Coast Air heat pump efficiency: 4 outdoor models compared

Coast Air has 4 heat pump outdoor models certified with this refrigerant group, in 4 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 Coast Air makes. Coast Air 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: 4
AHRI certifications: 4
Efficiency index: 67%; Typical model vs same-size, same-type peers (4 models)
Meet CEE 2025: 100%; 4 models

How Coast Air 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.

Coast Air against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Coast Air’s own modelsCoast Air is strongest on COP at 5°F (its typical model beats 76% of comparable models) and weakest on capacity retention at 5°F (29%).

Coast Air
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of Coast Air’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index4 models scored	67%	Not ranked	—
COP at 5°F4 models scored	76%	Not ranked	2.13
Capacity retention at 5°F4 models scored	29%	Not ranked	71%
HSPF24 models scored	75%	Not ranked	10.9
SEER24 models scored	72%	Not ranked	23.1
EER24 models scored	75%	Not ranked	13.2
Heating capacity at 5°F4 models scored	37%	Not ranked	10,600 Btu/h

Standards met

Share of Coast Air’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	100%	4
CEE 2026 Tier 1 (Split ASHP)	100%	4
CEE Advanced Tier (Split ASHP)	0%	0
Xcel Energy Colorado cold-climate ASHP (2025)	75%	3
DOE Cold Climate Heat Pump Challenge	0%	0
ENERGY STAR Cold Climate	75%	3

Sizes and duct types offered

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

Coast Air’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

Coast Air (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
Non-ducted, up to 1.5 tons	3	70%	84%	86%	72%
Non-ducted, 2 tons	1	56%	51%	44%	75%

Every Coast Air model in the market

Coast Air’s 4 models with a known size and duct type, over the shape of the whole catalog.

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

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

Dots: 4 coast air 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 Coast Air 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 3 Coast Air 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-CAD18-1BCoast Air · A Serieswith ductless indoor unit B-CAD18-1B	1.5 tons18,000 Btu/h · Non-ducted	71%	2.44	11.5	12,800	22.5	CEE 25CEE 26XcelES CC	1	217187391	Non-ducted, up to 1.5 tons	73.1
2A-CAD09-0BCoast Air · A Serieswith ductless indoor unit B-CAD09-0B	1 ton9,000 Btu/h · Non-ducted	73%	2.16	11.5	7,300	23.6	CEE 25CEE 26XcelES CC	1	217187389	Non-ducted, up to 1.5 tons	70.6
3A-CAD12-0BCoast Air · A Serieswith ductless indoor unit B-CAD12-0B	1 ton12,000 Btu/h · Non-ducted	70%	2.09	10.2	8,400	23.5	CEE 25CEE 26XcelES CC	1	217187390	Non-ducted, up to 1.5 tons	57.5

All-around best

Top 4 Coast Air 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-CAD09-0BCoast Air · A Serieswith ductless indoor unit B-CAD09-0B	1 ton9,000 Btu/h · Non-ducted	73%	2.16	11.5	23.6	14.0	CEE 25CEE 26XcelES CC	1	217187389	Non-ducted, up to 1.5 tons	75.6	70.6	80.5	70.6
2A-CAD18-1BCoast Air · A Serieswith ductless indoor unit B-CAD18-1B	1.5 tons18,000 Btu/h · Non-ducted	71%	2.44	11.5	22.5	13.7	CEE 25CEE 26XcelES CC	1	217187391	Non-ducted, up to 1.5 tons	73.3	73.1	73.4	73.1
3A-CAD12-0BCoast Air · A Serieswith ductless indoor unit B-CAD12-0B	1 ton12,000 Btu/h · Non-ducted	70%	2.09	10.2	23.5	12.5	CEE 25CEE 26XcelES CC	1	217187390	Non-ducted, up to 1.5 tons	62.0	57.5	66.5	57.5
4A-CAD24-1BCoast Air · A Serieswith ductless indoor unit B-CAD24-1B	2 tons24,000 Btu/h · Non-ducted	67%	2.00	9.5	22.7	12.7	CEE 25CEE 26	1	217187392	Non-ducted, 2 tons	56.2	38.3	74.1	Not a pick

Best model on each rating

Coast Air’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-CAD18-1B	2.44	Non-ducted, up to 1.5 tons	98%	217187391
Capacity retention at 5°F	A-CAD09-0B	73%	Non-ducted, up to 1.5 tons	38%	217187389
HSPF2	A-CAD09-0B	11.5	Non-ducted, up to 1.5 tons	88%	217187389
SEER2	A-CAD24-1B	22.7	Non-ducted, 2 tons	71%	217187392
EER2	A-CAD09-0B	14.0	Non-ducted, up to 1.5 tons	83%	217187389
Heating capacity at 5°F	A-CAD18-1B	12,800 Btu/h	Non-ducted, up to 1.5 tons	73%	217187391

All 4 Coast Air models in Explore

Coast Air 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.

Coast Air: 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
Non-ducted, up to 1.5 tons	73.1(50 is the typical model of its size class)A-CAD18-1Bwith ductless indoor unit B-CAD18-1B3 of 3 models qualify · AHRI 217187391	75.6(50 is the typical model of its size class)A-CAD09-0Bwith ductless indoor unit B-CAD09-0B3 of 3 models have all five ratings · AHRI 217187389
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	56.2(50 is the typical model of its size class)A-CAD24-1Bwith ductless indoor unit B-CAD24-1B1 of 1 models have all five ratings · AHRI 217187392

All-around board, every manufacturer

Newest Coast Air certifications

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

The 4 most recently certified Coast Air outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
A-CAD24-1BCoast Air · A Serieswith ductless indoor unit B-CAD24-1B	2 tons24,000 Btu/h · Non-ducted	2.00	67%	9.5	22.7	CEE 25CEE 26	1	217187392
A-CAD18-1BCoast Air · A Serieswith ductless indoor unit B-CAD18-1B	1.5 tons18,000 Btu/h · Non-ducted	2.44	71%	11.5	22.5	CEE 25CEE 26XcelES CC	1	217187391
A-CAD12-0BCoast Air · A Serieswith ductless indoor unit B-CAD12-0B	1 ton12,000 Btu/h · Non-ducted	2.09	70%	10.2	23.5	CEE 25CEE 26XcelES CC	1	217187390
A-CAD09-0BCoast Air · A Serieswith ductless indoor unit B-CAD09-0B	1 ton9,000 Btu/h · Non-ducted	2.16	73%	11.5	23.6	CEE 25CEE 26XcelES CC	1	217187389

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