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	48%median — · 22nd ranked	60%median — · 6th ranked
COP at 5°F	46%median 1.95 · 21st ranked	55%median 2.00 · 18th ranked
Capacity retention at 5°F	43%median 62% · 22nd ranked	54%median 71% · 13th ranked
HSPF2	44%median 8.1 · 21st ranked	66%median 10.0 · 6th ranked
SEER2	45%median 16.0 · 21st ranked	63%median 20.0 · 4th ranked
EER2	57%median 11.7 · 11th ranked	60%median 12.5 · 7th ranked
Heating capacity at 5°F	45%median 19,000 Btu/h · 22nd ranked	63%median 20,500 Btu/h · 6th ranked
Outdoor models	331	156
AHRI certifications	65,305	523

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)	43.8%145 models	80.8%126 models
CEE 2026 Tier 1 (Split ASHP)	41.4%137 models	80.8%126 models
CEE Advanced Tier (Split ASHP)	2.7%9 models	9.6%15 models
Xcel Energy Colorado cold-climate ASHP (2025)	35.6%118 models	66.7%104 models
DOE Cold Climate Heat Pump Challenge	2.7%9 models	9.6%15 models
ENERGY STAR Cold Climate	29.9%99 models	66%103 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	23 · index 59%	25 · index 62%
Ducted, 2 tons	48 · index 46%	10 · index 61%
Ducted, 2.5–3 tons	86 · index 45%	29 · index 62%
Ducted, 3.5–4.5 tons	100 · index 44%	29 · index 56%
Ducted, 5 tons and up	30 · index 46%	10 · index 54%
Non-ducted, up to 1.5 tons	44 · index 55%	60 · index 64%
Non-ducted, 2 tons	16 · index 57%	13 · index 61%
Non-ducted, 2.5–3 tons	16 · index 60%	21 · index 60%
Non-ducted, 3.5–4.5 tons	6 · index 51%	18 · index 54%
Non-ducted, 5 tons and up	4 · index 57%	6 · index 67%

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	86.6(50 is the typical model of its size class) (higher)A-VXP18SA-1with ducted air handler WXP18SA16 of 23 models qualify · AHRI 217482406	85.6(50 is the typical model of its size class)SUZ-AA15NLHZ***with ducted air handler PEAD-AA15NL10 of 24 models qualify · AHRI 215734918
Ducted, 2 tons	88.5(50 is the typical model of its size class) (higher)SL22KLV-024-230A**with ducted air handler CBK48MVT-042-230-27 of 51 models qualify · AHRI 216379010	78.7(50 is the typical model of its size class)PUZ-AK24NLHZ2***with ducted air handler PVA-AA24NL8 of 10 models qualify · AHRI 218697028
Ducted, 2.5–3 tons	93.4(50 is the typical model of its size class) (higher)SL22KLV-036-230A**with ducted air handler CBK48MVT-060-230-29 of 83 models qualify · AHRI 216776011	88.7(50 is the typical model of its size class)PUZ-AK30NLHZ2***with ducted air handler PVA-AA30NL20 of 30 models qualify · AHRI 218697041
Ducted, 3.5–4.5 tons	90.8(50 is the typical model of its size class) (higher)SL22KLV-060-230A**with indoor coil D(A,C,E)60D3J+TDR and furnace SLP99UH110XV60C27 of 99 models qualify · AHRI 217443918	80.2(50 is the typical model of its size class)MXZ-SM48NLHZ-**18 of 29 models qualify · AHRI 217135880
Ducted, 5 tons and up	83.7(50 is the typical model of its size class) (higher)VPD060H6M-5P5 of 31 models qualify · AHRI 216054512	78.1(50 is the typical model of its size class)MXZ-SM60NLHZ-**6 of 10 models qualify · AHRI 217643004
Non-ducted, up to 1.5 tons	96.7(50 is the typical model of its size class)A-VHP06SA-1with ductless indoor unit B-VHP06SA-131 of 44 models qualify · AHRI 216097104	97.5(50 is the typical model of its size class) (higher)MUZ-FX06NLHZ***with ductless indoor unit MSZ-FX06NLAlso listed as MUZ-FX06NLHZ243 of 60 models qualify · AHRI 215611124
Non-ducted, 2 tons	89.4(50 is the typical model of its size class) (higher)A-VHP24SA-1with ductless indoor unit B-VHP24CA-112 of 16 models qualify · AHRI 217482451	88.4(50 is the typical model of its size class)PUZ-AK24NLHZ2***with ductless indoor unit PLA-AE24NL10 of 13 models qualify · AHRI 218697024
Non-ducted, 2.5–3 tons	82.5(50 is the typical model of its size class)VPD036S6M-5P14 of 16 models qualify · AHRI 216054505	93.8(50 is the typical model of its size class) (higher)PUZ-AK30NLHZ2***with ductless indoor unit PLA-AE30NL12 of 21 models qualify · AHRI 218697037
Non-ducted, 3.5–4.5 tons	73.4(50 is the typical model of its size class)A-VHP486A-15 of 6 models qualify · AHRI 216097135	78.4(50 is the typical model of its size class) (higher)MXZ-SM48NLHZ***Also listed as PUMY-HL48NKMU, MXZ-SM48NLHZ-13 of 18 models qualify · AHRI 215685467
Non-ducted, 5 tons and up	84.1(50 is the typical model of its size class) (higher)VPD060H6M-5P4 of 4 models qualify · AHRI 216054508	70.0(50 is the typical model of its size class)MXZ-SM60NLHZ-**Also listed as PUMY-HL60NKMU6 of 6 models qualify · AHRI 217643003

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	86.5(50 is the typical model of its size class) (higher)A-VHP09SA-1with ducted air handler B-VHP09DA-123 of 23 models have all five ratings · AHRI 217482441	78.3(50 is the typical model of its size class)SUZ-AA15NLHZ***with ducted air handler PEAD-AA15NL21 of 22 models have all five ratings · AHRI 215734918
Ducted, 2 tons	89.9(50 is the typical model of its size class) (higher)A-ZHP24SA-1with ducted air handler B-ZHP24SA-147 of 47 models have all five ratings · AHRI 218027842	85.1(50 is the typical model of its size class)PUZ-AK24NLHZ2***with ducted air handler PVA-AA24NL12 of 12 models have all five ratings · AHRI 218697028
Ducted, 2.5–3 tons	95.0(50 is the typical model of its size class) (higher)SL22KLV-036-230A**with ducted air handler CBK48MVT-060-230-84 of 84 models have all five ratings · AHRI 216776011	93.9(50 is the typical model of its size class)PUZ-AK30NLHZ2***with ducted air handler PVA-AA30NL30 of 30 models have all five ratings · AHRI 218697041
Ducted, 3.5–4.5 tons	86.7(50 is the typical model of its size class) (higher)SL22KLV-048-230Awith indoor coil CK40[C,U]T-60C-+TDR and furnace SL280UH080NV60C97 of 97 models have all five ratings · AHRI 216776088	70.4(50 is the typical model of its size class)MXZ-SM48NLHZ-**29 of 29 models have all five ratings · AHRI 217135880
Ducted, 5 tons and up	84.6(50 is the typical model of its size class) (higher)VPD060H6M-5P36 of 36 models have all five ratings · AHRI 216054512	65.4(50 is the typical model of its size class)MXZ-SM60NLHZ-**10 of 10 models have all five ratings · AHRI 217643004
Non-ducted, up to 1.5 tons	96.2(50 is the typical model of its size class)A-VHP06SA-1with ductless indoor unit B-VHP06SA-140 of 44 models have all five ratings · AHRI 216097104	98.7(50 is the typical model of its size class) (higher)MUZ-FX06NLHZ***with ductless indoor unit MSZ-FX06NLAlso listed as MUZ-FX06NLHZ256 of 60 models have all five ratings · AHRI 215611124
Non-ducted, 2 tons	88.4(50 is the typical model of its size class) (higher)A-KZP24SA-1with ductless indoor unit B-KZP24SA-114 of 16 models have all five ratings · AHRI 218027843	87.9(50 is the typical model of its size class)PUZ-AK24NLHZ2***with ductless indoor unit PLA-AE24NL12 of 13 models have all five ratings · AHRI 218697024
Non-ducted, 2.5–3 tons	78.8(50 is the typical model of its size class)VPD036S6M-5P15 of 16 models have all five ratings · AHRI 216054505	92.8(50 is the typical model of its size class) (higher)PUZ-AK30NLHZ2***with ductless indoor unit PLA-AE30NL20 of 21 models have all five ratings · AHRI 218697037
Non-ducted, 3.5–4.5 tons	75.6(50 is the typical model of its size class)A-VHP486A-16 of 6 models have all five ratings · AHRI 216097133	85.9(50 is the typical model of its size class) (higher)MXZ-SM48NLHZ***Also listed as PUMY-HL48NKMU, MXZ-SM48NLHZ-18 of 18 models have all five ratings · AHRI 215685467
Non-ducted, 5 tons and up	91.6(50 is the typical model of its size class) (higher)VPD060H6M-5P4 of 4 models have all five ratings · AHRI 216054508	68.7(50 is the typical model of its size class)MXZ-SM60NLHZ-**Also listed as PUMY-HL60NKMU6 of 6 models have all five ratings · AHRI 217643003

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% · 4.067HP14F30P-**ADucted, 2.5–3 tons	beats 100% · 2.70PUZ-AK42NL***Non-ducted, 3.5–4.5 tons
Capacity retention at 5°F	beats 100% · 150%A-ZHP06SA-1Non-ducted, up to 1.5 tons	beats 99% · 140%MUZ-FX06NLHZ***Also listed as MUZ-FX06NLHZ2Non-ducted, up to 1.5 tons
HSPF2	beats 100% · 15.6A-ZHP06SA-1Non-ducted, up to 1.5 tons	beats 100% · 12.0MXZ-SM36NLHZ***Also listed as PUMY-HL36NKMU, MXZ-SM36NLHZ-Non-ducted, 2.5–3 tons
SEER2	beats 100% · 27.0A-ZHP15SA-1Ducted, up to 1.5 tons	beats 100% · 35.0MUZ-FX06NLHZ***Also listed as MUZ-FX06NLHZ2Non-ducted, up to 1.5 tons
EER2	beats 100% · 15.0EL16KP1-018-230A**Also listed as ML14KP1-018-230ADucted, up to 1.5 tons	beats 100% · 21.5MUZ-FX06NLHZ***Also listed as MUZ-FX06NLHZ2Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 100% · 54,000 Btu/hMMLD024S6S-1PNon-ducted, 2 tons	beats 100% · 26,600 Btu/hMUZ-FX24NLHZ***Also listed as MUZ-FX24NLHZ2Non-ducted, up to 1.5 tons

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Lennox vs Mitsubishi Electric heat pumps