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Aprodr vs Viessmann heat pumps

Measured against models of the same size and duct type, Aprodr and Viessmann split the 6 ratings 3–3. Aprodr has 44 outdoor models, Viessmann has 43 outdoor models. Aprodr and Viessmann 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.
Aprodr and Viessmann 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, Aprodr and Viessmann split the 6 ratings 3–3.
  • Aprodr
  • Viessmann
  • Other ranked manufacturers
AprodrViessmann

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingAprodrViessmann
Efficiency index59%median —60%median —
COP at 5°F65% (higher)median 2.0453% (higher)median 2.00
Capacity retention at 5°F45%median 72%72%median 88%
HSPF266%median 9.874%median 9.5
SEER265% (higher)median 20.159% (higher)median 17.0
EER254% (higher)median 12.049% (higher)median 11.0
Heating capacity at 5°F52%median 18,200 Btu/h74%median 25,000 Btu/h
Outdoor models4443
AHRI certifications67170

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardAprodrViessmann
CEE 2025 Tier 1 (Split ASHP)90.9%40 models83.7%36 models
CEE 2026 Tier 1 (Split ASHP)86.4%38 models83.7%36 models
CEE Advanced Tier (Split ASHP)2.3%1 models4.7%2 models
Xcel Energy Colorado cold-climate ASHP (2025)75%33 models79.1%34 models
DOE Cold Climate Heat Pump Challenge2.3%1 models4.7%2 models
ENERGY STAR Cold Climate77.3%34 models69.8%30 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 · 8 groups where both have models
  • Aprodr
  • Viessmann
  • 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 modelsDucted, 5 tons and up2.00321 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 modelsNon-ducted, 5 tons and up2.0585 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 typeAprodrViessmann
Ducted, up to 1.5 tons6 · index 72%8 · index 67%
Ducted, 2 tons4 · index 67%7 · index 59%
Ducted, 2.5–3 tons6 · index 61%16 · index 55%
Ducted, 3.5–4.5 tons6 · index 62%11 · index 57%
Ducted, 5 tons and up2 · index 64%None
Non-ducted, up to 1.5 tons19 · index 59%5 · index 77%
Non-ducted, 2 tons5 · index 55%2 · index 79%
Non-ducted, 2.5–3 tons4 · index 42%6 · index 57%
Non-ducted, 3.5–4.5 tons2 · index 43%4 · index 52%
Non-ducted, 5 tons and up1 · index 27%None

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 typeAprodrCold-climate score, best modelViessmannCold-climate score, best model
Ducted, up to 1.5 tons85.5(50 is the typical model of its size class)AHU3G-18HFN-Bwith ducted air handler AHU3G-18HFN-A5 of 6 models qualify · AHRI 21804563086.7(50 is the typical model of its size class) (higher)D5CUHAH18AAKwith ducted air handler D5MUWAQ18XA37 of 8 models qualify · AHRI 218668521
Ducted, 2 tons77.1(50 is the typical model of its size class)ALC24-24H1Bwith ducted air handler DIU-24HWFN104 of 4 models qualify · AHRI 21803585385.7(50 is the typical model of its size class) (higher)D5CSHAH24AAKwith ducted air handler D5FSDAH24XHK7 of 7 models qualify · AHRI 217178805
Ducted, 2.5–3 tons77.4(50 is the typical model of its size class)AHU3G-36HFN-Bwith ducted air handler AHU3G-36HFN-A4 of 6 models qualify · AHRI 21804563683.2(50 is the typical model of its size class) (higher)D5CMHAH36EAK11 of 16 models qualify · AHRI 217178827
Ducted, 3.5–4.5 tons77.9(50 is the typical model of its size class)AM6OG-48HFN16 of 6 models qualify · AHRI 21733432582.7(50 is the typical model of its size class) (higher)D5CMHAH48FAK10 of 11 models qualify · AHRI 217178830
Ducted, 5 tons and upNone on this board (0 of 2 models qualify)No models in this size class
Non-ducted, up to 1.5 tons85.9(50 is the typical model of its size class)ASG24-09H220V1Bwith ductless indoor unit ASG24-09H220V1A15 of 19 models qualify · AHRI 21803584696.7(50 is the typical model of its size class) (higher)D5CSHAH06AAKwith ductless indoor unit D5FSHAH06XAK5 of 5 models qualify · AHRI 217178781
Non-ducted, 2 tons73.7(50 is the typical model of its size class)ALC24-24H1Bwith ductless indoor unit CCA22-24HRFN15 of 5 models qualify · AHRI 21803585889.4(50 is the typical model of its size class) (higher)D5CSHAH24AAKwith ductless indoor unit D5FSCAH24XAK2 of 2 models qualify · AHRI 217178803
Non-ducted, 2.5–3 tons62.8(50 is the typical model of its size class)ALC24-36H1Bwith ductless indoor unit CCA22-36HRFN12 of 4 models qualify · AHRI 21803585989.4(50 is the typical model of its size class) (higher)D5CLHAH36AAKwith ductless indoor unit D5FCFAH36XAK4 of 6 models qualify · AHRI 217178810
Non-ducted, 3.5–4.5 tons60.1(50 is the typical model of its size class)AM6OG-48HFN12 of 2 models qualify · AHRI 21733432675.5(50 is the typical model of its size class) (higher)D5CMHAH48FAK4 of 4 models qualify · AHRI 217178831
Non-ducted, 5 tons and upNone on this board (0 of 1 models qualify)No models in this size class

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 typeAprodrAll-around score, best modelViessmannAll-around score, best model
Ducted, up to 1.5 tons80.8(50 is the typical model of its size class)ALC24-09H1Bwith ducted air handler DIU-09HWFN106 of 6 models have all five ratings · AHRI 21803585087.4(50 is the typical model of its size class) (higher)D5CSHAH09AAKwith ducted air handler D5FSDAH12XAK8 of 8 models have all five ratings · AHRI 217178787
Ducted, 2 tons78.8(50 is the typical model of its size class)ALC24-24H1Bwith ducted air handler DIU-24HWFN104 of 4 models have all five ratings · AHRI 21803585380.0(50 is the typical model of its size class) (higher)D5CSHAH24AAKwith ducted air handler D5FSDAH24XHK7 of 7 models have all five ratings · AHRI 217178805
Ducted, 2.5–3 tons74.9(50 is the typical model of its size class)AHU3G-36HFN-Bwith ducted air handler AHU3G-36HFN-A6 of 6 models have all five ratings · AHRI 21804563685.5(50 is the typical model of its size class) (higher)D5CMHAH30EAK16 of 16 models have all five ratings · AHRI 217178824
Ducted, 3.5–4.5 tons85.1(50 is the typical model of its size class) (higher)AM6OG-48HFN16 of 6 models have all five ratings · AHRI 21733432584.6(50 is the typical model of its size class)D5CMHAH48FAK11 of 11 models have all five ratings · AHRI 217178830
Ducted, 5 tons and up65.3(50 is the typical model of its size class)ALC24-60H1Bwith ducted air handler DIU-60HWFN102 of 2 models have all five ratings · AHRI 218035870No models in this size class
Non-ducted, up to 1.5 tons86.7(50 is the typical model of its size class)ASG24-09H220V1Bwith ductless indoor unit ASG24-09H220V1A19 of 19 models have all five ratings · AHRI 21803584696.5(50 is the typical model of its size class) (higher)D5CSHAH06AAKwith ductless indoor unit D5FSHAH06XAK5 of 5 models have all five ratings · AHRI 217178781
Non-ducted, 2 tons74.3(50 is the typical model of its size class)ASG24-24H1Bwith ductless indoor unit ASG24-24H1A5 of 5 models have all five ratings · AHRI 21803584978.7(50 is the typical model of its size class) (higher)D5CSHAH24AAKwith ductless indoor unit D5FSHAH24XAK2 of 2 models have all five ratings · AHRI 217178802
Non-ducted, 2.5–3 tons58.3(50 is the typical model of its size class)AM5OG-36HFN14 of 4 models have all five ratings · AHRI 21733432185.8(50 is the typical model of its size class) (higher)D5CMHAH30EAK6 of 6 models have all five ratings · AHRI 217178823
Non-ducted, 3.5–4.5 tons52.8(50 is the typical model of its size class)AM6OG-48HFN12 of 2 models have all five ratings · AHRI 21733432676.7(50 is the typical model of its size class) (higher)D5CMHAH48FAK4 of 4 models have all five ratings · AHRI 217178829
Non-ducted, 5 tons and up32.5(50 is the typical model of its size class)AM6OG-55HFN11 of 1 models have all five ratings · AHRI 217334327No models in this size class

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
RatingAprodrViessmann
COP at 5°Fbeats 99% · 2.51ALC24-12H1BNon-ducted, up to 1.5 tonsbeats 97% · 2.40D5CSHAH06AAKNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 95% · 103%AHU3G-18HFN-BDucted, up to 1.5 tonsbeats 100% · 116%D5CMHAH30EAKNon-ducted, 2.5–3 tons
HSPF2beats 98% · 10.8AHU3G-30HFN-BDucted, 2.5–3 tonsbeats 99% · 14.8D5CSHAH06AAKNon-ducted, up to 1.5 tons
SEER2beats 96% · 20.4AM6OG-48HFN1Ducted, 3.5–4.5 tonsbeats 99% · 20.5D5CMHAH48FAKDucted, 3.5–4.5 tons
EER2beats 91% · 15.0ASG24-09H1BNon-ducted, up to 1.5 tonsbeats 99% · 18.0D5CSHAH06AAKNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 98% · 54,000 Btu/hAHU3G-60HFN-BDucted, 3.5–4.5 tonsbeats 98% · 19,600 Btu/hD5CUHAH18AAKDucted, up to 1.5 tons

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