Skip to content
Rebate.Blue

AI AIR CONDITIONING vs Mitsutomo heat pumps

Measured against models of the same size and duct type, AI AIR CONDITIONING and Mitsutomo split the 6 ratings 3–3. AI AIR CONDITIONING has 48 outdoor models, Mitsutomo has 31 outdoor models. AI AIR CONDITIONING and Mitsutomo have no QMID on file and are not ranked. They share hardware: 22 equipment families appear under both names.

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

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.
AI AIR CONDITIONING and Mitsutomo 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, AI AIR CONDITIONING and Mitsutomo split the 6 ratings 3–3.
  • AI AIR CONDITIONING
  • Mitsutomo
  • Other ranked manufacturers
AI AIR C…Mitsutomo

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingAI AIR CONDITIONINGMitsutomo
Efficiency index60% (higher)median —59% (higher)median —
COP at 5°F49% (higher)median 1.9048% (higher)median 1.95
Capacity retention at 5°F57%median 72%72%median 88%
HSPF270%median 9.672%median 9.5
SEER268% (higher)median 21.060% (higher)median 20.0
EER256% (higher)median 12.050% (higher)median 11.7
Heating capacity at 5°F56%median 19,471 Btu/h68%median 22,600 Btu/h
Outdoor models4831
AHRI certifications7071

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardAI AIR CONDITIONINGMitsutomo
CEE 2025 Tier 1 (Split ASHP)79.2%38 models71%22 models
CEE 2026 Tier 1 (Split ASHP)72.9%35 models71%22 models
CEE Advanced Tier (Split ASHP)0%0 models3.2%1 models
Xcel Energy Colorado cold-climate ASHP (2025)56.3%27 models67.7%21 models
DOE Cold Climate Heat Pump Challenge0%0 models3.2%1 models
ENERGY STAR Cold Climate56.3%27 models77.4%24 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 · 8 groups where both have models
  • AI AIR CONDITIONING
  • Mitsutomo
  • 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 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 typeAI AIR CONDITIONINGMitsutomo
Ducted, up to 1.5 tons4 · index 54%5 · index 65%
Ducted, 2 tons2 · index 59%2 · index 73%
Ducted, 2.5–3 tons8 · index 62%8 · index 66%
Ducted, 3.5–4.5 tons7 · index 60%6 · index 60%
Ducted, 5 tons and up1 · index 42%None
Non-ducted, up to 1.5 tons20 · index 64%10 · index 56%
Non-ducted, 2 tons4 · index 62%2 · index 47%
Non-ducted, 2.5–3 tons8 · index 58%9 · index 58%
Non-ducted, 3.5–4.5 tons4 · index 51%4 · index 51%

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 typeAI AIR CONDITIONINGCold-climate score, best modelMitsutomoCold-climate score, best model
Ducted, up to 1.5 tons60.4(50 is the typical model of its size class)AUO18-18N1-M3Hwith ducted air handler AUH2-18N1-BM3E3 of 4 models qualify · AHRI 21376992274.9(50 is the typical model of its size class) (higher)HO-SZ09-AB-Qwith ducted air handler HD-UZ09-AB-Q5 of 5 models qualify · AHRI 214056566
Ducted, 2 tons66.5(50 is the typical model of its size class)AUO18-24N1-M3Hwith ducted air handler AUH2-24N1-BM3E2 of 2 models qualify · AHRI 21376992379.4(50 is the typical model of its size class) (higher)HO-SZ24-AB-Qwith ducted air handler HD-UZ24-AB-Q2 of 2 models qualify · AHRI 214056569
Ducted, 2.5–3 tons80.4(50 is the typical model of its size class)A3MO22-27N1-M1H5 of 8 models qualify · AHRI 21376995680.4(50 is the typical model of its size class)HO-MT28-AC-Q7 of 8 models qualify · AHRI 213785766
Ducted, 3.5–4.5 tons74.9(50 is the typical model of its size class)A5MO22-48N1-M1H4 of 7 models qualify · AHRI 21376996286.4(50 is the typical model of its size class) (higher)HO-SZ48-BB-Qwith ducted air handler HD-UZ48-BB-Q6 of 6 models qualify · AHRI 214056577
Ducted, 5 tons and upNone on this board (0 of 1 models qualify)No models in this size class
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class) (higher)AO24-09N1-M1Hwith ductless indoor unit AW25-09N1-M112 of 20 models qualify · AHRI 21376993882.4(50 is the typical model of its size class)HO-SZ06-AB-Qwith ductless indoor unit HJ-UZ06-AB-Q7 of 10 models qualify · AHRI 211306397
Non-ducted, 2 tons84.5(50 is the typical model of its size class)AO29-24N1-M1Hwith ductless indoor unit AW29-24N1-M13 of 4 models qualify · AHRI 21376995086.1(50 is the typical model of its size class) (higher)HO-SZ24-AB-Qwith ductless indoor unit HC-UZ24-AB-Q1 of 2 models qualify · AHRI 214056565
Non-ducted, 2.5–3 tons87.0(50 is the typical model of its size class)A4MO22-36N1-M1H4 of 8 models qualify · AHRI 21376995887.0(50 is the typical model of its size class)HO-MQ36-AC-Q6 of 9 models qualify · AHRI 213785768
Non-ducted, 3.5–4.5 tons80.5(50 is the typical model of its size class)A5MO22-48N1-M1H2 of 4 models qualify · AHRI 21376996180.5(50 is the typical model of its size class)HO-MP48-AB-Q4 of 4 models qualify · AHRI 211306410

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 typeAI AIR CONDITIONINGAll-around score, best modelMitsutomoAll-around score, best model
Ducted, up to 1.5 tons63.4(50 is the typical model of its size class)AUO18-18N1-M3Hwith ducted air handler AUH2-18N1-BM3E4 of 4 models have all five ratings · AHRI 21376992285.2(50 is the typical model of its size class) (higher)HO-SZ09-AB-Qwith ducted air handler HD-UZ09-AB-Q5 of 5 models have all five ratings · AHRI 214056566
Ducted, 2 tons65.8(50 is the typical model of its size class)AUO18-24N1-M3Hwith ducted air handler AUH2-24N1-BM3E2 of 2 models have all five ratings · AHRI 21376992380.1(50 is the typical model of its size class) (higher)HO-SZ24-AB-Qwith ducted air handler HD-UZ24-AB-Q2 of 2 models have all five ratings · AHRI 214056569
Ducted, 2.5–3 tons83.7(50 is the typical model of its size class)A4MO22-36N1-M1H8 of 8 models have all five ratings · AHRI 21376995983.7(50 is the typical model of its size class)HO-MQ36-AC-Q8 of 8 models have all five ratings · AHRI 213785769
Ducted, 3.5–4.5 tons82.0(50 is the typical model of its size class)A5MO22-48N1-M1H7 of 7 models have all five ratings · AHRI 21376996282.0(50 is the typical model of its size class)HO-MP48-AB-Q6 of 6 models have all five ratings · AHRI 211306411
Ducted, 5 tons and up41.7(50 is the typical model of its size class)AUO17-60N1-M3with ducted air handler AUH2-60N1-DM3E1 of 1 models have all five ratings · AHRI 214296082No models in this size class
Non-ducted, up to 1.5 tons88.8(50 is the typical model of its size class) (higher)AO29-09N1-M1Hwith ductless indoor unit AW29-09N1-M120 of 20 models have all five ratings · AHRI 21376994784.4(50 is the typical model of its size class)HO-SZ09-AB-Qwith ductless indoor unit HW-SZ09-AB-Q10 of 10 models have all five ratings · AHRI 211306393
Non-ducted, 2 tons84.3(50 is the typical model of its size class) (higher)AO29-24N1-M1Hwith ductless indoor unit AW29-24N1-M14 of 4 models have all five ratings · AHRI 21376995070.7(50 is the typical model of its size class)HO-SZ24-AB-Qwith ductless indoor unit HW-SZ24-AB-Q2 of 2 models have all five ratings · AHRI 211306396
Non-ducted, 2.5–3 tons76.8(50 is the typical model of its size class)A4MO22-36N1-M1H8 of 8 models have all five ratings · AHRI 21376995876.8(50 is the typical model of its size class)HO-MQ36-AC-Q9 of 9 models have all five ratings · AHRI 213785768
Non-ducted, 3.5–4.5 tons73.8(50 is the typical model of its size class)A5MO22-48N1-M1H4 of 4 models have all five ratings · AHRI 21376996173.8(50 is the typical model of its size class)HO-MP48-AB-Q4 of 4 models have all five ratings · AHRI 211306410

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
RatingAI AIR CONDITIONINGMitsutomo
COP at 5°Fbeats 96% · 2.22AO24-24N1-M1HNon-ducted, 2 tonsbeats 87% · 2.01RO-SZ36-AB-QAlso listed as RO-SZ36-AC-QNon-ducted, 2.5–3 tons
Capacity retention at 5°Fbeats 96% · 101%A3MO22-27N1-M1HDucted, 2.5–3 tonsbeats 96% · 101%HO-MT28-AC-QDucted, 2.5–3 tons
HSPF2beats 100% · 14.5AO29-12N1-M1HNon-ducted, up to 1.5 tonsbeats 99% · 10.3HO-SZ48-BB-QDucted, 3.5–4.5 tons
SEER2beats 99% · 29.0AO29-09N1-M1HNon-ducted, up to 1.5 tonsbeats 99% · 20.9HO-MP48-AB-QDucted, 3.5–4.5 tons
EER2beats 99% · 16.5AO29-09N1-M1HNon-ducted, up to 1.5 tonsbeats 95% · 15.8HO-SZ09-AB-QNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 96% · 20,000 Btu/hA2MO22-18N1-M1HNon-ducted, up to 1.5 tonsbeats 99% · 56,500 Btu/hHW-SZ60-BB-QNon-ducted, 3.5–4.5 tons

More comparisons

Pick any two manufacturers