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.

KANIONco and LG 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.

KANIONco
LG
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	KANIONco	LG
Efficiency index	47%median —	56%median — · 10th ranked
COP at 5°F	37%median 1.83	56%median 1.96 · 17th ranked
Capacity retention at 5°F	45%median 72%	57%median 74% · 9th ranked
HSPF2	50%median 9.5	51%median 9.0 · 14th ranked
SEER2	58% (higher)median 19.0	49% (higher)median 20.0 · 17th ranked
EER2	41%median 11.1	64%median 12.3 · 4th ranked
Heating capacity at 5°F	49%median 18,000 Btu/h	61%median 15,550 Btu/h · 7th ranked
Outdoor models	56	100
AHRI certifications	60	1,179

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	KANIONco	LG
CEE 2025 Tier 1 (Split ASHP)	66.1%37 models	86%86 models
CEE 2026 Tier 1 (Split ASHP)	66.1%37 models	82%82 models
CEE Advanced Tier (Split ASHP)	0%0 models	11%11 models
Xcel Energy Colorado cold-climate ASHP (2025)	62.5%35 models	78%78 models
DOE Cold Climate Heat Pump Challenge	0%0 models	11%11 models
ENERGY STAR Cold Climate	35.7%20 models	64%64 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 · 8 groups where both have models

KANIONco
LG
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	KANIONco	LG
Ducted, up to 1.5 tons	7 · index 23%	12 · index 54%
Ducted, 2 tons	4 · index 55%	9 · index 53%
Ducted, 2.5–3 tons	7 · index 57%	11 · index 62%
Ducted, 3.5–4.5 tons	10 · index 49%	16 · index 66%
Ducted, 5 tons and up	None	2 · index 81%
Non-ducted, up to 1.5 tons	19 · index 49%	44 · index 46%
Non-ducted, 2 tons	4 · index 40%	14 · index 50%
Non-ducted, 2.5–3 tons	6 · index 51%	12 · index 63%
Non-ducted, 3.5–4.5 tons	3 · index 51%	10 · index 69%
Non-ducted, 5 tons and up	None	1 · index 85%

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	KANIONcoCold-climate score, best model	LGCold-climate score, best model
Ducted, up to 1.5 tons	57.7(50 is the typical model of its size class)KWSMO-18IR454BHS201 of 7 models qualify · AHRI 217048780	80.4(50 is the typical model of its size class) (higher)KUSXA181Awith ducted air handler MSVT24***852FAA10 of 10 models qualify · AHRI 217581954
Ducted, 2 tons	67.2(50 is the typical model of its size class)KAHU-24IR454BHS20AEwith ducted air handler KAHU-24IR454BHS20AEAlso listed as KAHUO-24IR454BHS20AE3 of 4 models qualify · AHRI 218043597	78.1(50 is the typical model of its size class) (higher)ZRUN024GSS010 of 10 models qualify · AHRI 214914956
Ducted, 2.5–3 tons	64.9(50 is the typical model of its size class)KAHU-36IR454BHS18AEwith ducted air handler KAHU-36IR454BHS18AEAlso listed as KAHUO-36IR454BHS18AE6 of 7 models qualify · AHRI 218043598	87.4(50 is the typical model of its size class) (higher)ZRUM036GSS010 of 10 models qualify · AHRI 214914952
Ducted, 3.5–4.5 tons	64.7(50 is the typical model of its size class)KAHU-60IR454BHS17AEwith ducted air handler KAHU-60IR454BHS17AEAlso listed as KAHUO-60IR454BHS17AE10 of 10 models qualify · AHRI 218043600	90.4(50 is the typical model of its size class) (higher)KUMXA481A18 of 18 models qualify · AHRI 215408637
Ducted, 5 tons and up	No models in this size class	94.6(50 is the typical model of its size class)KUMXB601A2 of 2 models qualify · AHRI 215402344
Non-ducted, up to 1.5 tons	70.9(50 is the typical model of its size class)KWSMO-18IR454BHS27R15 of 19 models qualify · AHRI 218396955	86.8(50 is the typical model of its size class) (higher)KUSAL091Awith ductless indoor unit KNSAL091A44 of 44 models qualify · AHRI 216368959
Non-ducted, 2 tons	58.0(50 is the typical model of its size class)KWSM-24IR454BHS22.5R*with ductless indoor unit KWSM-24IR454BHS22.5R2 of 4 models qualify · AHRI 218399921	85.4(50 is the typical model of its size class) (higher)ZRUN024GSS07 of 14 models qualify · AHRI 215223214
Non-ducted, 2.5–3 tons	68.0(50 is the typical model of its size class)KWSMO-27IR454BHS26.5R4 of 6 models qualify · AHRI 218396956	93.7(50 is the typical model of its size class) (higher)KUMXA361A12 of 12 models qualify · AHRI 215402345
Non-ducted, 3.5–4.5 tons	48.1(50 is the typical model of its size class)KWSMO-48IR454BHS24R3 of 3 models qualify · AHRI 218396958	95.9(50 is the typical model of its size class) (higher)KUMXA421A8 of 9 models qualify · AHRI 215402347
Non-ducted, 5 tons and up	No models in this size class	84.7(50 is the typical model of its size class)KUMXB601A2 of 2 models qualify · AHRI 215408633

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	KANIONcoAll-around score, best model	LGAll-around score, best model
Ducted, up to 1.5 tons	69.0(50 is the typical model of its size class)KWSMO-18IR454BHS207 of 7 models have all five ratings · AHRI 217048780	78.7(50 is the typical model of its size class) (higher)KUSXA181Awith ducted air handler MSVT24***852FAA10 of 10 models have all five ratings · AHRI 217581954
Ducted, 2 tons	79.6(50 is the typical model of its size class) (higher)KAHU-24IR454BHS20AEwith ducted air handler KAHU-24IR454BHS20AEAlso listed as KAHUO-24IR454BHS20AE4 of 4 models have all five ratings · AHRI 218043597	79.5(50 is the typical model of its size class)ZRUN024GSS08 of 8 models have all five ratings · AHRI 214914956
Ducted, 2.5–3 tons	69.9(50 is the typical model of its size class)KWSMO-27IR454BHS207 of 7 models have all five ratings · AHRI 217048781	89.3(50 is the typical model of its size class) (higher)KUMXA361A12 of 12 models have all five ratings · AHRI 215402346
Ducted, 3.5–4.5 tons	67.5(50 is the typical model of its size class)KWSMO-42IR454BHS1910 of 10 models have all five ratings · AHRI 217048783	91.2(50 is the typical model of its size class) (higher)KUMXA421A18 of 18 models have all five ratings · AHRI 215402348
Ducted, 5 tons and up	No models in this size class	89.5(50 is the typical model of its size class)KUMXB601A2 of 2 models have all five ratings · AHRI 215402344
Non-ducted, up to 1.5 tons	82.6(50 is the typical model of its size class)KWSMO-18IR454BHS27R19 of 19 models have all five ratings · AHRI 218396955	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
Non-ducted, 2 tons	56.1(50 is the typical model of its size class)KWSM-24IR454BHS22.5R*with ductless indoor unit KWSM-24IR454BHS22.5R4 of 4 models have all five ratings · AHRI 218399921	77.2(50 is the typical model of its size class) (higher)ZRUN024GSS014 of 14 models have all five ratings · AHRI 214914954
Non-ducted, 2.5–3 tons	83.1(50 is the typical model of its size class)KWSMO-27IR454BHS26.5R6 of 6 models have all five ratings · AHRI 218396956	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
Non-ducted, 3.5–4.5 tons	70.2(50 is the typical model of its size class)KWSMO-48IR454BHS24R3 of 3 models have all five ratings · AHRI 218396958	89.3(50 is the typical model of its size class) (higher)KUMXA421A9 of 9 models have all five ratings · AHRI 215402347
Non-ducted, 5 tons and up	No models in this size class	85.4(50 is the typical model of its size class)ZRUM060GSS02 of 2 models have all five ratings · AHRI 214914943

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	KANIONco	LG
COP at 5°F	beats 81% · 2.03KWSM-36IR454BHS19PNon-ducted, 2.5–3 tons	beats 100% · 3.17KUSXB181ADucted, up to 1.5 tons
Capacity retention at 5°F	beats 92% · 106%KWSM-09IR454BHS25RNon-ducted, up to 1.5 tons	beats 100% · 137%KUSXA181ADucted, up to 1.5 tons
HSPF2	beats 80% · 10.5KWSMO-27IR454BHS20Non-ducted, 2.5–3 tons	beats 97% · 13.5KUSAL091ANon-ducted, up to 1.5 tons
SEER2	beats 99% · 26.5KWSMO-27IR454BHS26.5RNon-ducted, 2.5–3 tons	beats 98% · 23.0ZRUM060GSS0Non-ducted, 5 tons and up
EER2	beats 97% · 14.0KWSMO-27IR454BHS26.5RNon-ducted, 2.5–3 tons	beats 100% · 14.8ZRUN024GSS0Ducted, 2 tons
Heating capacity at 5°F	beats 98% · 19,800 Btu/hKWSMO-18IR454BHS27RNon-ducted, up to 1.5 tons	beats 100% · 25,000 Btu/hKUSXA181ADucted, up to 1.5 tons

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KANIONco vs LG heat pumps