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DIAL vs PREMIUM LEVELLA heat pumps

Measured against models of the same size and duct type, DIAL scores higher on 5 of the 6 ratings. DIAL has 7 outdoor models, PREMIUM LEVELLA has 17 outdoor models. DIAL and PREMIUM LEVELLA have no QMID on file and are not ranked.

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CompareData as of updated · 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.
DIAL and PREMIUM LEVELLA 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, DIAL scores higher on 5 of the 6 ratings.
  • DIAL
  • PREMIUM LEVELLA
  • Other ranked manufacturers
DIALPREMIUM …

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingDIALPREMIUM LEVELLA
Efficiency index58% (higher)median —47% (higher)median —
COP at 5°F48%median 2.0055%median 2.00
Capacity retention at 5°F38% (higher)median 72%35% (higher)median 70%
HSPF261% (higher)median 10.047% (higher)median 10.0
SEER275% (higher)median 23.048% (higher)median 21.0
EER257% (higher)median 12.542% (higher)median 12.0
Heating capacity at 5°F42% (higher)median 13,600 Btu/h38% (higher)median 11,600 Btu/h
Outdoor models717
AHRI certifications717

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardDIALPREMIUM LEVELLA
CEE 2025 Tier 1 (Split ASHP)100%7 models70.6%12 models
CEE 2026 Tier 1 (Split ASHP)100%7 models70.6%12 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)100%7 models47.1%8 models
DOE Cold Climate Heat Pump Challenge0%0 models0%0 models
ENERGY STAR Cold Climate0%0 models41.2%7 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 · 3 groups where both have models
  • DIAL
  • PREMIUM LEVELLA
  • All models of the group
Non-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 modelsNon-ducted, 2.5–3 tons2.001,106 modelsNon-ducted, 3.5–4.5 tons2.00564 modelsmedian

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of

Models per peer group · efficiency index within the group
Size and duct typeDIALPREMIUM LEVELLA
Non-ducted, up to 1.5 tons4 · index 60%10 · index 41%
Non-ducted, 2 tons1 · index 48%3 · index 44%
Non-ducted, 2.5–3 tons2 · index 58%3 · index 65%
Non-ducted, 3.5–4.5 tonsNone1 · index 72%

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 typeDIALCold-climate score, best modelPREMIUM LEVELLACold-climate score, best model
Non-ducted, up to 1.5 tons59.5(50 is the typical model of its size class)A2LSZHW12WW230BDJwith ductless indoor unit A2LSZHW12NN230BDJ4 of 4 models qualify · AHRI 21773060579.2(50 is the typical model of its size class) (higher)PIAW1825080ABwith ductless indoor unit PIAW1825079AA4 of 10 models qualify · AHRI 216775680
Non-ducted, 2 tons36.7(50 is the typical model of its size class)A2LSZHW23WW230BCJwith ductless indoor unit A2LSZHW23NN230BCJ1 of 1 models qualify · AHRI 21773060767.5(50 is the typical model of its size class) (higher)PIAWMZ2482380AB1 of 3 models qualify · AHRI 217014451
Non-ducted, 2.5–3 tons57.5(50 is the typical model of its size class) (higher)A2LMZ27WW3PBDJ2 of 2 models qualify · AHRI 21773060857.4(50 is the typical model of its size class)PIAWMZ3082380AB2 of 3 models qualify · AHRI 217014452
Non-ducted, 3.5–4.5 tonsNo models in this size class50.3(50 is the typical model of its size class)PIAWMZ4282480AB1 of 1 models qualify · AHRI 217014454

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 typeDIALAll-around score, best modelPREMIUM LEVELLAAll-around score, best model
Non-ducted, up to 1.5 tons67.7(50 is the typical model of its size class)A2LSZHW12WW230BDJwith ductless indoor unit A2LSZHW12NN230BDJ4 of 4 models have all five ratings · AHRI 21773060582.9(50 is the typical model of its size class) (higher)PIAW1825080ABwith ductless indoor unit PIAW1825079AA10 of 10 models have all five ratings · AHRI 216775680
Non-ducted, 2 tons48.3(50 is the typical model of its size class)A2LSZHW23WW230BCJwith ductless indoor unit A2LSZHW23NN230BCJ1 of 1 models have all five ratings · AHRI 21773060771.8(50 is the typical model of its size class) (higher)PIAWMZ2482380AB3 of 3 models have all five ratings · AHRI 217014451
Non-ducted, 2.5–3 tons65.1(50 is the typical model of its size class)A2LMZ27WW3PBDJ2 of 2 models have all five ratings · AHRI 21773060866.6(50 is the typical model of its size class) (higher)PIAWMZ3082380AB2 of 3 models have all five ratings · AHRI 217014452
Non-ducted, 3.5–4.5 tonsNo models in this size class72.1(50 is the typical model of its size class)PIAWMZ4282480AB1 of 1 models have all five ratings · AHRI 217014454

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
RatingDIALPREMIUM LEVELLA
COP at 5°Fbeats 77% · 2.10A2LSZHW12WW115BCJNon-ducted, up to 1.5 tonsbeats 96% · 2.21PIAW3417080ABNon-ducted, 2.5–3 tons
Capacity retention at 5°Fbeats 49% · 74%A2LSZHW23WW230BCJNon-ducted, 2 tonsbeats 79% · 90%PIAWMZ2482380ABNon-ducted, 2 tons
HSPF2beats 80% · 10.5A2LMZ27WW3PBDJNon-ducted, 2.5–3 tonsbeats 79% · 10.5PIAW1825080ABNon-ducted, up to 1.5 tons
SEER2beats 91% · 24.0A2LMZ27WW3PBDJNon-ducted, 2.5–3 tonsbeats 94% · 24.0PIAWMZ4282480ABNon-ducted, 3.5–4.5 tons
EER2beats 70% · 13.0A2LSZHW09WW115BDJNon-ducted, up to 1.5 tonsbeats 87% · 12.5PIAWMZ4282480ABNon-ducted, 3.5–4.5 tons
Heating capacity at 5°Fbeats 79% · 13,600 Btu/hA2LSZHW18WW230BCJNon-ducted, up to 1.5 tonsbeats 86% · 15,000 Btu/hPIAW1825080ABNon-ducted, up to 1.5 tons

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