Skip to content
Rebate.Blue

Mitsutomo heat pump efficiency: 56 outdoor models compared

Mitsutomo has 56 heat pump outdoor models certified with this refrigerant group, in 165 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 Mitsutomo makes. Mitsutomo 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
56
AHRI certifications
165
Efficiency index
58%
Typical model vs same-size, same-type peers (84 models)
Meet CEE 2025
82.1%
46 models

How Mitsutomo 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.
Mitsutomo against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Mitsutomo’s own modelsMitsutomo is strongest on HSPF2 (its typical model beats 69% of comparable models) and weakest on EER2 (51%).
  • Mitsutomo
  • Middle half of its models
  • Other ranked manufacturers
Mitsutomo

Source: AHRI Directory, NEEP · as of

Average peer percentile of Mitsutomo’s models
RatingBeats comparable modelsRankRaw median
Efficiency index84 models scored58%Not ranked—
COP at 5°F84 models scored61%Not ranked2.00
Capacity retention at 5°F84 models scored58%Not ranked78%
HSPF284 models scored69%Not ranked9.7
SEER284 models scored57%Not ranked18.9
EER284 models scored51%Not ranked11.7
Heating capacity at 5°F84 models scored62%Not ranked21,100 Btu/h

Standards met

Share of Mitsutomo’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)82.1%46
CEE 2026 Tier 1 (Split ASHP)78.6%44
CEE Advanced Tier (Split ASHP)3.6%2
Xcel Energy Colorado cold-climate ASHP (2025)75%42
DOE Cold Climate Heat Pump Challenge3.6%2
ENERGY STAR Cold Climate76.8%43

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
Mitsutomo’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
  • Mitsutomo (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 tons1176%76%83%78%
Ducted, 2 tons569%62%83%75%
Ducted, 2.5–3 tons1462%57%76%64%
Ducted, 3.5–4.5 tons1266%48%82%69%
Ducted, 5 tons and up264%78%88%83%
Non-ducted, up to 1.5 tons1951%67%57%48%
Non-ducted, 2 tons548%73%51%41%
Non-ducted, 2.5–3 tons849%49%62%42%
Non-ducted, 3.5–4.5 tons742%52%56%30%
Non-ducted, 5 tons and up127%42%18%16%

Every Mitsutomo model in the market

Mitsutomo’s 84 models with a known size and duct type, over the shape of the whole catalog.
Mitsutomo models by size and ratingColoured: Mitsutomo · grey shapes: all 14,508 models · lines: catalog medians by size
  • Mitsutomo models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 84 mitsutomo 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 Mitsutomo 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 Mitsutomo 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
1HO-SZ06-LA-QMitsutomo · HO Serieswith ductless indoor unit HJ-UZ06-LA-Q0.5 tons6,500 Btu/h · Non-ducted109%2.4012.08,10022.0CEE 25CEE 26CEE AdvXcelDOEES CC3217162582Non-ducted, up to 1.5 tons94.4
2HO-SZ06-LA-QMitsutomo · HO Serieswith ducted air handler HD-UZ06-LA-Q0.5 tons6,500 Btu/h · Ducted98%2.4113.87,80021.4CEE 25CEE 26XcelES CC3217162571Ducted, up to 1.5 tons93.5
3RU-SZ09-LA-QMitsutomo · RU Serieswith ductless indoor unit HL-UZ09-LA-Q1 ton9,000 Btu/h · Non-ducted96%2.2713.98,60026.0CEE 25CEE 26XcelES CC6217162559Non-ducted, up to 1.5 tons89.5
4HO-SG36-LA-QMitsutomo · HO Serieswith ductless indoor unit HF-UG36-LA-Q3 tons36,400 Btu/h · Non-ducted104%2.0210.839,50020.0CEE 25CEE 26XcelES CC4217162601Non-ducted, 2.5–3 tons89.4
5HO-SZ24-LA-QMitsutomo · HO Serieswith ductless indoor unit HC-UZ24-LA-Q2 tons23,400 Btu/h · Non-ducted95%2.2311.623,80020.7CEE 25CEE 26XcelES CC5217162570Non-ducted, 2 tons89.4

All-around best

Top 5 Mitsutomo 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
1HO-SZ06-LA-QMitsutomo · HO Serieswith ducted air handler HD-UZ06-LA-Q0.5 tons6,500 Btu/h · Ducted98%2.4113.821.414.4CEE 25CEE 26XcelES CC3217162571Ducted, up to 1.5 tons95.093.596.593.5
2HO-SZ06-LA-QMitsutomo · HO Serieswith ductless indoor unit HW-UZ06-LA-Q0.5 tons6,000 Btu/h · Non-ducted107%2.2914.625.316.0CEE 25CEE 26CEE AdvXcelDOEES CC3217162538Non-ducted, up to 1.5 tons93.893.893.994.4
3RU-SZ09-LA-QMitsutomo · RU Serieswith ductless indoor unit HL-UZ09-LA-Q1 ton9,000 Btu/h · Non-ducted96%2.2713.926.016.2CEE 25CEE 26XcelES CC6217162559Non-ducted, up to 1.5 tons92.689.595.789.5
4HO-SZ09-LA-QMitsutomo · HO Serieswith ducted air handler HD-UZ09-LA-Q1 ton9,000 Btu/h · Ducted112%1.8912.521.413.4CEE 25CEE 26XcelES CC6217162572Ducted, up to 1.5 tons86.780.093.580.0
5RO-MS48-LA-QMitsutomo · RO Series4 tons45,000 Btu/h · Ducted81%2.1010.620.412.0CEE 25CEE 26XcelES CC3217162504Ducted, 3.5–4.5 tons85.177.992.377.9

Best model on each rating

Mitsutomo’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FRU-SZ12-LA-Q2.51Non-ducted, up to 1.5 tons99%217162560
Capacity retention at 5°FHO-SZ09-LA-Q126%Non-ducted, up to 1.5 tons98%217162579
HSPF2HO-MS48-LA-Q11.0Ducted, 3.5–4.5 tons99%217162519
SEER2RO-MS48-LA-Q20.4Ducted, 3.5–4.5 tons96%217162504
EER2HO-SZ06-LA-Q14.4Ducted, up to 1.5 tons99%217162571
Heating capacity at 5°FHO-SG36-LA-Q39,500 Btu/hNon-ducted, 2.5–3 tons98%217162601

All 56 Mitsutomo models in Explore

Mitsutomo 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.
Mitsutomo: 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 tons93.5(50 is the typical model of its size class)HO-SZ06-LA-Qwith ducted air handler HD-UZ06-LA-Q10 of 11 models qualify · AHRI 21716257195.0(50 is the typical model of its size class)HO-SZ06-LA-Qwith ducted air handler HD-UZ06-LA-Q11 of 11 models have all five ratings · AHRI 217162571
Ducted, 2 tons85.7(50 is the typical model of its size class)HO-SZ24-LA-Qwith ducted air handler HD-UZ24LA-Q5 of 5 models qualify · AHRI 21716257878.8(50 is the typical model of its size class)RU-SZ24-LA-Qwith ducted air handler HD-UZ24LA-Q5 of 5 models have all five ratings · AHRI 217162558
Ducted, 2.5–3 tons83.2(50 is the typical model of its size class)HO-SG36-LA-Qwith ducted air handler HD-UG36LA-Q10 of 14 models qualify · AHRI 21716259883.6(50 is the typical model of its size class)HO-MP36-LA-Q14 of 14 models have all five ratings · AHRI 217162516
Ducted, 3.5–4.5 tons82.7(50 is the typical model of its size class)HO-MS48-LA-Q12 of 12 models qualify · AHRI 21716251985.1(50 is the typical model of its size class)RO-MS48-LA-Q12 of 12 models have all five ratings · AHRI 217162504
Ducted, 5 tons and upNone on this board (0 of 2 models qualify)65.3(50 is the typical model of its size class)RU-SG60-LA-Qwith ducted air handler HD-UG60AL-Q2 of 2 models have all five ratings · AHRI 217162592
Non-ducted, up to 1.5 tons94.4(50 is the typical model of its size class)HO-SZ06-LA-Qwith ductless indoor unit HJ-UZ06-LA-Q12 of 19 models qualify · AHRI 21716258293.8(50 is the typical model of its size class)HO-SZ06-LA-Qwith ductless indoor unit HW-UZ06-LA-Q19 of 19 models have all five ratings · AHRI 217162538
Non-ducted, 2 tons89.4(50 is the typical model of its size class)HO-SZ24-LA-Qwith ductless indoor unit HC-UZ24-LA-Q5 of 5 models qualify · AHRI 21716257074.3(50 is the typical model of its size class)RU-SZ24-LA-Qwith ductless indoor unit HW-UZ24-LA-Q5 of 5 models have all five ratings · AHRI 217162547
Non-ducted, 2.5–3 tons89.4(50 is the typical model of its size class)HO-SG36-LA-Qwith ductless indoor unit HF-UG36-LA-Q6 of 8 models qualify · AHRI 21716260166.3(50 is the typical model of its size class)HO-MP36-LA-Q8 of 8 models have all five ratings · AHRI 217162515
Non-ducted, 3.5–4.5 tons69.9(50 is the typical model of its size class)HO-MS60-LA-Q6 of 7 models qualify · AHRI 21716252362.6(50 is the typical model of its size class)HO-MS60-LA-Q7 of 7 models have all five ratings · AHRI 217162521
Non-ducted, 5 tons and upNone on this board (0 of 1 models qualify)32.5(50 is the typical model of its size class)RO-MS60-LA-Q1 of 1 models have all five ratings · AHRI 217162506

All-around board, every manufacturer

Newest Mitsutomo certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Mitsutomo outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
HO-SG60-LA-QMitsutomo · HO Serieswith ductless indoor unit HF-UG60-LA-Q4.5 tons54,000 Btu/h · Ducted and non-ducted1.9190%10.718.0XcelES CC3217162603
HO-SG48-LA-QMitsutomo · HO Serieswith ductless indoor unit HF-UG48-LA-Q4 tons48,000 Btu/h · Ducted and non-ducted1.8390%10.118.5CEE 25CEE 26XcelES CC4217162602
HO-SG36-LA-QMitsutomo · HO Serieswith ductless indoor unit HF-UG36-LA-Q3 tons36,400 Btu/h · Ducted and non-ducted2.02104%10.820.0CEE 25CEE 26XcelES CC4217162601
RU-SG60-LA-QMitsutomowith ductless indoor unit HF-UG60-LA-Q4.5 tons54,000 Btu/h · Ducted and non-ducted2.0158%9.519.5CEE 25CEE 263217162595
RU-SG48-LA-QMitsutomo · RU Serieswith ductless indoor unit HF-UG48-LA-Q4 tons48,000 Btu/h · Ducted and non-ducted1.9577%10.219.8CEE 25CEE 26XcelES CC4217162594

Shares hardware with

Manufacturers whose models are the same equipment under another badge. About OEM families

Compare Mitsutomo

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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