, 3.5–4.5 tons100%203994970
Heating capacity at 5°FRAC-PH18WHLAE23,000 Btu/hNon-ducted, up to 1.5 tons99%207200484

All 27 HITACHI models in Explore

HITACHI 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.
HITACHI: 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 tons55.9(50 is the typical model of its size class)RAS-1.0PNNBDH1with ducted air handler RPIL-1.0PNN1DH2 of 4 models qualify · AHRI 20675085257.7(50 is the typical model of its size class)RAS-1.0PNNBDH1with ducted air handler RPIL-1.0PNN1DH3 of 4 models have all five ratings · AHRI 206750852
Ducted, 2 tons64.8(50 is the typical model of its size class)RAS-3.0PNNBDH1with ducted air handler RPIM-3.0PNN1DH1 of 2 models qualify · AHRI 20675085855.8(50 is the typical model of its size class)RAS-3.0PNNBDH1with ducted air handler RPIM-3.0PNN1DH1 of 2 models have all five ratings · AHRI 206750858
Ducted, 2.5–3 tons78.1(50 is the typical model of its size class)RAS-4.0PNNBDH1with ducted air handler RPIM-4.0PNN1DH2 of 3 models qualify · AHRI 20675086074.3(50 is the typical model of its size class)HVAHP036B21S*2 of 3 models have all five ratings · AHRI 203994975
Ducted, 3.5–4.5 tonsNone on this board (0 of 3 models qualify)77.8(50 is the typical model of its size class)HVAHP048B21S*2 of 3 models have all five ratings · AHRI 203994976
Non-ducted, up to 1.5 tons81.1(50 is the typical model of its size class)RAC-SH09WHLAEwith ductless indoor unit RAS-SH09RHLAE13 of 15 models qualify · AHRI 20690717272.1(50 is the typical model of its size class)RAC-SH09WHLAEwith ductless indoor unit RAS-SH09RHLAE14 of 15 models have all five ratings · AHRI 206907172
Non-ducted, 2 tons76.3(50 is the typical model of its size class)RAC-PH24WHLAEwith ductless indoor unit RAS-PH24PHLAE3 of 5 models qualify · AHRI 20720048373.1(50 is the typical model of its size class)RAC-PH24WHLAEwith ductless indoor unit RAS-PH24PHLAE4 of 5 models have all five ratings · AHRI 207200483
Non-ducted, 2.5–3 tons77.2(50 is the typical model of its size class)RAS-4.0PNNBDH1with ductless indoor unit RCI-4.0PNN1DH3 of 4 models qualify · AHRI 20675085974.6(50 is the typical model of its size class)HVAHP036B21S*3 of 4 models have all five ratings · AHRI 203994969
Non-ducted, 3.5–4.5 tonsNone on this board (0 of 2 models qualify)67.0(50 is the typical model of its size class)HVAHP048B21S*1 of 2 models have all five ratings · AHRI 203994970
Non-ducted, 5 tons and upNone on this board (0 of 1 models qualify)68.5(50 is the typical model of its size class)HVAHP060B21S*1 of 1 models have all five ratings · AHRI 203994965

All-around board, every manufacturer

Newest HITACHI certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified HITACHI outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
RAS-4.0PNNBDH1HITACHIwith ductless indoor unit RPK-4.0PNN1DH3 tons36,000 Btu/h · Ducted and non-ducted1.9061%9.018.0CEE 25CEE 26Xcel3207656964
RAS-3.0PNNBDH1HITACHI · Hi UNIwith ductless indoor unit RPK-3.0PNN1DH2 tons23,400 Btu/h · Ducted and non-ducted1.9279%9.320.5CEE 25CEE 26XcelES CC3207656963
RAS-2.0PNNBDH1HITACHI · Hi UNIwith ductless indoor unit RPK-2.0PNN1DH1.5 tons18,000 Btu/h · Ducted and non-ducted2.3074%9.622.0CEE 25CEE 26XcelES CC3207656962
RAS-1.5PNNBDH1HITACHI · Hi UNIwith ductless indoor unit RPK-1.5PNN1DH1 ton12,000 Btu/h · Ducted and non-ducted1.8871%9.021.5CEE 25CEE 26XcelES CC3207656961
RAS-1.0PNNBDH1HITACHI · Hi UNIwith ductless indoor unit RPK-1.0PNN1DH1 ton9,000 Btu/h · Ducted and non-ducted2.2687%9.320.0CEE 25CEE 26XcelES CC3207656960

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