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Airdach vs Panasonic heat pumps

Measured against models of the same size and duct type, Panasonic scores higher on 6 of the 6 ratings. Airdach has 29 outdoor models, Panasonic has 29 outdoor models. Airdach and Panasonic 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.
Airdach and Panasonic 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, Panasonic scores higher on 6 of the 6 ratings.
  • Airdach
  • Panasonic
  • Other ranked manufacturers
AirdachPanasonic

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingAirdachPanasonic
Efficiency index40%median —68%median —
COP at 5°F48%median 1.9464%median 2.00
Capacity retention at 5°F34%median 71%72%median 90%
HSPF228%median 7.580%median 10.3
SEER229%median 14.366%median 20.0
EER249%median 11.462%median 12.0
Heating capacity at 5°F31%median 15,700 Btu/h74%median 21,600 Btu/h
Outdoor models2929
AHRI certifications45277

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardAirdachPanasonic
CEE 2025 Tier 1 (Split ASHP)24.1%7 models96.6%28 models
CEE 2026 Tier 1 (Split ASHP)24.1%7 models96.6%28 models
CEE Advanced Tier (Split ASHP)0%0 models20.7%6 models
Xcel Energy Colorado cold-climate ASHP (2025)31%9 models89.7%26 models
DOE Cold Climate Heat Pump Challenge0%0 models20.7%6 models
ENERGY STAR Cold Climate0%0 models79.3%23 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 · 7 groups where both have models
  • Airdach
  • Panasonic
  • All models of the group
Ducted, up to 1.5 tons1.901,783 modelsDucted, 2 tons2.001,090 modelsDucted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsNon-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 typeAirdachPanasonic
Ducted, up to 1.5 tons2 · index —6 · index 68%
Ducted, 2 tons3 · index 36%3 · index 64%
Ducted, 2.5–3 tons7 · index 48%6 · index 64%
Ducted, 3.5–4.5 tons10 · index 54%5 · index 52%
Non-ducted, up to 1.5 tons5 · index 30%9 · index 81%
Non-ducted, 2 tons1 · index 25%4 · index 76%
Non-ducted, 2.5–3 tons1 · index 30%3 · index 57%
Non-ducted, 3.5–4.5 tonsNone1 · index 63%

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 typeAirdachCold-climate score, best modelPanasonicCold-climate score, best model
Ducted, up to 1.5 tonsNone on this board (0 of 2 models qualify)80.1(50 is the typical model of its size class)CU-YM9CBUCwith ducted air handler CS-YM9CD2UW5 of 6 models qualify · AHRI 218027968
Ducted, 2 tonsNone on this board (0 of 3 models qualify)77.1(50 is the typical model of its size class)CU-YM24CBUCwith ducted air handler CS-YM24CD1UW3 of 3 models qualify · AHRI 218027971
Ducted, 2.5–3 tons59.2(50 is the typical model of its size class)A3TH36180OV1DGwith ducted air handler A3DH36000OE1DT1 of 7 models qualify · AHRI 21879704583.1(50 is the typical model of its size class) (higher)CU-5YM36CBUC5 of 6 models qualify · AHRI 218027980
Ducted, 3.5–4.5 tons69.8(50 is the typical model of its size class)A3TH60180OV1DGwith ducted air handler A3DH60000OE1DT1 of 10 models qualify · AHRI 21879704682.7(50 is the typical model of its size class) (higher)CU-6YM48CBUC5 of 5 models qualify · AHRI 218027983
Non-ducted, up to 1.5 tons41.6(50 is the typical model of its size class)ACSH0920VR1-D3with ductless indoor unit AIWH0900VR1-D35 of 5 models qualify · AHRI 21710199294.9(50 is the typical model of its size class) (higher)CU-XZ9AKUACwith ductless indoor unit CS-XZ9AKUAW9 of 9 models qualify · AHRI 214837752
Non-ducted, 2 tons13.5(50 is the typical model of its size class)ACSH2419VR1-D3with ductless indoor unit AIWH2400VR1-D31 of 1 models qualify · AHRI 21710199190.9(50 is the typical model of its size class) (higher)CU-3Z22ABUC4 of 4 models qualify · AHRI 214837935
Non-ducted, 2.5–3 tons22.3(50 is the typical model of its size class)ACSH3621VR1-D3with ductless indoor unit AIWH3600VR1-D31 of 1 models qualify · AHRI 21710199073.0(50 is the typical model of its size class) (higher)CU-5YM36CBUC3 of 3 models qualify · AHRI 218027981
Non-ducted, 3.5–4.5 tonsNo models in this size class68.7(50 is the typical model of its size class)CU-6YM48CBUC1 of 1 models qualify · AHRI 218027984

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 typeAirdachAll-around score, best modelPanasonicAll-around score, best model
Ducted, up to 1.5 tonsNone on this board (0 of 2 models have all five ratings)78.4(50 is the typical model of its size class)CU-YM18CBUCwith ducted air handler CS-YM18CD1UW6 of 6 models have all five ratings · AHRI 218027970
Ducted, 2 tons35.7(50 is the typical model of its size class)A4TH24152MN1DLwith ducted air handler A4DH2400ME1DT1 of 3 models have all five ratings · AHRI 21833177278.8(50 is the typical model of its size class) (higher)CU-YM24CBUCwith ducted air handler CS-YM24CD1UW3 of 3 models have all five ratings · AHRI 218027971
Ducted, 2.5–3 tons57.4(50 is the typical model of its size class)A3TH36180OV1DGwith ducted air handler A3DH36000OE1DT3 of 7 models have all five ratings · AHRI 21879704584.0(50 is the typical model of its size class) (higher)CU-5YM36CBUC6 of 6 models have all five ratings · AHRI 218027980
Ducted, 3.5–4.5 tons59.5(50 is the typical model of its size class)A3TH60180OV1DGwith ducted air handler A3DH60000OE1DT4 of 10 models have all five ratings · AHRI 21879704683.9(50 is the typical model of its size class) (higher)CU-6YM48CBUC5 of 5 models have all five ratings · AHRI 218027983
Non-ducted, up to 1.5 tons44.9(50 is the typical model of its size class)ACSH0920VR1-D3with ductless indoor unit AIWH0900VR1-D35 of 5 models have all five ratings · AHRI 21710199295.9(50 is the typical model of its size class) (higher)CU-XZ9AKUACwith ductless indoor unit CS-XZ9AKUAW9 of 9 models have all five ratings · AHRI 214837752
Non-ducted, 2 tons24.5(50 is the typical model of its size class)ACSH2419VR1-D3with ductless indoor unit AIWH2400VR1-D31 of 1 models have all five ratings · AHRI 21710199187.8(50 is the typical model of its size class) (higher)CU-4Z24BBUC4 of 4 models have all five ratings · AHRI 216441721
Non-ducted, 2.5–3 tons30.4(50 is the typical model of its size class)ACSH3621VR1-D3with ductless indoor unit AIWH3600VR1-D31 of 1 models have all five ratings · AHRI 21710199066.3(50 is the typical model of its size class) (higher)CU-5YM36CBUC3 of 3 models have all five ratings · AHRI 218027979
Non-ducted, 3.5–4.5 tonsNo models in this size class62.9(50 is the typical model of its size class)CU-6YM48CBUC1 of 1 models have all five ratings · AHRI 218027982

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
RatingAirdachPanasonic
COP at 5°Fbeats 86% · 2.30A4TH42152MN1DLDucted, 3.5–4.5 tonsbeats 99% · 2.51CU-YM12CBUCNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 55% · 73%A3TH36180OV1DGDucted, 2.5–3 tonsbeats 99% · 134%CU-XZ9AKUACNon-ducted, up to 1.5 tons
HSPF2beats 64% · 8.8A3TH60180OV1DGDucted, 3.5–4.5 tonsbeats 99% · 11.0CU-6YM48CBUCDucted, 3.5–4.5 tons
SEER2beats 76% · 18.0A3TH60180OV1DGDucted, 3.5–4.5 tonsbeats 96% · 27.5CU-XZ9AKUACNon-ducted, up to 1.5 tons
EER2beats 83% · 12.0A4TH48152MN1DLDucted, 3.5–4.5 tonsbeats 97% · 16.4CU-XZ9AKUACNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 69% · 12,100 Btu/hACSH1820VR1-D3Non-ducted, up to 1.5 tonsbeats 99% · 22,000 Btu/hCU-2Z18ABUCNon-ducted, up to 1.5 tons

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