Kerr heat pump efficiency: 38 outdoor models compared

Kerr has 38 heat pump outdoor models certified with this refrigerant group, in 113 AHRI-certified combinations. Each model is compared with models of the same size and duct type, so the scores below do not depend on which sizes Kerr makes. Kerr has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

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ManufacturerData as of Oct 9, 2026updated Oct 10, 2026 · sources

Outdoor models: 38
AHRI certifications: 113
Efficiency index: 66%; Typical model vs same-size, same-type peers (46 models)
Meet CEE 2025: 78.9%; 30 models

How Kerr compares with comparable models

For each rating: the share of same-size, same-type models that a typical model of this manufacturer beats (50% is typical), its rank, and the raw median for context. Raw medians are not comparable across manufacturers that make different sizes.

Kerr against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Kerr’s own modelsKerr is strongest on HSPF2 (its typical model beats 78% of comparable models) and weakest on COP at 5°F (59%).

Kerr
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of Kerr’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index46 models scored	66%	Not ranked	—
COP at 5°F48 models scored	59%	Not ranked	2.00
Capacity retention at 5°F48 models scored	77%	Not ranked	95%
HSPF246 models scored	78%	Not ranked	10.0
SEER248 models scored	64%	Not ranked	19.5
EER248 models scored	62%	Not ranked	11.9
Heating capacity at 5°F48 models scored	73%	Not ranked	18,500 Btu/h

Standards met

Share of Kerr’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	78.9%	30
CEE 2026 Tier 1 (Split ASHP)	76.3%	29
CEE Advanced Tier (Split ASHP)	2.6%	1
Xcel Energy Colorado cold-climate ASHP (2025)	89.5%	34
DOE Cold Climate Heat Pump Challenge	2.6%	1
ENERGY STAR Cold Climate	89.5%	34

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.

Kerr’s models inside each size and duct typeShape: every model of the group · blue: the middle half of this manufacturer’s models there, median dot, 10th–90th percentile line

Kerr (median, middle 50%, 10th–90th)
All models of the group

Source: AHRI Directory · as of Oct 9, 2026

Share of comparable models beaten, per peer group
Size and duct type	Models	Index	COP@5°F	HSPF2	SEER2
Ducted, up to 1.5 tons	7	75%	64%	80%	74%
Ducted, 2 tons	3	60%	43%	85%	59%
Ducted, 2.5–3 tons	7	66%	43%	85%	60%
Ducted, 3.5–4.5 tons	5	61%	45%	79%	66%
Non-ducted, up to 1.5 tons	18	66%	68%	73%	67%
Non-ducted, 2 tons	3	58%	84%	69%	34%
Non-ducted, 2.5–3 tons	3	67%	46%	83%	57%
Non-ducted, 3.5–4.5 tons	2	67%	52%	82%	70%

Every Kerr model in the market

Kerr’s 48 models with a known size and duct type, over the shape of the whole catalog.

Kerr models by size and ratingColoured: Kerr · grey shapes: all 14,508 models · lines: catalog medians by size

Kerr models
Ducted median by size
Non-ducted median by size
Every model at each size (width = count)
Standard threshold

Dots: 48 kerr models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 models, half a ton at a time.

Show the data as a table

COP at 5°F by size and duct type (every model, by rated cooling capacity)
Duct type, size	Models	10th pct.	25th	Median	75th	90th
Ducted, 0.5 tons	826	1.64	1.71	1.75	1.85	2.24
Ducted, 1 ton	407	1.80	1.90	2.05	2.41	2.45
Ducted, 1.5 tons	992	1.75	1.86	2.00	2.17	2.40
Ducted, 2 tons	999	1.75	1.86	2.00	2.18	2.30
Ducted, 2.5 tons	1,040	1.70	1.80	2.00	2.10	2.36
Ducted, 3 tons	696	1.80	1.90	2.00	2.10	2.42
Ducted, 3.5 tons	864	1.70	1.80	2.00	2.10	2.46
Ducted, 4 tons	727	1.80	1.86	2.00	2.12	2.40
Ducted, 4.5 tons	690	1.70	1.80	1.90	2.10	2.20
Ducted, 5 tons	86	1.89	2.00	2.10	2.10	2.10
Non-ducted, 0.5 tons	1,186	1.75	1.80	1.90	2.00	2.22
Non-ducted, 1 ton	1,343	1.80	1.80	1.99	2.10	2.21
Non-ducted, 1.5 tons	1,261	1.80	1.80	2.00	2.10	2.31
Non-ducted, 2 tons	761	1.80	1.98	2.00	2.10	2.30
Non-ducted, 2.5 tons	403	1.80	1.85	2.00	2.00	2.10
Non-ducted, 3 tons	473	1.90	1.98	2.00	2.03	2.20
Non-ducted, 3.5 tons	280	2.00	2.00	2.00	2.05	2.10
Non-ducted, 4 tons	204	1.96	2.00	2.05	2.10	2.11
Non-ducted, 4.5 tons	78	1.90	1.91	1.95	2.01	2.01
Non-ducted, 5 tons	84	1.99	2.00	2.05	2.20	2.20

Source: AHRI Directory · as of Oct 9, 2026

Top Kerr models

Its top five cold-climate picks and its top five all-around models across sizes (both scores compare each model with models of its own size and duct type, so sizes compare), then, on each single rating, the model that beats the largest share of comparable models.

Cold-climate picks

Top 5 Kerr cold-climate picks across sizes. 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.
# · Outdoor model	Size · type	Cap. 5/47	COP@5°F	HSPF2	Btu/h @5°F	SEER2	Meets	Combos	AHRI ref.	Compared with	Score
1A-KHP06SA-1Kerr · A-KHP Serieswith ductless indoor unit B-KHP06SA-1	0.5 tons6,000 Btu/h · Non-ducted	110%	2.40	14.8	7,700	25.5	CEE 25CEE 26CEE AdvXcelDOEES CC	3	216097110	Non-ducted, up to 1.5 tons	96.7
2A-KHP24SA-1Kerr · A Serieswith ductless indoor unit B-KHP24CA-1	2 tons23,400 Btu/h · Non-ducted	95%	2.23	11.6	23,800	20.7	CEE 25CEE 26XcelES CC	5	217482434	Non-ducted, 2 tons	89.4
3A-ZKP24SA-1Kerr · A-ZKP Serieswith ductless indoor unit B-ZKP24SA-1	2 tons24,000 Btu/h · Non-ducted	83%	2.34	13.5	24,200	21.0	CEE 25CEE 26XcelES CC	1	218404567	Non-ducted, 2 tons	88.4
4A-KZP06SA-1Kerr · A-KZP Serieswith ductless indoor unit B-ZKP06SA-1Also listed as A-ZKP06SA-1	0.5 tons6,000 Btu/h · Non-ducted	150%	2.00	15.6	13,500	35.0	CEE 25CEE 26XcelES CC	1	216097120	Non-ducted, up to 1.5 tons	87.6
5A-KZPO9SA-1Kerr · A-KZP Serieswith ductless indoor unit B-ZKPO9SA-1Also listed as A-ZKP09SA-1	1 ton9,000 Btu/h · Non-ducted	113%	2.00	14.6	13,500	33.3	CEE 25CEE 26XcelES CC	1	216097121	Non-ducted, up to 1.5 tons	85.9

All-around best

Top 5 Kerr models on the all-around score across sizes. 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.
# · Outdoor model	Size · type	Cap. 5/47	COP@5°F	HSPF2	SEER2	EER2	Meets	Combos	AHRI ref.	Compared with	Score	Heating half	Cooling half	Cold-climate score
1A-KHP06SA-1Kerr · A-KHP Serieswith ductless indoor unit B-KHP06SA-1	0.5 tons6,000 Btu/h · Non-ducted	110%	2.40	14.8	25.5	18.0	CEE 25CEE 26CEE AdvXcelDOEES CC	3	216097110	Non-ducted, up to 1.5 tons	96.2	96.7	95.7	96.7
2A-KZP06SA-1Kerr · A-KZP Serieswith ductless indoor unit B-ZKP06SA-1Also listed as A-ZKP06SA-1	0.5 tons6,000 Btu/h · Non-ducted	150%	2.00	15.6	35.0	17.4	CEE 25CEE 26XcelES CC	1	216097120	Non-ducted, up to 1.5 tons	93.4	87.6	99.2	87.6
3A-KZPO9SA-1Kerr · A-KZP Serieswith ductless indoor unit B-ZKPO9SA-1Also listed as A-ZKP09SA-1	1 ton9,000 Btu/h · Non-ducted	113%	2.00	14.6	33.3	17.0	CEE 25CEE 26XcelES CC	1	216097121	Non-ducted, up to 1.5 tons	92.3	85.9	98.7	85.9
4A-KZP12SA-1Kerr · A-KZP Serieswith ductless indoor unit B-ZKP12SA-1Also listed as A-ZKP12SA-1	1 ton12,000 Btu/h · Non-ducted	113%	2.00	12.7	29.4	14.2	CEE 25CEE 26XcelES CC	1	216097122	Non-ducted, up to 1.5 tons	88.8	85.4	92.2	85.4
5A-KHP09SA-1Kerr · A Serieswith ducted air handler B-KHP09DA-1	1 ton9,000 Btu/h · Ducted	120%	1.85	13.8	20.5	14.0	CEE 25CEE 26XcelES CC	8	217482423	Ducted, up to 1.5 tons	86.5	79.9	93.2	79.9

Best model on each rating

Kerr’s model with the highest peer percentile on each rating, ranked by that one rating only
Rating	Model	Value	Compared with	Beats	AHRI ref.
COP at 5°F	A-KHP06SA-1	2.40	Non-ducted, up to 1.5 tons	97%	216097110
Capacity retention at 5°F	A-KZP06SA-1Also listed as A-ZKP06SA-1	150%	Non-ducted, up to 1.5 tons	100%	216097120
HSPF2	A-KZP06SA-1Also listed as A-ZKP06SA-1	15.6	Non-ducted, up to 1.5 tons	100%	216097120
SEER2	A-ZKP15SA-1	27.0	Ducted, up to 1.5 tons	100%	218404566
EER2	A-KHP06SA-1	18.0	Non-ducted, up to 1.5 tons	99%	216097110
Heating capacity at 5°F	A-KZP18SA-1Also listed as A-ZKP18SA-1	22,600 Btu/h	Non-ducted, up to 1.5 tons	99%	216097123

All 38 Kerr models in Explore

Kerr size class by size class: cold-climate and all-around

Its best model on each board in every size and duct type it makes. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there). Cold-climate picks must keep at least 70% of their heat at 5°F; the all-around score needs all five ratings and has no such bar.

Kerr: best cold-climate pick and best all-around model per size and duct type, with how many of its models are on each board (top 5 and 5 per class are in the snapshot)
Size and duct type	Cold-climate pickCold-climate score, best model	All-around bestAll-around score, best model
Ducted, up to 1.5 tons	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	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	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	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	82.5(50 is the typical model of its size class)A-KHP365A-17 of 7 models qualify · AHRI 216097146	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	82.7(50 is the typical model of its size class)A-KHP486A-15 of 5 models qualify · AHRI 216097150	83.9(50 is the typical model of its size class)A-KHP486A-15 of 5 models have all five ratings · AHRI 216097150
Non-ducted, up to 1.5 tons	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	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	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	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	78.0(50 is the typical model of its size class)A-KHP365A-13 of 3 models qualify · AHRI 216097148	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	73.4(50 is the typical model of its size class)A-KHP486A-12 of 2 models qualify · AHRI 216097152	75.6(50 is the typical model of its size class)A-KHP486A-12 of 2 models have all five ratings · AHRI 216097149

All-around board, every manufacturer

Newest Kerr certifications

By AHRI reference number; AHRI issues references in increasing order.

The 5 most recently certified Kerr outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
A-KXP60SA-1Kerr · A Serieswith ducted air handler MXP48/60D1A	4 tons47,000 Btu/h · Ducted	1.83	74%	8.1	15.2	CEE 25CEE 26XcelES CC	5	218724449
A-KXP48SA-1Kerrwith ducted air handler HG1K*60+TXV+TD	3.5 tons44,000 Btu/h · Ducted	1.78	82%	8.3	14.3	CEE 25CEE 26XcelES CC	6	218695867
A-KXP36SA-1Kerrwith ducted air handler HG32*36+TXV+TD	3 tons34,800 Btu/h · Ducted	1.82	99%	9.0	15.2	CEE 25CEE 26XcelES CC	9	218694624
A-KXP30SA-1Kerrwith ducted air handler HG32*36+TXV+TD	2.5 tons28,200 Btu/h · Ducted	1.78	105%	9.2	15.2	CEE 25CEE 26XcelES CC	10	218694622
A-KXP24SA-1Kerrwith ducted air handler HG21*24+TXV+TD	2 tons23,000 Btu/h · Ducted	1.70	86%	8.8	15.2	CEE 25CEE 26XcelES CC	6	218694619

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Kerr includes these brand names as listed in AHRI: Kerr. Standards are checked against published thresholds; program rules beyond ratings are not checked.