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 Rheem 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
Rheem
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Gree	Rheem
Efficiency index	54% (higher)median — · 12th ranked	49% (higher)median — · 21st ranked
COP at 5°F	43%median 1.94 · 25th ranked	59%median 2.08 · 10th ranked
Capacity retention at 5°F	57% (higher)median 77% · 10th ranked	48% (higher)median 66% · 18th ranked
HSPF2	42%median 9.0 · 24th ranked	43%median 7.5 · 23rd ranked
SEER2	60% (higher)median 20.5 · 7th ranked	42% (higher)median 15.2 · 23rd ranked
EER2	60% (higher)median 12.0 · 6th ranked	40% (higher)median 10.6 · 25th ranked
Heating capacity at 5°F	55% (higher)median 16,950 Btu/h · 13th ranked	49% (higher)median 19,600 Btu/h · 18th ranked
Outdoor models	717	341
AHRI certifications	5,173	25,744

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Gree	Rheem
CEE 2025 Tier 1 (Split ASHP)	80.9%580 models	35.5%121 models
CEE 2026 Tier 1 (Split ASHP)	79.8%572 models	33.7%115 models
CEE Advanced Tier (Split ASHP)	5.6%40 models	1.8%6 models
Xcel Energy Colorado cold-climate ASHP (2025)	80.1%574 models	33.7%115 models
DOE Cold Climate Heat Pump Challenge	5.6%40 models	1.8%6 models
ENERGY STAR Cold Climate	66.1%474 models	33.4%114 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
Rheem
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	Rheem
Ducted, up to 1.5 tons	96 · index 66%	33 · index 55%
Ducted, 2 tons	68 · index 57%	35 · index 42%
Ducted, 2.5–3 tons	120 · index 54%	90 · index 46%
Ducted, 3.5–4.5 tons	120 · index 58%	121 · index 49%
Ducted, 5 tons and up	4 · index 60%	31 · index 43%
Non-ducted, up to 1.5 tons	314 · index 51%	38 · index 58%
Non-ducted, 2 tons	82 · index 55%	9 · index 53%
Non-ducted, 2.5–3 tons	81 · index 47%	18 · index 54%
Non-ducted, 3.5–4.5 tons	47 · index 47%	12 · index 49%
Non-ducted, 5 tons and up	3 · index 65%	2 · index 43%

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	RheemCold-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	93.5(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ducted air handler ML06HP230LSDUC-I20 of 33 models qualify · AHRI 215864373
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	85.7(50 is the typical model of its size class) (higher)ML24HP230NEXH-Owith ducted air handler ML24HP230HSDUC-I16 of 34 models qualify · AHRI 215864380
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	94.4(50 is the typical model of its size class) (higher)RD18AY36AJVCwith ducted air handler L(E,G)M36FJ28 of 90 models qualify · AHRI 218029736
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	95.2(50 is the typical model of its size class) (higher)RD18AY48AJVCwith indoor coil D(A,C,E)60B4J+TDR and furnace R801V0754A17DZ33 of 121 models qualify · AHRI 218827549
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	77.3(50 is the typical model of its size class) (higher)SP17AY60AJVCwith indoor coil TCFY6024STANM and furnace S801V1255A24UHNAlso sold as RUUD RP17AY60AJVC2 of 32 models qualify · AHRI 218327534
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	94.4(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ductless indoor unit ML06HP2301WYCAS-I29 of 38 models qualify · AHRI 215864386
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)ML24HP230NEXH-Owith ductless indoor unit ML24HP230STDCAS-I8 of 8 models qualify · AHRI 215864372
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	89.4(50 is the typical model of its size class) (higher)ML36HP230LCMH-Owith ductless indoor unit ML36HP230FLO-I16 of 19 models qualify · AHRI 215864403
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)ML48HP230MULH-O*Also listed as ML48HP230MULH - O11 of 12 models qualify · AHRI 216623576
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	None on this board (0 of 2 models qualify)

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	RheemAll-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	95.0(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ducted air handler ML06HP230LSDUC-I32 of 32 models have all five ratings · AHRI 215864373
Ducted, 2 tons	82.9(50 is the typical model of its size class) (higher)A7CP21V24P-**Awith ducted air handler 7AH2AE24PX-75 of 75 models have all five ratings · AHRI 217465953	78.8(50 is the typical model of its size class)ML24HP230NEX-Owith ducted air handler ML24HP230HSDUC-I33 of 33 models have all five ratings · AHRI 215864360
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	92.7(50 is the typical model of its size class) (higher)RD18AY36AJVCwith ducted air handler L(E,G)M36FJ65 of 91 models have all five ratings · AHRI 218029736
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	86.3(50 is the typical model of its size class) (higher)RD18AY48AJVCwith ducted air handler L(E,G)M60IJ66 of 116 models have all five ratings · AHRI 218029742
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	70.4(50 is the typical model of its size class) (higher)RP17AY60AJVCwith ducted air handler RH2TY6024STANNAlso sold as SURE SP17AY60AJVC22 of 38 models have all five ratings · AHRI 218160613
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	93.8(50 is the typical model of its size class) (higher)ML06HP230NEXH-Owith ductless indoor unit ML06HP230NEX-I37 of 38 models have all five ratings · AHRI 215864338
Non-ducted, 2 tons	86.8(50 is the typical model of its size class) (higher)MHPC-H-024BSBwith ductless indoor unit MWAL-H-024BBB78 of 82 models have all five ratings · AHRI 216497919	76.4(50 is the typical model of its size class)ML24HP230CALH-Owith ductless indoor unit ML24HP230CALH-I8 of 8 models have all five ratings · AHRI 215864348
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	78.3(50 is the typical model of its size class) (higher)ML36HP230MULH-O*Also listed as ML36HP230MULH - O18 of 19 models have all five ratings · AHRI 216623571
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)ML48HP230MULH-O*Also listed as ML48HP230MULH - O12 of 12 models have all five ratings · AHRI 216623574
Non-ducted, 5 tons and up	68.8(50 is the typical model of its size class) (higher)GMV-V60WL/NHC-T(U)Also sold as Tosot TMV-V60WL/NHC-T(U)3 of 3 models have all five ratings · AHRI 216772249	58.6(50 is the typical model of its size class)ML55HP230MUL-O*2 of 2 models have all five ratings · AHRI 216623550

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	Rheem
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% · 3.05RP15AY24AJ2NDucted, up to 1.5 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%ML06HP230CALH-ONon-ducted, up to 1.5 tons
HSPF2	beats 98% · 10.8SPHP-Z-V030BBDucted, 2.5–3 tons	beats 100% · 15.6ML06HP230CALH-ONon-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% · 35.0ML06HP230CALH-ONon-ducted, up to 1.5 tons
EER2	beats 100% · 14.5BH714S18P-**ADucted, up to 1.5 tons	beats 99% · 17.4ML06HP230CALH-ONon-ducted, 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% · 35,800 Btu/hRP15AY30AJ2NDucted, 2 tons

More comparisons

Pick any two manufacturers

Gree vs Rheem heat pumps