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 Trane 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, Lennox scores higher on 3 of the 6 ratings.

Lennox
Trane
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Lennox	Trane
Efficiency index	48%median — · 22nd ranked	50%median — · 20th ranked
COP at 5°F	46%median 1.95 · 21st ranked	68%median 2.24 · 1st ranked
Capacity retention at 5°F	43%median 62% · 22nd ranked	43%median 65% · 24th ranked
HSPF2	44% (higher)median 8.1 · 21st ranked	36% (higher)median 7.5 · 27th ranked
SEER2	45% (higher)median 16.0 · 21st ranked	40% (higher)median 15.5 · 25th ranked
EER2	57%median 11.7 · 11th ranked	66%median 11.7 · 3rd ranked
Heating capacity at 5°F	45% (higher)median 19,000 Btu/h · 22nd ranked	44% (higher)median 21,800 Btu/h · 25th ranked
Outdoor models	331	363
AHRI certifications	65,305	84,774

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Lennox	Trane
CEE 2025 Tier 1 (Split ASHP)	43.8%145 models	38.6%140 models
CEE 2026 Tier 1 (Split ASHP)	41.4%137 models	36.6%133 models
CEE Advanced Tier (Split ASHP)	2.7%9 models	2.5%9 models
Xcel Energy Colorado cold-climate ASHP (2025)	35.6%118 models	25.6%93 models
DOE Cold Climate Heat Pump Challenge	2.7%9 models	2.5%9 models
ENERGY STAR Cold Climate	29.9%99 models	17.9%65 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
Trane
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	Trane
Ducted, up to 1.5 tons	23 · index 59%	18 · index 46%
Ducted, 2 tons	48 · index 46%	42 · index 44%
Ducted, 2.5–3 tons	86 · index 45%	102 · index 49%
Ducted, 3.5–4.5 tons	100 · index 44%	131 · index 53%
Ducted, 5 tons and up	30 · index 46%	46 · index 49%
Non-ducted, up to 1.5 tons	44 · index 55%	15 · index 53%
Non-ducted, 2 tons	16 · index 57%	4 · index 42%
Non-ducted, 2.5–3 tons	16 · index 60%	7 · index 56%
Non-ducted, 3.5–4.5 tons	6 · index 51%	3 · index 63%
Non-ducted, 5 tons and up	4 · index 57%	2 · index 68%

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	TraneCold-climate score, best model
Ducted, up to 1.5 tons	86.6(50 is the typical model of its size class)A-VXP18SA-1with ducted air handler WXP18SA16 of 23 models qualify · AHRI 217482406	92.5(50 is the typical model of its size class) (higher)5TWV0X24A1with indoor coil D(A,C,E)36C3J+TDR and furnace S8V2B060M4PCB5 of 20 models qualify · AHRI 216794262
Ducted, 2 tons	88.5(50 is the typical model of its size class)SL22KLV-024-230A**with ducted air handler CBK48MVT-042-230-27 of 51 models qualify · AHRI 216379010	90.0(50 is the typical model of its size class) (higher)5TCV0X36A1with ducted air handler 5TEMCD04AV31+TDRAlso sold as American Standard 5A5V0X36A115 of 40 models qualify · AHRI 218792275
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	84.6(50 is the typical model of its size class)5TWV8X36A1with indoor coil D(A,C,E)36C3J+TDR and furnace S8V2C080M5PCB24 of 102 models qualify · AHRI 216797087
Ducted, 3.5–4.5 tons	90.8(50 is the typical model of its size class)SL22KLV-060-230A**with indoor coil D(A,C,E)60D3J+TDR and furnace SLP99UH110XV60C27 of 99 models qualify · AHRI 217443918	92.9(50 is the typical model of its size class) (higher)5TWV0X48A1with indoor coil D(A,C,E)60B4J+TDR and furnace S9V2D120U5PSC+LRP38 of 131 models qualify · AHRI 216794596
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	81.1(50 is the typical model of its size class)3TXK2260AF00HAAAlso listed as 3TVHS060SF000AA2 of 46 models qualify · AHRI 218451025
Non-ducted, up to 1.5 tons	96.7(50 is the typical model of its size class) (higher)A-VHP06SA-1with ductless indoor unit B-VHP06SA-131 of 44 models qualify · AHRI 216097104	68.6(50 is the typical model of its size class)M5THM2318A12NA*15 of 15 models qualify · AHRI 218067082
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	37.7(50 is the typical model of its size class)M5THS2324A11NAAwith ductless indoor unit M5MHWUN24A1N0AAAlso listed as M5THS2324A11NA4 of 4 models qualify · AHRI 215385437
Non-ducted, 2.5–3 tons	82.5(50 is the typical model of its size class) (higher)VPD036S6M-5P14 of 16 models qualify · AHRI 216054505	73.8(50 is the typical model of its size class)3TVHS036SF000AAAlso listed as 3TXK2224AF00HAA, 3TXK2236AF00HAA5 of 7 models qualify · AHRI 218451026
Non-ducted, 3.5–4.5 tons	73.4(50 is the typical model of its size class) (higher)A-VHP486A-15 of 6 models qualify · AHRI 216097135	67.2(50 is the typical model of its size class)3TVHS048SF000AAAlso listed as 3TXK2248AF00HAA3 of 3 models qualify · AHRI 218451027
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	64.1(50 is the typical model of its size class)3TVHS060SF000AAAlso listed as 3TXK2260AF00HAA2 of 2 models qualify · AHRI 218451028

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	TraneAll-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	84.4(50 is the typical model of its size class)5TWV0X24A1with indoor coil D(A,C,E)36C3J+TDR and furnace *UHMB060CCV3+LRP17 of 17 models have all five ratings · AHRI 216794699
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	86.7(50 is the typical model of its size class)5TCV0X36A1with ducted air handler 5TEMCD04AV31+TDRAlso sold as American Standard 5A5V0X36A131 of 31 models have all five ratings · AHRI 218792275
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	88.5(50 is the typical model of its size class)5TWV0X36A1with indoor coil 5PX*D010AS3 and furnace S8V2D120M5PDBAlso sold as American Standard 5A6V0X36A171 of 107 models have all five ratings · AHRI 216453109
Ducted, 3.5–4.5 tons	86.7(50 is the typical model of its size class)SL22KLV-048-230Awith indoor coil CK40[C,U]T-60C-+TDR and furnace SL280UH080NV60C97 of 97 models have all five ratings · AHRI 216776088	88.8(50 is the typical model of its size class) (higher)5TWV0X48A1with indoor coil D(A,C,E)60B4J+TDR and furnace L8V1C100U5VSB+LRP102 of 138 models have all five ratings · AHRI 216794476
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	74.7(50 is the typical model of its size class)3TXK2260AF00HAAAlso listed as 3TVHS060SF000AA9 of 46 models have all five ratings · AHRI 218451025
Non-ducted, up to 1.5 tons	96.2(50 is the typical model of its size class) (higher)A-VHP06SA-1with ductless indoor unit B-VHP06SA-140 of 44 models have all five ratings · AHRI 216097104	72.2(50 is the typical model of its size class)M5THM2318A12NA*15 of 15 models have all five ratings · AHRI 218067082
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	48.8(50 is the typical model of its size class)M5THS2324A11NAAwith ductless indoor unit M5MHWUN24A1N0AAAlso listed as M5THS2324A11NA4 of 4 models have all five ratings · AHRI 215385437
Non-ducted, 2.5–3 tons	78.8(50 is the typical model of its size class) (higher)VPD036S6M-5P15 of 16 models have all five ratings · AHRI 216054505	76.2(50 is the typical model of its size class)3TVHS036SF000AAAlso listed as 3TXK2224AF00HAA, 3TXK2236AF00HAA7 of 7 models have all five ratings · AHRI 218451026
Non-ducted, 3.5–4.5 tons	75.6(50 is the typical model of its size class) (higher)A-VHP486A-16 of 6 models have all five ratings · AHRI 216097133	73.9(50 is the typical model of its size class)3TVHS048SF000AAAlso listed as 3TXK2248AF00HAA3 of 3 models have all five ratings · AHRI 218451027
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	67.9(50 is the typical model of its size class)3TVHS060SF000AAAlso listed as 3TXK2260AF00HAA2 of 2 models have all five ratings · AHRI 218451028

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	Trane
COP at 5°F	beats 100% · 4.067HP14F30P-**ADucted, 2.5–3 tons	beats 100% · 3.205TWR4036A1Ducted, 2.5–3 tons
Capacity retention at 5°F	beats 100% · 150%A-ZHP06SA-1Non-ducted, up to 1.5 tons	beats 100% · 136%5A6H7036A1Ducted, 2.5–3 tons
HSPF2	beats 100% · 15.6A-ZHP06SA-1Non-ducted, up to 1.5 tons	beats 100% · 13.53TXK2224AF00HAAAlso listed as 3TXK2236AF00HAA, 3TVHS036SF000AADucted, 2.5–3 tons
SEER2	beats 100% · 27.0A-ZHP15SA-1Ducted, up to 1.5 tons	beats 99% · 21.65TWV0X36A1Also sold as American Standard 5A6V0X36A1Ducted, 2.5–3 tons
EER2	beats 100% · 15.0EL16KP1-018-230A**Also listed as ML14KP1-018-230ADucted, up to 1.5 tons	beats 99% · 14.43TVHS036SF000AAAlso listed as 3TXK2224AF00HAA, 3TXK2236AF00HAANon-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 100% · 54,000 Btu/hMMLD024S6S-1PNon-ducted, 2 tons	beats 100% · 27,200 Btu/h5TWV0X24A1Ducted, up to 1.5 tons

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Lennox vs Trane heat pumps