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.

Lennox and Mitsubishi Electric 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, Mitsubishi Electric scores higher on 6 of the 6 ratings.

Lennox
Mitsubishi Electric
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Lennox	Mitsubishi Electric
Efficiency index	56%median — · 13th ranked	65%median — · 3rd ranked
COP at 5°F	58%median 2.00 · 10th ranked	67%median 2.08 · 6th ranked
Capacity retention at 5°F	48%median 67% · 19th ranked	55%median 73% · 15th ranked
HSPF2	49%median 8.5 · 17th ranked	72%median 10.0 · 1st ranked
SEER2	49%median 17.0 · 17th ranked	63%median 20.2 · 5th ranked
EER2	54%median 11.6 · 14th ranked	65%median 12.8 · 3rd ranked
Heating capacity at 5°F	48%median 18,560 Btu/h · 18th ranked	59%median 18,650 Btu/h · 6th ranked
Outdoor models	313	373
AHRI certifications	75,630	1,233

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Lennox	Mitsubishi Electric
CEE 2025 Tier 1 (Split ASHP)	46%144 models	67.8%253 models
CEE 2026 Tier 1 (Split ASHP)	45%141 models	66.5%248 models
CEE Advanced Tier (Split ASHP)	1%3 models	6.4%24 models
Xcel Energy Colorado cold-climate ASHP (2025)	29.4%92 models	53.6%200 models
DOE Cold Climate Heat Pump Challenge	1%3 models	6.4%24 models
ENERGY STAR Cold Climate	19.8%62 models	37.3%139 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 · 10 groups where both have models

Lennox
Mitsubishi Electric
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	Lennox	Mitsubishi Electric
Ducted, up to 1.5 tons	31 · index 60%	56 · index 63%
Ducted, 2 tons	35 · index 58%	33 · index 56%
Ducted, 2.5–3 tons	72 · index 55%	82 · index 66%
Ducted, 3.5–4.5 tons	86 · index 57%	48 · index 59%
Ducted, 5 tons and up	13 · index 45%	8 · index 68%
Non-ducted, up to 1.5 tons	66 · index 54%	146 · index 65%
Non-ducted, 2 tons	22 · index 57%	33 · index 68%
Non-ducted, 2.5–3 tons	37 · index 55%	64 · index 69%
Non-ducted, 3.5–4.5 tons	16 · index 57%	46 · index 74%
Non-ducted, 5 tons and up	1 · index 36%	10 · index 60%

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	LennoxCold-climate score, best model	Mitsubishi ElectricCold-climate score, best model
Ducted, up to 1.5 tons	77.6(50 is the typical model of its size class) (higher)MPC009S4S-1Pwith ducted air handler MMDB009S4-*PAlso sold as AirEase 4DHPS209S-1P21 of 31 models qualify · AHRI 211034423	77.0(50 is the typical model of its size class)SUZ-KA12NAHZ*with ducted air handler TPEADA0121AA90AAlso listed as NTXSKH12A11212 of 56 models qualify · AHRI 213362139
Ducted, 2 tons	81.1(50 is the typical model of its size class) (higher)MPC024S4S-1Pwith ducted air handler MMDB024S4-*PAlso sold as AirEase 4DHP2S24S-1P17 of 34 models qualify · AHRI 211034426	70.6(50 is the typical model of its size class)TRUZH0241HA****with ducted air handler TPEADA0241AA90AAlso listed as PUZ-HA24NHA16 of 32 models qualify · AHRI 213362163
Ducted, 2.5–3 tons	83.4(50 is the typical model of its size class)MLB036S4S-1Pwith ducted air handler MMDB036S4-2PAlso listed as MLB036S4S-2P23 of 74 models qualify · AHRI 205782160	88.1(50 is the typical model of its size class) (higher)NTXSKS30A112**with ducted air handler PEAD-A30AAAlso listed as SUZ-KA30NA244 of 83 models qualify · AHRI 207702771
Ducted, 3.5–4.5 tons	88.9(50 is the typical model of its size class) (higher)MLB048S4S-1Pwith ducted air handler MMDB048S4-2P18 of 85 models qualify · AHRI 205782161	79.2(50 is the typical model of its size class)MXZ-SM42NAMHZAlso sold as Trane / Mitsubishi Electric NTXMSH42A152A29 of 48 models qualify · AHRI 207517155
Ducted, 5 tons and up	None on this board (0 of 13 models qualify)	72.8(50 is the typical model of its size class)MXZ-SM60NAM***5 of 8 models qualify · AHRI 213248843
Non-ducted, up to 1.5 tons	90.2(50 is the typical model of its size class)MPC009S4S-1Pwith ductless indoor unit MWMC006S4-2P34 of 66 models qualify · AHRI 213199199	97.3(50 is the typical model of its size class) (higher)NAXSPH06B112A*with ductless indoor unit NAXWPH06B112AA77 of 146 models qualify · AHRI 206195819
Non-ducted, 2 tons	86.1(50 is the typical model of its size class) (higher)MLB024S4S-1Pwith ductless indoor unit M33C024S4-1PAlso sold as Comfort-Aire A-VMH24SV-114 of 22 models qualify · AHRI 207683534	74.6(50 is the typical model of its size class)MXZ-3C24NAHZ4-**Also sold as American Standard / Mitsubishi Electric NTXMPH24A132C21 of 33 models qualify · AHRI 212925537
Non-ducted, 2.5–3 tons	90.9(50 is the typical model of its size class) (higher)A-VMH36QV-1A12 of 37 models qualify · AHRI 214377756	89.8(50 is the typical model of its size class)PUMY-HP36NKMU1Also sold as Trane / Mitsubishi Electric NTXMSH36A142A; also listed as MXZ-SM36NAMHZ31 of 64 models qualify · AHRI 204834272
Non-ducted, 3.5–4.5 tons	81.3(50 is the typical model of its size class)MLB048S4S-2Pwith ductless indoor unit M33C048S4-*P8 of 16 models qualify · AHRI 211034460	90.4(50 is the typical model of its size class) (higher)PUMY-HP48NKMU1Also sold as Trane / Mitsubishi Electric NTXMSH48A182A; also listed as MXZ-SM48NAMHZ27 of 46 models qualify · AHRI 204834275
Non-ducted, 5 tons and up	None on this board (0 of 1 models qualify)	60.2(50 is the typical model of its size class)MXZ-SM60NAM***Also sold as Trane / Mitsubishi Electric NTXMSM60A182A7 of 10 models qualify · AHRI 213248844

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	LennoxAll-around score, best model	Mitsubishi ElectricAll-around score, best model
Ducted, up to 1.5 tons	85.6(50 is the typical model of its size class)MLB009S4S-1Pwith ducted air handler MMDB009S4-2P30 of 31 models have all five ratings · AHRI 207683524	88.0(50 is the typical model of its size class) (higher)SUZ-KA12NAHZ*with ducted air handler TPEADA0121AA90AAlso listed as NTXSKH12A11249 of 56 models have all five ratings · AHRI 213362139
Ducted, 2 tons	84.1(50 is the typical model of its size class) (higher)EL22XPV-024-230Awith ducted air handler CBK47UHET-030-230-0Also sold as Armstrong Air 4SHP22LX124P-A29 of 35 models have all five ratings · AHRI 214861258	79.7(50 is the typical model of its size class)NTXSKS24A112**with ducted air handler TPEADA0241AA90AAlso listed as SUZ-KA24NA27 of 33 models have all five ratings · AHRI 213362277
Ducted, 2.5–3 tons	83.7(50 is the typical model of its size class)A-VMH36QV-1A47 of 69 models have all five ratings · AHRI 214377757	87.2(50 is the typical model of its size class) (higher)PUZ-HA36NKA1***with ducted air handler PVA-A36AAAlso sold as Trane / Mitsubishi Electric PUZ-HA36NKA, Trane / Mitsubishi Electric TRUZH0361KA00, Trane / Mitsubishi Electric TRUZH0361KA00NA, Trane / Mitsubishi Electric TRUZH0361KA1069 of 82 models have all five ratings · AHRI 213617710
Ducted, 3.5–4.5 tons	87.7(50 is the typical model of its size class) (higher)SL25XPV-048-230A*with ducted air handler CBA38MV-048-230+TDR49 of 84 models have all five ratings · AHRI 207436541	72.3(50 is the typical model of its size class)TRUZA0421KA70**with ducted air handler PEAD-A42AAAlso listed as PUZ-A42NKA735 of 48 models have all five ratings · AHRI 206720345
Ducted, 5 tons and up	68.9(50 is the typical model of its size class)4HP17L60P-**Awith ducted air handler L(E,G)M60H412 of 18 models have all five ratings · AHRI 212431768	78.5(50 is the typical model of its size class) (higher)PUMY-P60NKMU36 of 8 models have all five ratings · AHRI 204834217
Non-ducted, up to 1.5 tons	92.4(50 is the typical model of its size class)MPC009S4S-1Pwith ductless indoor unit MWMC006S4-2P59 of 66 models have all five ratings · AHRI 213199199	98.6(50 is the typical model of its size class) (higher)NAXSPH06B112A*with ductless indoor unit NAXWPH06B112AA125 of 146 models have all five ratings · AHRI 206195819
Non-ducted, 2 tons	84.3(50 is the typical model of its size class) (higher)MLB024S4S-1Pwith ductless indoor unit MWMC024S4-1PAlso sold as Comfort-Aire A-VMH24SV-1, Comfort-Aire A-VMH24SU-1, Comfort-Aire A-KMH24SU-120 of 22 models have all five ratings · AHRI 207683523	82.0(50 is the typical model of its size class)TRUZH0241HA10**with ductless indoor unit PLA-A24EA27 of 33 models have all five ratings · AHRI 206720350
Non-ducted, 2.5–3 tons	86.4(50 is the typical model of its size class)A-VMH36QV-1A27 of 37 models have all five ratings · AHRI 214377756	90.7(50 is the typical model of its size class) (higher)PUMY-HP36NKMU1Also sold as Trane / Mitsubishi Electric NTXMSH36A142A; also listed as MXZ-SM36NAMHZ54 of 64 models have all five ratings · AHRI 204834272
Non-ducted, 3.5–4.5 tons	77.9(50 is the typical model of its size class)MLB048S4M-2PAlso sold as Comfort-Aire A-VMH48PV-1, Allied 4DHP2S48M-1P11 of 16 models have all five ratings · AHRI 207699107	91.7(50 is the typical model of its size class) (higher)PUMY-HP48NKMU1Also sold as Trane / Mitsubishi Electric NTXMSH48A182A; also listed as MXZ-SM48NAMHZ33 of 46 models have all five ratings · AHRI 204834275
Non-ducted, 5 tons and up	36.2(50 is the typical model of its size class)GMV-60WL/C-T(U)1 of 1 models have all five ratings · AHRI 214728288	66.1(50 is the typical model of its size class) (higher)PUMY-P60NKMU38 of 10 models have all five ratings · AHRI 204834276

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	Lennox	Mitsubishi Electric
COP at 5°F	beats 100% · 3.194HP18V36PDucted, 2 tons	beats 100% · 2.90PUZ-A30NHA7***Also sold as Trane / Mitsubishi Electric TRUZA0301HA70Non-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 100% · 147%4HP17L18P-**ADucted, up to 1.5 tons	beats 100% · 88%MXZ-SM60NAM***Ducted, 5 tons and up
HSPF2	beats 99% · 10.3MLB048S4S-1PDucted, 3.5–4.5 tons	beats 100% · 12.0PUMY-HP36NKMU1Also sold as Trane / Mitsubishi Electric NTXMSH36A142A; also listed as MXZ-SM36NAMHZNon-ducted, 2.5–3 tons
SEER2	beats 100% · 21.8SL25XPV-048-230A**Ducted, 3.5–4.5 tons	beats 100% · 32.2MUZ-FH06NAHNon-ducted, up to 1.5 tons
EER2	beats 100% · 15.0SL25XPV-024-230A**Ducted, 2 tons	beats 100% · 19.1NAXSPH06B112A*Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 100% · 42,926 Btu/hMLB036S4S-2PNon-ducted, 2.5–3 tons	beats 100% · 57,000 Btu/hMXZ-SM60NAM***Ducted, 5 tons and up

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Lennox vs Mitsubishi Electric heat pumps