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.

Ephoca 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, Mitsutomo scores higher on 6 of the 6 ratings.

Ephoca
Mitsutomo
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 11, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Ephoca	Mitsutomo
Efficiency index	20%median —	59%median —
COP at 5°F	4%median 1.72	48%median 1.95
Capacity retention at 5°F	48%median 73%	72%median 88%
HSPF2	38%median 9.2	72%median 9.5
SEER2	7%median 13.9	60%median 20.0
EER2	14%median 10.6	50%median 11.7
Heating capacity at 5°F	5%median 6,200 Btu/h	68%median 22,600 Btu/h
Outdoor models	30	31
AHRI certifications	30	71

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Ephoca	Mitsutomo
CEE 2025 Tier 1 (Split ASHP)	0%0 models	71%22 models
CEE 2026 Tier 1 (Split ASHP)	0%0 models	71%22 models
CEE Advanced Tier (Split ASHP)	0%0 models	3.2%1 models
Xcel Energy Colorado cold-climate ASHP (2025)	0%0 models	67.7%21 models
DOE Cold Climate Heat Pump Challenge	0%0 models	3.2%1 models
ENERGY STAR Cold Climate	13.3%4 models	77.4%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 · 2 groups where both have models

Ephoca
Mitsutomo
All models of the group

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of Oct 11, 2026

Models per peer group · efficiency index within the group
Size and duct type	Ephoca	Mitsutomo
Ducted, up to 1.5 tons	26 · index 20%	5 · index 65%
Ducted, 2 tons	None	2 · index 73%
Ducted, 2.5–3 tons	None	8 · index 66%
Ducted, 3.5–4.5 tons	None	6 · index 60%
Non-ducted, up to 1.5 tons	4 · index 25%	10 · index 56%
Non-ducted, 2 tons	None	2 · index 47%
Non-ducted, 2.5–3 tons	None	9 · index 58%
Non-ducted, 3.5–4.5 tons	None	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 type	EphocaCold-climate score, best model	MitsutomoCold-climate score, best model
Ducted, up to 1.5 tons	41.4(50 is the typical model of its size class)AVP1041Also listed as AVP1042, AVE1042, AVK1042, AXP1041 and 4 more26 of 26 models qualify · AHRI 213607332	74.9(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 tons	No models in this size class	79.4(50 is the typical model of its size class)HO-SZ24-AB-Qwith ducted air handler HD-UZ24-AB-Q2 of 2 models qualify · AHRI 214056569
Ducted, 2.5–3 tons	No models in this size class	80.4(50 is the typical model of its size class)HO-MT28-AC-Q7 of 8 models qualify · AHRI 213785766
Ducted, 3.5–4.5 tons	No models in this size class	86.4(50 is the typical model of its size class)HO-SZ48-BB-Qwith ducted air handler HD-UZ48-BB-Q6 of 6 models qualify · AHRI 214056577
Non-ducted, up to 1.5 tons	32.8(50 is the typical model of its size class)APP1041with ductless indoor unit APP1041Also listed as APP1042, APK10424 of 4 models qualify · AHRI 213607324	82.4(50 is the typical model of its size class) (higher)HO-SZ06-AB-Qwith ductless indoor unit HJ-UZ06-AB-Q7 of 10 models qualify · AHRI 211306397
Non-ducted, 2 tons	No models in this size class	86.1(50 is the typical model of its size class)HO-SZ24-AB-Qwith ductless indoor unit HC-UZ24-AB-Q1 of 2 models qualify · AHRI 214056565
Non-ducted, 2.5–3 tons	No models in this size class	87.0(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 tons	No models in this size class	80.5(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 type	EphocaAll-around score, best model	MitsutomoAll-around score, best model
Ducted, up to 1.5 tons	28.9(50 is the typical model of its size class)AVP1041Also listed as AVP1042, AVE1042, AVK1042, AXP1041 and 4 more26 of 26 models have all five ratings · AHRI 213607332	85.2(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 tons	No models in this size class	80.1(50 is the typical model of its size class)HO-SZ24-AB-Qwith ducted air handler HD-UZ24-AB-Q2 of 2 models have all five ratings · AHRI 214056569
Ducted, 2.5–3 tons	No models in this size class	83.7(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 tons	No models in this size class	82.0(50 is the typical model of its size class)HO-MP48-AB-Q6 of 6 models have all five ratings · AHRI 211306411
Non-ducted, up to 1.5 tons	25.1(50 is the typical model of its size class)APP1041with ductless indoor unit APP1041Also listed as APP1042, APK10424 of 4 models have all five ratings · AHRI 213607324	84.4(50 is the typical model of its size class) (higher)HO-SZ09-AB-Qwith ductless indoor unit HW-SZ09-AB-Q10 of 10 models have all five ratings · AHRI 211306393
Non-ducted, 2 tons	No models in this size class	70.7(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 tons	No models in this size class	76.8(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 tons	No models in this size class	73.8(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
Rating	Ephoca	Mitsutomo
COP at 5°F	beats 6% · 1.75APP1041Also listed as APP1042, APK1042Non-ducted, up to 1.5 tons	beats 87% · 2.01RO-SZ36-AB-QAlso listed as RO-SZ36-AC-QNon-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 68% · 81%APP1041Also listed as APP1042, APK1042Non-ducted, up to 1.5 tons	beats 96% · 101%HO-MT28-AC-QDucted, 2.5–3 tons
HSPF2	beats 73% · 9.9AVP1041Also listed as AVP1042, AVE1042, AVK1042, AXP1041 and 4 moreDucted, up to 1.5 tons	beats 99% · 10.3HO-SZ48-BB-QDucted, 3.5–4.5 tons
SEER2	beats 9% · 14.4AVP1041Also listed as AVP1042, AVE1042, AVK1042, AXP1041 and 4 moreDucted, up to 1.5 tons	beats 99% · 20.9HO-MP48-AB-QDucted, 3.5–4.5 tons
EER2	beats 34% · 11.2APP1041Also listed as APP1042, APK1042Non-ducted, up to 1.5 tons	beats 95% · 15.8HO-SZ09-AB-QNon-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 11% · 6,700 Btu/hAPP1041Also listed as APP1042, APK1042Non-ducted, up to 1.5 tons	beats 99% · 56,500 Btu/hHW-SZ60-BB-QNon-ducted, 3.5–4.5 tons

More comparisons

Pick any two manufacturers

Ephoca vs Mitsutomo heat pumps