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.

LG and Puremind 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, LG scores higher on 5 of the 6 ratings.

LG
Puremind
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	LG	Puremind
Efficiency index	56% (higher)median — · 10th ranked	37% (higher)median —
COP at 5°F	56% (higher)median 1.96 · 17th ranked	24% (higher)median 1.80
Capacity retention at 5°F	57% (higher)median 74% · 9th ranked	40% (higher)median 72%
HSPF2	51%median 9.0 · 14th ranked	51%median 9.5
SEER2	49% (higher)median 20.0 · 17th ranked	44% (higher)median 20.0
EER2	64% (higher)median 12.3 · 4th ranked	28% (higher)median 10.0
Heating capacity at 5°F	61% (higher)median 15,550 Btu/h · 7th ranked	42% (higher)median 12,000 Btu/h
Outdoor models	100	95
AHRI certifications	1,179	95

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	LG	Puremind
CEE 2025 Tier 1 (Split ASHP)	86%86 models	47.4%45 models
CEE 2026 Tier 1 (Split ASHP)	82%82 models	47.4%45 models
CEE Advanced Tier (Split ASHP)	11%11 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	78%78 models	52.6%50 models
DOE Cold Climate Heat Pump Challenge	11%11 models	0%0 models
ENERGY STAR Cold Climate	64%64 models	0%0 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 · 6 groups where both have models

LG
Puremind
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	LG	Puremind
Ducted, up to 1.5 tons	12 · index 54%	None
Ducted, 2 tons	9 · index 53%	6 · index 31%
Ducted, 2.5–3 tons	11 · index 62%	6 · index 39%
Ducted, 3.5–4.5 tons	16 · index 66%	12 · index 35%
Ducted, 5 tons and up	2 · index 81%	None
Non-ducted, up to 1.5 tons	44 · index 46%	52 · index 42%
Non-ducted, 2 tons	14 · index 50%	12 · index 34%
Non-ducted, 2.5–3 tons	12 · index 63%	7 · index 15%
Non-ducted, 3.5–4.5 tons	10 · index 69%	None
Non-ducted, 5 tons and up	1 · index 85%	None

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	LGCold-climate score, best model	PuremindCold-climate score, best model
Ducted, up to 1.5 tons	80.4(50 is the typical model of its size class)KUSXA181Awith ducted air handler MSVT24***852FAA10 of 10 models qualify · AHRI 217581954	No models in this size class
Ducted, 2 tons	78.1(50 is the typical model of its size class) (higher)ZRUN024GSS010 of 10 models qualify · AHRI 214914956	42.5(50 is the typical model of its size class)PTF24B1-EBH4Uwith ducted air handler PTF24B1-EBH4UAlso listed as ATF24B1-EBH4U, CTF24B1-EBH4U3 of 6 models qualify · AHRI 218725507
Ducted, 2.5–3 tons	87.4(50 is the typical model of its size class) (higher)ZRUM036GSS010 of 10 models qualify · AHRI 214914952	55.4(50 is the typical model of its size class)PTF36B1-EBH4Uwith ducted air handler PTF36B1-EBH4UAlso listed as ATF36B1-EBH4U, CTF36B1-EBH4U3 of 6 models qualify · AHRI 218725508
Ducted, 3.5–4.5 tons	90.4(50 is the typical model of its size class) (higher)KUMXA481A18 of 18 models qualify · AHRI 215408637	44.1(50 is the typical model of its size class)PTF48B1-BBH4Uwith ducted air handler PTF48B1-BBH4UAlso listed as ATF48B1-BBH4U, CTF48B1-BBH4U12 of 12 models qualify · AHRI 218725521
Ducted, 5 tons and up	94.6(50 is the typical model of its size class)KUMXB601A2 of 2 models qualify · AHRI 215402344	No models in this size class
Non-ducted, up to 1.5 tons	86.8(50 is the typical model of its size class) (higher)KUSAL091Awith ductless indoor unit KNSAL091A44 of 44 models qualify · AHRI 216368959	63.3(50 is the typical model of its size class)PTW09B1-EBH5D-04with ductless indoor unit PTW09B1-EBH5D-04Also listed as ATW09B1-EBH5D-0439 of 52 models qualify · AHRI 218686859
Non-ducted, 2 tons	85.4(50 is the typical model of its size class) (higher)ZRUN024GSS07 of 14 models qualify · AHRI 215223214	58.0(50 is the typical model of its size class)PTW24B1-EBH5D-04with ductless indoor unit PTW24B1-EBH5D-04Also listed as ATW24B1-EBH5D-045 of 12 models qualify · AHRI 218686862
Non-ducted, 2.5–3 tons	93.7(50 is the typical model of its size class)KUMXA361A12 of 12 models qualify · AHRI 215402345	None on this board (0 of 7 models qualify)
Non-ducted, 3.5–4.5 tons	95.9(50 is the typical model of its size class)KUMXA421A8 of 9 models qualify · AHRI 215402347	No models in this size class
Non-ducted, 5 tons and up	84.7(50 is the typical model of its size class)KUMXB601A2 of 2 models qualify · AHRI 215408633	No models in this size class

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	LGAll-around score, best model	PuremindAll-around score, best model
Ducted, up to 1.5 tons	78.7(50 is the typical model of its size class)KUSXA181Awith ducted air handler MSVT24***852FAA10 of 10 models have all five ratings · AHRI 217581954	No models in this size class
Ducted, 2 tons	79.5(50 is the typical model of its size class) (higher)ZRUN024GSS08 of 8 models have all five ratings · AHRI 214914956	37.2(50 is the typical model of its size class)PTF24B1-EBH4Uwith ducted air handler PTF24B1-EBH4UAlso listed as ATF24B1-EBH4U, CTF24B1-EBH4U6 of 6 models have all five ratings · AHRI 218725507
Ducted, 2.5–3 tons	89.3(50 is the typical model of its size class) (higher)KUMXA361A12 of 12 models have all five ratings · AHRI 215402346	51.6(50 is the typical model of its size class)PTF36B1-EBH4Uwith ducted air handler PTF36B1-EBH4UAlso listed as ATF36B1-EBH4U, CTF36B1-EBH4U6 of 6 models have all five ratings · AHRI 218725508
Ducted, 3.5–4.5 tons	91.2(50 is the typical model of its size class) (higher)KUMXA421A18 of 18 models have all five ratings · AHRI 215402348	38.0(50 is the typical model of its size class)PTF48B1-EBH4Uwith ducted air handler PTF48B1-EBH4UAlso listed as PTF60B1-EBH4U, ATF48B1-EBH4U, ATF60B1-EBH4U, CTF48B1-EBH4U and 1 more12 of 12 models have all five ratings · AHRI 218725509
Ducted, 5 tons and up	89.5(50 is the typical model of its size class)KUMXB601A2 of 2 models have all five ratings · AHRI 215402344	No models in this size class
Non-ducted, up to 1.5 tons	91.4(50 is the typical model of its size class) (higher)KUSAL091Awith ductless indoor unit KNSAL091A44 of 44 models have all five ratings · AHRI 216368959	76.0(50 is the typical model of its size class)PTW09B1-EBH5D-04with ductless indoor unit PTW09B1-EBH5D-04Also listed as ATW09B1-EBH5D-0452 of 52 models have all five ratings · AHRI 218686859
Non-ducted, 2 tons	77.2(50 is the typical model of its size class) (higher)ZRUN024GSS014 of 14 models have all five ratings · AHRI 214914954	56.1(50 is the typical model of its size class)PTW24B1-EBH5D-04with ductless indoor unit PTW24B1-EBH5D-04Also listed as ATW24B1-EBH5D-0412 of 12 models have all five ratings · AHRI 218686862
Non-ducted, 2.5–3 tons	90.3(50 is the typical model of its size class) (higher)KUSXA301Awith ductless indoor unit KNSCB301A12 of 12 models have all five ratings · AHRI 214826535	20.2(50 is the typical model of its size class)PTW36B1-EBH3O-04with ductless indoor unit PTW36B1-EBH3O-04Also listed as PTW36B1-BBH4O-04, ATW36B1-BBH4O-04, CTW36B1-BBH4O-047 of 7 models have all five ratings · AHRI 218686873
Non-ducted, 3.5–4.5 tons	89.3(50 is the typical model of its size class)KUMXA421A9 of 9 models have all five ratings · AHRI 215402347	No models in this size class
Non-ducted, 5 tons and up	85.4(50 is the typical model of its size class)ZRUM060GSS02 of 2 models have all five ratings · AHRI 214914943	No models in this size class

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	LG	Puremind
COP at 5°F	beats 100% · 3.17KUSXB181ADucted, up to 1.5 tons	beats 77% · 2.10PTW12C1-EBH4O-04Also listed as ATW12C1-EBH4O-04, CTW12C1-EBH4O-04Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 100% · 137%KUSXA181ADucted, up to 1.5 tons	beats 90% · 101%PTW09B1-EBH5D-04Also listed as ATW09B1-EBH5D-04Non-ducted, up to 1.5 tons
HSPF2	beats 97% · 13.5KUSAL091ANon-ducted, up to 1.5 tons	beats 79% · 10.5PTW09B1-EBH5D-04Also listed as ATW09B1-EBH5D-04Non-ducted, up to 1.5 tons
SEER2	beats 98% · 23.0ZRUM060GSS0Non-ducted, 5 tons and up	beats 84% · 25.0PTW09B1-EBH5D-04Also listed as ATW09B1-EBH5D-04Non-ducted, up to 1.5 tons
EER2	beats 100% · 14.8ZRUN024GSS0Ducted, 2 tons	beats 87% · 14.5PTW09B1-EBH5D-04Also listed as ATW09B1-EBH5D-04Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 100% · 25,000 Btu/hKUSXA181ADucted, up to 1.5 tons	beats 90% · 17,800 Btu/hPTW18B1-EBH5D-04Also listed as ATW18B1-EBH5D-04Non-ducted, up to 1.5 tons

More comparisons

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LG vs Puremind heat pumps