Achazel vs SKM AIR CONDITIONING EQUIPMENT heat pumps

Measured against models of the same size and duct type, SKM AIR CONDITIONING EQUIPMENT scores higher on 6 of the 6 ratings. Achazel has 3 outdoor models, SKM AIR CONDITIONING EQUIPMENT has 3 outdoor models. Achazel and SKM AIR CONDITIONING EQUIPMENT have no QMID on file and are not ranked.

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CompareData as of Oct 11, 2026updated Oct 11, 2026 · sources

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.

Achazel and SKM AIR CONDITIONING EQUIPMENT 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, SKM AIR CONDITIONING EQUIPMENT scores higher on 6 of the 6 ratings.

Achazel
SKM AIR CONDITIONING EQUIPMENT
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Achazel	SKM AIR CONDITIONING EQUIPMENT
Efficiency index	20%median —	52%median —
COP at 5°F	17%median 1.80	23%median 1.80
Capacity retention at 5°F	34%median 70%	41%median 67%
HSPF2	16%median 8.5	50%median 9.0
SEER2	23%median 19.0	62%median 22.0
EER2	13%median 10.0	69%median 13.0
Heating capacity at 5°F	40%median 8,600 Btu/h	48%median 11,900 Btu/h
Outdoor models	3	3
AHRI certifications	3	3

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Achazel	SKM AIR CONDITIONING EQUIPMENT
CEE 2025 Tier 1 (Split ASHP)	66.7%2 models	100%3 models
CEE 2026 Tier 1 (Split ASHP)	66.7%2 models	100%3 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	66.7%2 models	33.3%1 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	0%0 models	0%0 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 · 1 groups where both have models

Achazel
SKM AIR CONDITIONING EQUIPMENT
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	Achazel	SKM AIR CONDITIONING EQUIPMENT
Non-ducted, up to 1.5 tons	3 · index 20%	2 · index 54%
Non-ducted, 2 tons	None	1 · index 47%

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	AchazelCold-climate score, best model	SKM AIR CONDITIONING EQUIPMENTCold-climate score, best model
Non-ducted, up to 1.5 tons	28.4(50 is the typical model of its size class)ACA-2504Awith ductless indoor unit ACA-2503A2 of 3 models qualify · AHRI 214584771	47.5(50 is the typical model of its size class) (higher)MSKM-12with ductless indoor unit MSKM-121 of 2 models qualify · AHRI 208842429
Non-ducted, 2 tons	No models in this size class	None on this board (0 of 1 models qualify)

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	AchazelAll-around score, best model	SKM AIR CONDITIONING EQUIPMENTAll-around score, best model
Non-ducted, up to 1.5 tons	23.6(50 is the typical model of its size class)ACA-2504Awith ductless indoor unit ACA-2503A3 of 3 models have all five ratings · AHRI 214584771	60.2(50 is the typical model of its size class) (higher)MSKM-12with ductless indoor unit MSKM-122 of 2 models have all five ratings · AHRI 208842429
Non-ducted, 2 tons	No models in this size class	46.5(50 is the typical model of its size class)MSKM-24with ductless indoor unit MSKM-241 of 1 models have all five ratings · AHRI 208842431

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	Achazel	SKM AIR CONDITIONING EQUIPMENT
COP at 5°F	beats 22% · 1.80ACA-2504ANon-ducted, up to 1.5 tons	beats 26% · 1.80MSKM-24Non-ducted, 2 tons
Capacity retention at 5°F	beats 46% · 70%ACA-2504ANon-ducted, up to 1.5 tons	beats 60% · 76%MSKM-12Non-ducted, up to 1.5 tons
HSPF2	beats 16% · 8.5ACA-2502ANon-ducted, up to 1.5 tons	beats 57% · 9.5MSKM-12Non-ducted, up to 1.5 tons
SEER2	beats 23% · 19.0ACA-2502ANon-ducted, up to 1.5 tons	beats 73% · 23.0MSKM-12Non-ducted, up to 1.5 tons
EER2	beats 15% · 10.0ACA-2502ANon-ducted, up to 1.5 tons	beats 68% · 13.0MSKM-12Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 61% · 11,600 Btu/hACA-2508ANon-ducted, up to 1.5 tons	beats 66% · 11,900 Btu/hMSKM-18Non-ducted, up to 1.5 tons

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