Coast Air heat pump efficiency: 6 outdoor models compared

Coast Air has 6 heat pump outdoor models certified with this refrigerant group, in 6 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: 6
AHRI certifications: 6
Efficiency index: 50%; Typical model vs same-size, same-type peers (5 models)
Meet CEE 2025: 66.7%; 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 SEER2 (its typical model beats 54% of comparable models) and weakest on capacity retention at 5°F (16%).

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 index5 models scored	50%	Not ranked	—
COP at 5°F5 models scored	52%	Not ranked	1.95
Capacity retention at 5°F5 models scored	16%	Not ranked	63%
HSPF26 models scored	46%	Not ranked	9.1
SEER26 models scored	54%	Not ranked	21.5
EER26 models scored	48%	Not ranked	12.5
Heating capacity at 5°F5 models scored	26%	Not ranked	11,700 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)	66.7%	4
CEE 2026 Tier 1 (Split ASHP)	66.7%	4
CEE Advanced Tier (Split ASHP)	0%	0
Xcel Energy Colorado cold-climate ASHP (2025)	0%	0
DOE Cold Climate Heat Pump Challenge	0%	0
ENERGY STAR Cold Climate	0%	0

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	60%	62%	64%	77%
Non-ducted, 2 tons	1	51%	43%	58%	58%
Non-ducted, 2.5–3 tons	2	21%	31%	15%	17%

Every Coast Air model in the market

Coast Air’s 6 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 11,475 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: 6 coast air models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 11,475 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	175	1.70	1.85	1.90	2.10	2.26
Ducted, 1 ton	340	1.85	1.90	2.00	2.40	2.65
Ducted, 1.5 tons	789	1.75	1.85	2.00	2.20	2.55
Ducted, 2 tons	782	1.73	1.80	2.00	2.10	2.33
Ducted, 2.5 tons	735	1.71	1.80	1.90	2.09	2.48
Ducted, 3 tons	652	1.68	1.70	1.90	2.06	2.36
Ducted, 3.5 tons	641	1.61	1.80	1.95	2.20	2.50
Ducted, 4 tons	367	1.70	1.80	1.91	2.02	2.52
Ducted, 4.5 tons	544	1.70	1.80	1.91	2.08	2.34
Ducted, 5 tons	25	1.80	1.80	1.90	1.90	2.15
Non-ducted, 0.5 tons	717	1.75	1.81	1.97	2.10	2.19
Non-ducted, 1 ton	1,064	1.75	1.80	1.90	2.07	2.25
Non-ducted, 1.5 tons	886	1.80	1.80	1.87	2.07	2.21
Non-ducted, 2 tons	564	1.80	1.80	1.83	2.04	2.21
Non-ducted, 2.5 tons	275	1.80	1.81	1.84	1.86	2.03
Non-ducted, 3 tons	502	1.80	1.80	1.90	2.00	2.09
Non-ducted, 3.5 tons	70	1.82	1.83	1.90	2.00	2.28
Non-ducted, 4 tons	263	1.80	1.80	1.98	2.00	2.10
Non-ducted, 4.5 tons	103	1.77	1.77	1.80	1.97	2.02
Non-ducted, 5 tons	29	1.98	2.00	2.10	2.30	2.47

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

No Coast Air model keeps at least 70% of its heat at 5°F with all three cold-climate ratings.

All-around best

Top 5 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-CAD09-0ACoast Air · A-serieswith ductless indoor unit B-CAD09-0A	1 ton9,000 Btu/h · Non-ducted	65%	1.96	10.8	25.0	14.5	CEE 25CEE 26	1	214312526	Non-ducted, up to 1.5 tons	72.3	55.6	89.0	Not a pick
2A-CAD18-1ACoast Air · A-serieswith ductless indoor unit B-CAD18-1A	1.5 tons18,000 Btu/h · Non-ducted	65%	2.05	9.8	22.7	12.6	CEE 25CEE 26	1	211126491	Non-ducted, up to 1.5 tons	59.1	52.0	66.3	Not a pick
3A-CAD24-1ACoast Air · A-serieswith ductless indoor unit B-CAD24-1A	2 tons23,000 Btu/h · Non-ducted	63%	1.83	9.2	20.5	12.5	CEE 25CEE 26	1	211126489	Non-ducted, 2 tons	51.4	41.2	61.7	Not a pick
4A-CAD12-0ACoast Air · A-serieswith ductless indoor unit B-CAD12-0A	1 ton12,000 Btu/h · Non-ducted	53%	1.95	9.0	22.5	12.5	CEE 25CEE 26	1	211126490	Non-ducted, up to 1.5 tons	47.2	34.9	59.6	Not a pick
5A-CAD36-1ACoast Airwith ductless indoor unit B-CAD36-1A	3 tons36,000 Btu/h · Non-ducted	57%	1.82	8.0	18.3	8.7	None	1	211126488	Non-ducted, 2.5–3 tons	20.9	18.5	23.2	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-CAD18-1A	2.05	Non-ducted, up to 1.5 tons	70%	211126491
Capacity retention at 5°F	A-CAD24-1A	63%	Non-ducted, 2 tons	23%	211126489
HSPF2	A-CAD09-0A	10.8	Non-ducted, up to 1.5 tons	85%	214312526
SEER2	A-CAD09-0A	25.0	Non-ducted, up to 1.5 tons	87%	214312526
EER2	A-CAD09-0A	14.5	Non-ducted, up to 1.5 tons	89%	214312526
Heating capacity at 5°F	A-CAD18-1A	11,700 Btu/h	Non-ducted, up to 1.5 tons	63%	211126491

All 6 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	None on this board (0 of 3 models qualify)	72.3(50 is the typical model of its size class)A-CAD09-0Awith ductless indoor unit B-CAD09-0A3 of 3 models have all five ratings · AHRI 214312526
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	51.4(50 is the typical model of its size class)A-CAD24-1Awith ductless indoor unit B-CAD24-1A1 of 1 models have all five ratings · AHRI 211126489
Non-ducted, 2.5–3 tons	None on this board (0 of 2 models qualify)	20.9(50 is the typical model of its size class)A-CAD36-1Awith ductless indoor unit B-CAD36-1A1 of 2 models have all five ratings · AHRI 211126488

All-around board, every manufacturer

Newest Coast Air certifications

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

The 5 most recently certified Coast Air outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
A-CAD09-0ACoast Air · A-serieswith ductless indoor unit B-CAD09-0A	1 ton9,000 Btu/h · Non-ducted	1.96	65%	10.8	25.0	CEE 25CEE 26	1	214312526
A-CAD18-1ACoast Air · A-serieswith ductless indoor unit B-CAD18-1A	1.5 tons18,000 Btu/h · Non-ducted	2.05	65%	9.8	22.7	CEE 25CEE 26	1	211126491
A-CAD12-0ACoast Air · A-serieswith ductless indoor unit B-CAD12-0A	1 ton12,000 Btu/h · Non-ducted	1.95	53%	9.0	22.5	CEE 25CEE 26	1	211126490
A-CAD24-1ACoast Air · A-serieswith ductless indoor unit B-CAD24-1A	2 tons23,000 Btu/h · Non-ducted	1.83	63%	9.2	20.5	CEE 25CEE 26	1	211126489
A-CAD36-1ACoast Airwith ductless indoor unit B-CAD36-1A	3 tons36,000 Btu/h · Non-ducted	1.82	57%	8.0	18.3	None	1	211126488

Shares hardware with

Manufacturers whose models are the same equipment under another badge. About OEM families

No shared hardware found for Coast Air in this group.

Compare Coast Air

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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.