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APOWER vs ZAFRO heat pumps

Measured against models of the same size and duct type, APOWER scores higher on 5 of the 6 ratings. APOWER has 19 outdoor models, ZAFRO has 19 outdoor models. APOWER and ZAFRO 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.
APOWER and ZAFRO 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, APOWER scores higher on 5 of the 6 ratings.
  • APOWER
  • ZAFRO
  • Other ranked manufacturers
APOWERZAFRO

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingAPOWERZAFRO
Efficiency index58% (higher)median —33% (higher)median —
COP at 5°F49%median 2.0062%median 2.00
Capacity retention at 5°F65% (higher)median 90%33% (higher)median 70%
HSPF243% (higher)median 9.222% (higher)median 9.0
SEER261% (higher)median 21.033% (higher)median 19.0
EER267% (higher)median 12.021% (higher)median 10.5
Heating capacity at 5°F62% (higher)median 14,600 Btu/h35% (higher)median 8,900 Btu/h
Outdoor models1919
AHRI certifications5519

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardAPOWERZAFRO
CEE 2025 Tier 1 (Split ASHP)89.5%17 models63.2%12 models
CEE 2026 Tier 1 (Split ASHP)89.5%17 models63.2%12 models
CEE Advanced Tier (Split ASHP)15.8%3 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)94.7%18 models57.9%11 models
DOE Cold Climate Heat Pump Challenge15.8%3 models0%0 models
ENERGY STAR Cold Climate0%0 models0%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
  • APOWER
  • ZAFRO
  • 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 typeAPOWERZAFRO
Ducted, up to 1.5 tons5 · index 72%None
Ducted, 2 tons2 · index 64%None
Ducted, 2.5–3 tons4 · index 61%None
Ducted, 3.5–4.5 tons2 · index 74%None
Non-ducted, up to 1.5 tons9 · index 45%15 · index 35%
Non-ducted, 2 tons3 · index 55%4 · index 24%
Non-ducted, 2.5–3 tons4 · index 60%None
Non-ducted, 3.5–4.5 tons1 · index 68%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 typeAPOWERCold-climate score, best modelZAFROCold-climate score, best model
Ducted, up to 1.5 tons69.9(50 is the typical model of its size class)AP24HP230VBOwith ducted air handler APDE09HP230VAIAlso listed as AP09HP230VBO5 of 5 models qualify · AHRI 215832423No models in this size class
Ducted, 2 tons49.0(50 is the typical model of its size class)AP3M24HP230VMO1 of 1 models qualify · AHRI 215832436No models in this size class
Ducted, 2.5–3 tons76.9(50 is the typical model of its size class)APFH36HP230VAO-R32with ducted air handler APF36HP230VAI-R325 of 5 models qualify · AHRI 217655829No models in this size class
Ducted, 3.5–4.5 tons85.1(50 is the typical model of its size class)APFH60HP230VAO-R32with ducted air handler APF60HP230VAI-R322 of 2 models qualify · AHRI 217655831No models in this size class
Non-ducted, up to 1.5 tons62.2(50 is the typical model of its size class) (higher)AP09HP230VBOwith ductless indoor unit AP09HP230VBI9 of 9 models qualify · AHRI 21583240849.4(50 is the typical model of its size class)A7202P-9Kwith ductless indoor unit A7202S-9K11 of 15 models qualify · AHRI 217022883
Non-ducted, 2 tons67.5(50 is the typical model of its size class)AP3M24HP230VMO2 of 3 models qualify · AHRI 215832435None on this board (0 of 4 models qualify)
Non-ducted, 2.5–3 tons77.2(50 is the typical model of its size class)AP5M36HP230VMOAlso listed as AP4M36HP230VMO4 of 4 models qualify · AHRI 215832441No models in this size class
Non-ducted, 3.5–4.5 tons66.5(50 is the typical model of its size class)AP5M42HP230VMO1 of 1 models qualify · AHRI 215832444No 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 typeAPOWERAll-around score, best modelZAFROAll-around score, best model
Ducted, up to 1.5 tons83.6(50 is the typical model of its size class)AP24HP230VBOwith ducted air handler APDE09HP230VAIAlso listed as AP09HP230VBO5 of 5 models have all five ratings · AHRI 215832423No models in this size class
Ducted, 2 tons72.4(50 is the typical model of its size class)APFH36HP230VAO-R32with ducted air handler APF24HP230VAI-R322 of 2 models have all five ratings · AHRI 217655828No models in this size class
Ducted, 2.5–3 tons64.6(50 is the typical model of its size class)AP36HP230VAOwith ducted air handler AP36HP230VDAI4 of 4 models have all five ratings · AHRI 215832432No models in this size class
Ducted, 3.5–4.5 tons83.1(50 is the typical model of its size class)APFH60HP230VAO-R32with ducted air handler APF48HP230VAI-R322 of 2 models have all five ratings · AHRI 217655830No models in this size class
Non-ducted, up to 1.5 tons78.0(50 is the typical model of its size class) (higher)AP09HP230VBOwith ductless indoor unit AP09HP230VBI9 of 9 models have all five ratings · AHRI 21583240839.5(50 is the typical model of its size class)A7201P-9Kwith ductless indoor unit A7201S-9KAlso listed as A7201PW-9K, SE7203P-9K, SE7203P-9K-ASZ15 of 15 models have all five ratings · AHRI 217022881
Non-ducted, 2 tons72.2(50 is the typical model of its size class) (higher)AP24HP230VBOwith ductless indoor unit AP24HP230VBI3 of 3 models have all five ratings · AHRI 21583241123.5(50 is the typical model of its size class)A7202P-24Kwith ductless indoor unit A7202S-24KAlso listed as A7202PW-24K, SE7203P-24K, SE7203P-24K-ASZ4 of 4 models have all five ratings · AHRI 217022890
Non-ducted, 2.5–3 tons70.5(50 is the typical model of its size class)AP4M30HP230VMO4 of 4 models have all five ratings · AHRI 215832438No models in this size class
Non-ducted, 3.5–4.5 tons67.7(50 is the typical model of its size class)AP5M42HP230VMO1 of 1 models have all five ratings · AHRI 215832444No 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
RatingAPOWERZAFRO
COP at 5°Fbeats 88% · 2.10AP5M36HP230VMOAlso listed as AP4M36HP230VMONon-ducted, 2.5–3 tonsbeats 74% · 2.09A7202P-18KAlso listed as A7202PW-18K, SE7203S-18K, SE7203S-18K-ASZNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 94% · 100%APFH60HP230VAO-R32Ducted, 3.5–4.5 tonsbeats 83% · 98%A7202P-9KNon-ducted, up to 1.5 tons
HSPF2beats 90% · 10.5APFH60HP230VAO-R32Ducted, 3.5–4.5 tonsbeats 29% · 9.0A7201P-9KAlso listed as A7201PW-9K, SE7203P-9K, SE7203P-9K-ASZNon-ducted, up to 1.5 tons
SEER2beats 99% · 22.5AP18HP230VBODucted, up to 1.5 tonsbeats 56% · 22.0A7201P-12KAlso listed as A7201PW-12KNon-ducted, up to 1.5 tons
EER2beats 97% · 14.2AP24HP230VBOAlso listed as AP09HP230VBODucted, up to 1.5 tonsbeats 28% · 11.0A7202P-18KAlso listed as A7202PW-18K, SE7203S-18K, SE7203S-18K-ASZNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 98% · 54,000 Btu/hAPFH60HP230VAO-R32Ducted, 3.5–4.5 tonsbeats 73% · 12,600 Btu/hA7202P-18KAlso listed as A7202PW-18K, SE7203S-18K, SE7203S-18K-ASZNon-ducted, up to 1.5 tons

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