AIR MAX vs UA United Appliances heat pumps

Measured against models of the same size and duct type, AIR MAX scores higher on 5 of the 6 ratings. AIR MAX has 7 outdoor models, UA United Appliances has 13 outdoor models. AIR MAX and UA United Appliances 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.

AIR MAX and UA United Appliances 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, AIR MAX scores higher on 5 of the 6 ratings.

AIR MAX
UA United Appliances
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	AIR MAX	UA United Appliances
Efficiency index	45% (higher)median —	27% (higher)median —
COP at 5°F	28% (higher)median 1.80	16% (higher)median 1.76
Capacity retention at 5°F	60% (higher)median 73%	43% (higher)median 60%
HSPF2	17%median 8.5	27%median 8.2
SEER2	46% (higher)median 20.0	30% (higher)median 16.0
EER2	49% (higher)median 11.3	22% (higher)median 10.0
Heating capacity at 5°F	52% (higher)median 12,000 Btu/h	36% (higher)median 16,100 Btu/h
Outdoor models	7	13
AHRI certifications	7	13

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	AIR MAX	UA United Appliances
CEE 2025 Tier 1 (Split ASHP)	57.1%4 models	15.4%2 models
CEE 2026 Tier 1 (Split ASHP)	57.1%4 models	15.4%2 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	42.9%3 models	23.1%3 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 · 2 groups where both have models

AIR MAX
UA United Appliances
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	AIR MAX	UA United Appliances
Ducted, 2 tons	None	1 · index 27%
Ducted, 2.5–3 tons	None	2 · index 28%
Ducted, 3.5–4.5 tons	None	3 · index 33%
Non-ducted, up to 1.5 tons	4 · index 49%	5 · index 16%
Non-ducted, 2 tons	1 · index 25%	None
Non-ducted, 2.5–3 tons	2 · index 48%	2 · 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	AIR MAXCold-climate score, best model	UA United AppliancesCold-climate score, best model
Ducted, 2 tons	No models in this size class	None on this board (0 of 1 models qualify)
Ducted, 2.5–3 tons	No models in this size class	None on this board (0 of 2 models qualify)
Ducted, 3.5–4.5 tons	No models in this size class	None on this board (0 of 3 models qualify)
Non-ducted, up to 1.5 tons	50.5(50 is the typical model of its size class) (higher)AWGYC12-C2with ductless indoor unit AWGYE12-C2Also listed as AWGYC12-H24 of 4 models qualify · AHRI 205758359	28.8(50 is the typical model of its size class)UAWH09-DD3D1/Owith ductless indoor unit UAWH09-DD3D1/I4 of 5 models qualify · AHRI 213257467
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	No models in this size class
Non-ducted, 2.5–3 tons	44.1(50 is the typical model of its size class)AWGYC36-H2with ductless indoor unit AWGYE36-H21 of 2 models qualify · AHRI 211330205	44.1(50 is the typical model of its size class)UAWH36-DD3D1/Owith ductless indoor unit UAWH36-DD3D1/I2 of 2 models qualify · AHRI 213257471

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	AIR MAXAll-around score, best model	UA United AppliancesAll-around score, best model
Ducted, 2 tons	No models in this size class	26.7(50 is the typical model of its size class)UADH24-DD3D1/Owith ducted air handler UADH24-DD3D1/I1 of 1 models have all five ratings · AHRI 213386663
Ducted, 2.5–3 tons	No models in this size class	29.0(50 is the typical model of its size class)UADH36-DD3D1/Owith ducted air handler UADH36-DD3D1/I2 of 2 models have all five ratings · AHRI 213386665
Ducted, 3.5–4.5 tons	No models in this size class	36.4(50 is the typical model of its size class)UADH42-DD3D1/Owith ducted air handler UADH42-DD3D1/I3 of 3 models have all five ratings · AHRI 213386666
Non-ducted, up to 1.5 tons	68.1(50 is the typical model of its size class) (higher)AWGYC12-C2with ductless indoor unit AWGYE12-C2Also listed as AWGYC12-H24 of 4 models have all five ratings · AHRI 205758359	23.2(50 is the typical model of its size class)UAWH09-AD3D1/Owith ductless indoor unit UAWH09-AD3D1/I5 of 5 models have all five ratings · AHRI 213257466
Non-ducted, 2 tons	25.1(50 is the typical model of its size class)AWGSC24-H2with ductless indoor unit AWGSE24-H21 of 1 models have all five ratings · AHRI 204517336	No models in this size class
Non-ducted, 2.5–3 tons	47.8(50 is the typical model of its size class)AWGYC36-H2with ductless indoor unit AWGYE36-H21 of 2 models have all five ratings · AHRI 211330205	47.8(50 is the typical model of its size class)UAWH36-DD3D1/Owith ductless indoor unit UAWH36-DD3D1/I2 of 2 models have all five ratings · AHRI 213257471

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	AIR MAX	UA United Appliances
COP at 5°F	beats 53% · 1.85AWGYC36-H2Non-ducted, 2.5–3 tons	beats 53% · 1.85UAWH36-DD3D1/ONon-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 78% · 98%AWGYC12-C2Also listed as AWGYC12-H2Non-ducted, up to 1.5 tons	beats 65% · 79%UAWH09-DD3D1/ONon-ducted, up to 1.5 tons
HSPF2	beats 25% · 8.5AWGYC36-H2Non-ducted, 2.5–3 tons	beats 39% · 7.8UADH42-DD3D1/ODucted, 3.5–4.5 tons
SEER2	beats 83% · 24.0AWGYC12-C2Also listed as AWGYC12-H2Non-ducted, up to 1.5 tons	beats 53% · 15.5UADH42-DD3D1/ODucted, 3.5–4.5 tons
EER2	beats 85% · 14.0AWGYC12-C2Also listed as AWGYC12-H2Non-ducted, up to 1.5 tons	beats 53% · 11.3UAWH30-DD3D1/ONon-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 69% · 12,000 Btu/hAWGYC12-C2Also listed as AWGYC12-H2Non-ducted, up to 1.5 tons	beats 59% · 11,500 Btu/hUAWH18-DD3D1/ONon-ducted, up to 1.5 tons

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