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.

Kaden and Kerr 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, Kerr scores higher on 5 of the 6 ratings.

Kaden
Kerr
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Kaden	Kerr
Efficiency index	61%median —	66%median —
COP at 5°F	58%median 2.00	59%median 2.00
Capacity retention at 5°F	53%median 72%	77%median 95%
HSPF2	64%median 9.5	78%median 10.0
SEER2	63%median 19.3	64%median 19.5
EER2	65% (higher)median 12.0	62% (higher)median 11.9
Heating capacity at 5°F	55%median 19,800 Btu/h	73%median 18,500 Btu/h
Outdoor models	66	38
AHRI certifications	399	113

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Kaden	Kerr
CEE 2025 Tier 1 (Split ASHP)	68.2%45 models	78.9%30 models
CEE 2026 Tier 1 (Split ASHP)	66.7%44 models	76.3%29 models
CEE Advanced Tier (Split ASHP)	3%2 models	2.6%1 models
Xcel Energy Colorado cold-climate ASHP (2025)	59.1%39 models	89.5%34 models
DOE Cold Climate Heat Pump Challenge	3%2 models	2.6%1 models
ENERGY STAR Cold Climate	57.6%38 models	89.5%34 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

Kaden
Kerr
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	Kaden	Kerr
Ducted, up to 1.5 tons	13 · index 72%	7 · index 75%
Ducted, 2 tons	9 · index 52%	3 · index 60%
Ducted, 2.5–3 tons	16 · index 54%	7 · index 66%
Ducted, 3.5–4.5 tons	19 · index 54%	5 · index 61%
Ducted, 5 tons and up	2 · index 63%	None
Non-ducted, up to 1.5 tons	13 · index 73%	18 · index 66%
Non-ducted, 2 tons	2 · index 82%	3 · index 58%
Non-ducted, 2.5–3 tons	12 · index 59%	3 · index 67%
Non-ducted, 3.5–4.5 tons	6 · index 68%	2 · index 67%
Non-ducted, 5 tons and up	2 · index 59%	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	KadenCold-climate score, best model	KerrCold-climate score, best model
Ducted, up to 1.5 tons	85.5(50 is the typical model of its size class) (higher)KOB-HH-UUX18HP-2AAMAwith ducted air handler KIB-HH-UUX18AH3-2AAMA11 of 13 models qualify · AHRI 217970408	82.3(50 is the typical model of its size class)A-KHP18SA-1with ducted air handler B-KHP18DA-17 of 7 models qualify · AHRI 217482433
Ducted, 2 tons	85.7(50 is the typical model of its size class)KOB-HH-PSX24HP-2AAMAwith ducted air handler KIB-PSX24HS-2AAMA6 of 9 models qualify · AHRI 215866654	85.7(50 is the typical model of its size class)A-KHP24SA-1with ducted air handler B-KHP24DA-13 of 3 models qualify · AHRI 217482436
Ducted, 2.5–3 tons	82.5(50 is the typical model of its size class)KOB-HH-PS436HP-2AAMAAlso listed as KOB-HH-PS536HP-2AAMA9 of 16 models qualify · AHRI 215866690	82.5(50 is the typical model of its size class)A-KHP365A-17 of 7 models qualify · AHRI 216097146
Ducted, 3.5–4.5 tons	82.7(50 is the typical model of its size class)KOB-HH-PS548HP-2AAMAAlso listed as KOB-HH-PS648HP-2AAMA10 of 19 models qualify · AHRI 215866693	82.7(50 is the typical model of its size class)A-KHP486A-15 of 5 models qualify · AHRI 216097150
Ducted, 5 tons and up	None on this board (0 of 2 models qualify)	No models in this size class
Non-ducted, up to 1.5 tons	96.7(50 is the typical model of its size class)KOB-HH-PSX06HP-2AAMAwith ductless indoor unit KIB-PSX06WM-2AAMA12 of 13 models qualify · AHRI 215866628	96.7(50 is the typical model of its size class)A-KHP06SA-1with ductless indoor unit B-KHP06SA-112 of 18 models qualify · AHRI 216097110
Non-ducted, 2 tons	89.4(50 is the typical model of its size class)KOB-HH-PSX24HP-2AAMAwith ductless indoor unit KIB-PSX24CT-2AAMA2 of 2 models qualify · AHRI 215866644	89.4(50 is the typical model of its size class)A-KHP24SA-1with ductless indoor unit B-KHP24CA-13 of 3 models qualify · AHRI 217482434
Non-ducted, 2.5–3 tons	78.0(50 is the typical model of its size class)KOB-HH-PS436HP-2AAMAAlso listed as KOB-HH-PS536HP-2AAMA10 of 12 models qualify · AHRI 215866691	78.0(50 is the typical model of its size class)A-KHP365A-13 of 3 models qualify · AHRI 216097148
Non-ducted, 3.5–4.5 tons	73.4(50 is the typical model of its size class)KOB-HH-PS548HP-2AAMAAlso listed as KOB-HH-PS648HP-2AAMA6 of 6 models qualify · AHRI 215866694	73.4(50 is the typical model of its size class)A-KHP486A-12 of 2 models qualify · AHRI 216097152
Non-ducted, 5 tons and up	None on this board (0 of 2 models qualify)	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	KadenAll-around score, best model	KerrAll-around score, best model
Ducted, up to 1.5 tons	86.7(50 is the typical model of its size class) (higher)KOB-HH-PSX09HP-2AAMAwith ducted air handler KIB-PSX09LS-2AAMA13 of 13 models have all five ratings · AHRI 215866649	86.5(50 is the typical model of its size class)A-KHP09SA-1with ducted air handler B-KHP09DA-17 of 7 models have all five ratings · AHRI 217482423
Ducted, 2 tons	78.8(50 is the typical model of its size class) (higher)KOB-PSX24HP-2AAMAwith ducted air handler KIB-PSX24HS-2AAMA9 of 9 models have all five ratings · AHRI 215866660	78.4(50 is the typical model of its size class)A-KHP24SA-1with ducted air handler B-KHP24DA-13 of 3 models have all five ratings · AHRI 217482436
Ducted, 2.5–3 tons	83.6(50 is the typical model of its size class)KOB-HH-PS436HP-2AAMAAlso listed as KOB-HH-PS536HP-2AAMA16 of 16 models have all five ratings · AHRI 215866690	83.6(50 is the typical model of its size class)A-KHP365A-17 of 7 models have all five ratings · AHRI 216097146
Ducted, 3.5–4.5 tons	85.1(50 is the typical model of its size class) (higher)KOB-PS548HP-2AAMAAlso listed as KOB-PS648HP-2AAMA19 of 19 models have all five ratings · AHRI 215866678	83.9(50 is the typical model of its size class)A-KHP486A-15 of 5 models have all five ratings · AHRI 216097150
Ducted, 5 tons and up	62.5(50 is the typical model of its size class)KOB-PS555HP-2AAMAAlso listed as KOB-PS655HP-2AAMA2 of 2 models have all five ratings · AHRI 215866681	No models in this size class
Non-ducted, up to 1.5 tons	96.2(50 is the typical model of its size class)KOB-HH-PSX06HP-2AAMAwith ductless indoor unit KIB-PSX06WM-2AAMA13 of 13 models have all five ratings · AHRI 215866628	96.2(50 is the typical model of its size class)A-KHP06SA-1with ductless indoor unit B-KHP06SA-116 of 18 models have all five ratings · AHRI 216097110
Non-ducted, 2 tons	86.8(50 is the typical model of its size class) (higher)KOB-PSX24HP-2AAMAwith ductless indoor unit KIB-PSX24WM-2AAMA2 of 2 models have all five ratings · AHRI 215866638	76.4(50 is the typical model of its size class)A-KHP24SA-1with ductless indoor unit B-KHP24SA-1Also listed as A-ZKP24SA-13 of 3 models have all five ratings · AHRI 216097114
Non-ducted, 2.5–3 tons	78.3(50 is the typical model of its size class)KOB-HH-PS436HP-2AAMAAlso listed as KOB-HH-PS536HP-2AAMA12 of 12 models have all five ratings · AHRI 215866689	78.3(50 is the typical model of its size class)A-KHP365A-13 of 3 models have all five ratings · AHRI 216097145
Non-ducted, 3.5–4.5 tons	75.6(50 is the typical model of its size class)KOB-HH-PS548HP-2AAMAAlso listed as KOB-HH-PS648HP-2AAMA6 of 6 models have all five ratings · AHRI 215866692	75.6(50 is the typical model of its size class)A-KHP486A-12 of 2 models have all five ratings · AHRI 216097149
Non-ducted, 5 tons and up	58.6(50 is the typical model of its size class)KOB-PS555HP-2AAMAAlso listed as KOB-PS655HP-2AAMA2 of 2 models have all five ratings · AHRI 215866680	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	Kaden	Kerr
COP at 5°F	beats 99% · 2.54KOB-PSX24HP-2AAMANon-ducted, 2 tons	beats 97% · 2.40A-KHP06SA-1Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 98% · 120%KOB-HH-PSX09HP-2AAMADucted, up to 1.5 tons	beats 100% · 150%A-KZP06SA-1Also listed as A-ZKP06SA-1Non-ducted, up to 1.5 tons
HSPF2	beats 99% · 14.8KOB-HH-PSX06HP-2AAMANon-ducted, up to 1.5 tons	beats 100% · 15.6A-KZP06SA-1Also listed as A-ZKP06SA-1Non-ducted, up to 1.5 tons
SEER2	beats 97% · 25.0KOB-PS327HP-2AAMAAlso listed as KOB-PS427HP-2AAMANon-ducted, 2.5–3 tons	beats 100% · 27.0A-ZKP15SA-1Ducted, up to 1.5 tons
EER2	beats 99% · 18.0KOB-HH-PSX06HP-2AAMANon-ducted, up to 1.5 tons	beats 99% · 18.0A-KHP06SA-1Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 98% · 54,000 Btu/hKOB-HH-UUX60HP-2AAMADucted, 3.5–4.5 tons	beats 99% · 22,600 Btu/hA-KZP18SA-1Also listed as A-ZKP18SA-1Non-ducted, up to 1.5 tons

More comparisons

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Kaden vs Kerr heat pumps