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.

Gree and Lennox 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, Gree scores higher on 4 of the 6 ratings.

Gree
Lennox
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 9, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Gree	Lennox
Efficiency index	54% (higher)median — · 12th ranked	48% (higher)median — · 22nd ranked
COP at 5°F	43%median 1.94 · 25th ranked	46%median 1.95 · 21st ranked
Capacity retention at 5°F	57% (higher)median 77% · 10th ranked	43% (higher)median 62% · 22nd ranked
HSPF2	42%median 9.0 · 24th ranked	44%median 8.1 · 21st ranked
SEER2	60% (higher)median 20.5 · 7th ranked	45% (higher)median 16.0 · 21st ranked
EER2	60% (higher)median 12.0 · 6th ranked	57% (higher)median 11.7 · 11th ranked
Heating capacity at 5°F	55% (higher)median 16,950 Btu/h · 13th ranked	45% (higher)median 19,000 Btu/h · 22nd ranked
Outdoor models	717	331
AHRI certifications	5,173	65,305

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Gree	Lennox
CEE 2025 Tier 1 (Split ASHP)	80.9%580 models	43.8%145 models
CEE 2026 Tier 1 (Split ASHP)	79.8%572 models	41.4%137 models
CEE Advanced Tier (Split ASHP)	5.6%40 models	2.7%9 models
Xcel Energy Colorado cold-climate ASHP (2025)	80.1%574 models	35.6%118 models
DOE Cold Climate Heat Pump Challenge	5.6%40 models	2.7%9 models
ENERGY STAR Cold Climate	66.1%474 models	29.9%99 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

Gree
Lennox
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 9, 2026

Models per peer group · efficiency index within the group
Size and duct type	Gree	Lennox
Ducted, up to 1.5 tons	96 · index 66%	23 · index 59%
Ducted, 2 tons	68 · index 57%	48 · index 46%
Ducted, 2.5–3 tons	120 · index 54%	86 · index 45%
Ducted, 3.5–4.5 tons	120 · index 58%	100 · index 44%
Ducted, 5 tons and up	4 · index 60%	30 · index 46%
Non-ducted, up to 1.5 tons	314 · index 51%	44 · index 55%
Non-ducted, 2 tons	82 · index 55%	16 · index 57%
Non-ducted, 2.5–3 tons	81 · index 47%	16 · index 60%
Non-ducted, 3.5–4.5 tons	47 · index 47%	6 · index 51%
Non-ducted, 5 tons and up	3 · index 65%	4 · index 57%

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	GreeCold-climate score, best model	LennoxCold-climate score, best model
Ducted, up to 1.5 tons	85.5(50 is the typical model of its size class)SPHP-Z-V018BBwith ducted air handler AIRH-Z-V018V06C88 of 95 models qualify · AHRI 216497962	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
Ducted, 2 tons	77.1(50 is the typical model of its size class)MHPC-H-024BSBwith ducted air handler MDUC-H-024BBB73 of 84 models qualify · AHRI 216497934	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
Ducted, 2.5–3 tons	77.4(50 is the typical model of its size class)SPHP-Z-V036BBwith ducted air handler AIRH-Z-V036V12C62 of 105 models qualify · AHRI 216497965	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
Ducted, 3.5–4.5 tons	88.7(50 is the typical model of its size class)GUD60W2/NHE-D(U)with ducted air handler HND60A/NHA-O79 of 120 models qualify · AHRI 218043371	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
Ducted, 5 tons and up	69.3(50 is the typical model of its size class)TMV-V60WL/NHC-T(U)2 of 4 models qualify · AHRI 216772306	83.7(50 is the typical model of its size class) (higher)VPD060H6M-5P5 of 31 models qualify · AHRI 216054512
Non-ducted, up to 1.5 tons	89.5(50 is the typical model of its size class)MHPC-H-009BSBwith ductless indoor unit MCON-H-009BBB296 of 314 models qualify · AHRI 216497938	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
Non-ducted, 2 tons	84.5(50 is the typical model of its size class)MHPC-H-024BSBwith ductless indoor unit MWAL-H-024BBB68 of 82 models qualify · AHRI 216497919	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
Non-ducted, 2.5–3 tons	77.2(50 is the typical model of its size class)GWHD(36)ND6MOAlso sold as Tosot TM36H32MO, Kinghome KM36X6O, Tosot MZ-COSMO36/O, Tosot TM36D6MO and 6 more; also listed as MUL36HP230V1R32AO, GS4M36HP230V1MO, GWHD(36)ND6CO74 of 81 models qualify · AHRI 214931589	82.5(50 is the typical model of its size class) (higher)VPD036S6M-5P14 of 16 models qualify · AHRI 216054505
Non-ducted, 3.5–4.5 tons	66.5(50 is the typical model of its size class)GWHD(42)ND6MOAlso sold as Tosot TM42H32MO, Kinghome KM42X6O, Tosot TM42D6MO, Tosot TMSCI7H4R42 and 5 more; also listed as MUL42HP230V1R32AO, GS5M42HP230V1MO31 of 47 models qualify · AHRI 214931590	73.4(50 is the typical model of its size class) (higher)A-VHP486A-15 of 6 models qualify · AHRI 216097135
Non-ducted, 5 tons and up	53.2(50 is the typical model of its size class)GMV-V60WL/NHC-T(U)Also sold as Tosot TMV-V60WL/NHC-T(U)2 of 3 models qualify · AHRI 216772249	84.1(50 is the typical model of its size class) (higher)VPD060H6M-5P4 of 4 models qualify · AHRI 216054508

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	GreeAll-around score, best model	LennoxAll-around score, best model
Ducted, up to 1.5 tons	83.7(50 is the typical model of its size class)GS09HP230V1PUOwith ducted air handler GS09HP230V1DAI95 of 95 models have all five ratings · AHRI 218636377	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
Ducted, 2 tons	82.9(50 is the typical model of its size class)A7CP21V24P-**Awith ducted air handler 7AH2AE24PX-75 of 75 models have all five ratings · AHRI 217465953	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
Ducted, 2.5–3 tons	79.8(50 is the typical model of its size class)A7CP21V36P-**Awith ducted air handler 7AH1AV42PX-113 of 113 models have all five ratings · AHRI 217465906	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
Ducted, 3.5–4.5 tons	85.1(50 is the typical model of its size class)MHPC-H-048BMB120 of 120 models have all five ratings · AHRI 216497951	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
Ducted, 5 tons and up	66.7(50 is the typical model of its size class)BH714S60P-**Awith ducted air handler BAH7V60PT-5 of 5 models have all five ratings · AHRI 216371303	84.6(50 is the typical model of its size class) (higher)VPD060H6M-5P36 of 36 models have all five ratings · AHRI 216054512
Non-ducted, up to 1.5 tons	92.6(50 is the typical model of its size class)MHPC-H-009BSBwith ductless indoor unit MCON-H-009BBB310 of 314 models have all five ratings · AHRI 216497938	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
Non-ducted, 2 tons	86.8(50 is the typical model of its size class)MHPC-H-024BSBwith ductless indoor unit MWAL-H-024BBB78 of 82 models have all five ratings · AHRI 216497919	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
Non-ducted, 2.5–3 tons	75.1(50 is the typical model of its size class)GMV-V36WL/NHC-T(U)Also sold as Tosot TMV-V36WL/NHC-T(U)81 of 81 models have all five ratings · AHRI 217123443	78.8(50 is the typical model of its size class) (higher)VPD036S6M-5P15 of 16 models have all five ratings · AHRI 216054505
Non-ducted, 3.5–4.5 tons	68.6(50 is the typical model of its size class)MHPC-H-048BMB45 of 47 models have all five ratings · AHRI 216497952	75.6(50 is the typical model of its size class) (higher)A-VHP486A-16 of 6 models have all five ratings · AHRI 216097133
Non-ducted, 5 tons and up	68.8(50 is the typical model of its size class)GMV-V60WL/NHC-T(U)Also sold as Tosot TMV-V60WL/NHC-T(U)3 of 3 models have all five ratings · AHRI 216772249	91.6(50 is the typical model of its size class) (higher)VPD060H6M-5P4 of 4 models have all five ratings · AHRI 216054508

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	Gree	Lennox
COP at 5°F	beats 99% · 2.40GMV-V36WL/NHC-T(U)Also sold as Tosot TMV-V36WL/NHC-T(U)Non-ducted, 2.5–3 tons	beats 100% · 4.067HP14F30P-**ADucted, 2.5–3 tons
Capacity retention at 5°F	beats 99% · 126%GK-H02TC/NHA-D(U)Also sold as Ac Pro PKHP-X-024VBC, Tosot TK-H02TC/NHA-D(U)Ducted, 2 tons	beats 100% · 150%A-ZHP06SA-1Non-ducted, up to 1.5 tons
HSPF2	beats 98% · 10.8SPHP-Z-V030BBDucted, 2.5–3 tons	beats 100% · 15.6A-ZHP06SA-1Non-ducted, up to 1.5 tons
SEER2	beats 100% · 24.5GWH18AVEXF-D6DNA1A/OAlso sold as Kinghome KW18XQ29SDO, Tosot TW18HAY32A1DO, Tosot TW18HAY32A1DOC, Tosot TWH18AD32AO and 1 more; also listed as GWH18AVEXF-D6DNA1B/ODucted, up to 1.5 tons	beats 100% · 27.0A-ZHP15SA-1Ducted, up to 1.5 tons
EER2	beats 100% · 14.5BH714S18P-**ADucted, up to 1.5 tons	beats 100% · 15.0EL16KP1-018-230A**Also listed as ML14KP1-018-230ADucted, up to 1.5 tons
Heating capacity at 5°F	beats 99% · 30,300 Btu/hGK-H02TC/NHA-D(U)Also sold as Ac Pro PKHP-X-024VBC, Tosot TK-H02TC/NHA-D(U)Ducted, 2 tons	beats 100% · 54,000 Btu/hMMLD024S6S-1PNon-ducted, 2 tons

More comparisons

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Gree vs Lennox heat pumps