Skip to content

AUFIT vs Breeze33 heat pumps

Measured against models of the same size and duct type, Breeze33 scores higher on 4 of the 6 ratings. AUFIT has 45 outdoor models, Breeze33 has 45 outdoor models. AUFIT has no QMID on file and is not ranked.

New to heat pump ratings? The Simple view explains them in plain words →

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.
AUFIT and Breeze33 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, Breeze33 scores higher on 4 of the 6 ratings.
  • AUFIT
  • Breeze33
  • Other ranked manufacturers
AUFITBreeze33

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingAUFITBreeze33
Efficiency index53%median —62%median — · 3rd ranked
COP at 5°F64% (higher)median 2.0063% (higher)median 2.10 · 6th ranked
Capacity retention at 5°F51%median 75%58%median 71% · 8th ranked
HSPF252%median 9.066%median 9.5 · 5th ranked
SEER261% (higher)median 22.058% (higher)median 18.0 · 11th ranked
EER238%median 11.366%median 12.0 · 2nd ranked
Heating capacity at 5°F54%median 15,000 Btu/h60%median 20,000 Btu/h · 8th ranked
Outdoor models4545
AHRI certifications611,260

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardAUFITBreeze33
CEE 2025 Tier 1 (Split ASHP)84.4%38 models66.7%30 models
CEE 2026 Tier 1 (Split ASHP)82.2%37 models64.4%29 models
CEE Advanced Tier (Split ASHP)0%0 models4.4%2 models
Xcel Energy Colorado cold-climate ASHP (2025)77.8%35 models57.8%26 models
DOE Cold Climate Heat Pump Challenge0%0 models4.4%2 models
ENERGY STAR Cold Climate51.1%23 models55.6%25 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
  • AUFIT
  • Breeze33
  • 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 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 typeAUFITBreeze33
Ducted, up to 1.5 tons3 · index 52%9 · index 65%
Ducted, 2 tons3 · index 48%5 · index 61%
Ducted, 2.5–3 tons7 · index 57%10 · index 67%
Ducted, 3.5–4.5 tons4 · index 51%12 · index 67%
Ducted, 5 tons and upNone1 · index 60%
Non-ducted, up to 1.5 tons20 · index 52%9 · index 61%
Non-ducted, 2 tons6 · index 67%2 · index 55%
Non-ducted, 2.5–3 tons7 · index 41%8 · index 53%
Non-ducted, 3.5–4.5 tonsNone5 · index 55%

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 typeAUFITCold-climate score, best modelBreeze33Cold-climate score, best model
Ducted, up to 1.5 tons55.6(50 is the typical model of its size class)FM2-H18/2DR3A3 of 3 models qualify · AHRI 21760674385.5(50 is the typical model of its size class) (higher)BZ33-INV18OUT2-454-G3-Jwith ducted air handler BZ33-AHU18-454-G3-J6 of 9 models qualify · AHRI 215449744
Ducted, 2 tons59.1(50 is the typical model of its size class)FM3-H24/2DR3A3 of 3 models qualify · AHRI 21760674485.7(50 is the typical model of its size class) (higher)BZ33-HYP24OUT2-454-G3-Pwith ducted air handler BZ33-DIDU24-454-G3-P4 of 6 models qualify · AHRI 215449775
Ducted, 2.5–3 tons73.8(50 is the typical model of its size class)FM4-H30/2DR3A7 of 7 models qualify · AHRI 21760674583.2(50 is the typical model of its size class) (higher)BZ33-HYP36OUT2-454-G3-Pwith ducted air handler BZ33-DIDU36-454-G3-P6 of 9 models qualify · AHRI 215449776
Ducted, 3.5–4.5 tons72.3(50 is the typical model of its size class)XHU36HPV1AOwith ducted air handler XHU36HPV1AIAlso listed as FHU48HPV1AO4 of 4 models qualify · AHRI 21760677182.7(50 is the typical model of its size class) (higher)BZ33-HYP486Z2-454-G3-P7 of 12 models qualify · AHRI 215449809
Ducted, 5 tons and upNo models in this size classNone on this board (0 of 1 models qualify)
Non-ducted, up to 1.5 tons79.2(50 is the typical model of its size class)ASW-H18E3B2/*R3DI-D2with ductless indoor unit ASW-H18E3B2/*R3DI-D2Also listed as ASW-H18E3B2/**R3DI-D217 of 20 models qualify · AHRI 21790288796.7(50 is the typical model of its size class) (higher)BZ33-HYP06OUT2-454-G3-Pwith ductless indoor unit BZ33-HYP06WALL2-454-G3-P6 of 9 models qualify · AHRI 215449757
Non-ducted, 2 tons77.4(50 is the typical model of its size class)ASW-H24F6A2/ *R3DI-D7with ductless indoor unit ASW-H24F6A2/ *R3DI-D7Also listed as ASW-H24F6A2/**R3DI-D75 of 6 models qualify · AHRI 21790288889.4(50 is the typical model of its size class) (higher)BZ33-HYP24OUT2-454-G3-Pwith ductless indoor unit BZ33-CASS24-454-G3-P2 of 2 models qualify · AHRI 215449766
Non-ducted, 2.5–3 tons62.1(50 is the typical model of its size class)FM4-H30/2DR3A7 of 7 models qualify · AHRI 21760675089.4(50 is the typical model of its size class) (higher)BZ33-HYP36OUT2-454-G3-Pwith ductless indoor unit BZ33-IFCM36-454-G3-P6 of 8 models qualify · AHRI 215449784
Non-ducted, 3.5–4.5 tonsNo models in this size class73.4(50 is the typical model of its size class)BZ33-HYP486Z2-454-G3-P5 of 5 models qualify · AHRI 215449810

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 typeAUFITAll-around score, best modelBreeze33All-around score, best model
Ducted, up to 1.5 tons61.1(50 is the typical model of its size class)FM2-H18/2DR3A3 of 3 models have all five ratings · AHRI 21760674386.7(50 is the typical model of its size class) (higher)BZ33-HYP09OUT2-454-G3-Pwith ducted air handler BZ33-DIDU9-454-G3-P8 of 8 models have all five ratings · AHRI 215449772
Ducted, 2 tons66.1(50 is the typical model of its size class)FM3-H24/2DR3A3 of 3 models have all five ratings · AHRI 21760674478.4(50 is the typical model of its size class) (higher)BZ33-HYP24OUT2-454-G3-Pwith ducted air handler BZ33-DIDU24-454-G3-P7 of 7 models have all five ratings · AHRI 215449775
Ducted, 2.5–3 tons80.7(50 is the typical model of its size class)FM4-H30/2DR3A7 of 7 models have all five ratings · AHRI 21760674583.6(50 is the typical model of its size class) (higher)BZ33-HYP365Z2-454-G3-P9 of 9 models have all five ratings · AHRI 215449806
Ducted, 3.5–4.5 tons53.2(50 is the typical model of its size class)XHU36HPV1AOwith ducted air handler XHU36HPV1AIAlso listed as FHU48HPV1AO4 of 4 models have all five ratings · AHRI 21760677185.1(50 is the typical model of its size class) (higher)BZ33-HP486Z2-454-G3-P12 of 12 models have all five ratings · AHRI 215449797
Ducted, 5 tons and upNo models in this size class66.7(50 is the typical model of its size class)7HP14F60P-**Awith ducted air handler 7AH1AV60PX-1 of 1 models have all five ratings · AHRI 215792805
Non-ducted, up to 1.5 tons82.9(50 is the typical model of its size class)ASW-H18E3B2/*R3DI-D2with ductless indoor unit ASW-H18E3B2/*R3DI-D2Also listed as ASW-H18E3B2/**R3DI-D220 of 20 models have all five ratings · AHRI 21790288796.2(50 is the typical model of its size class) (higher)BZ33-HYP06OUT2-454-G3-Pwith ductless indoor unit BZ33-HYP06WALL2-454-G3-P9 of 9 models have all five ratings · AHRI 215449757
Non-ducted, 2 tons86.5(50 is the typical model of its size class) (higher)ASW-H24F6A2/ *R3DI-D7with ductless indoor unit ASW-H24F6A2/ *R3DI-D7Also listed as ASW-H24F6A2/**R3DI-D76 of 6 models have all five ratings · AHRI 21790288876.4(50 is the typical model of its size class)BZ33-HYP24OUT2-454-G3-Pwith ductless indoor unit BZ33-HYP24WALL2-454-G3-P2 of 2 models have all five ratings · AHRI 215449761
Non-ducted, 2.5–3 tons66.6(50 is the typical model of its size class)FM4-H30/2DR3A7 of 7 models have all five ratings · AHRI 21760674078.3(50 is the typical model of its size class) (higher)BZ33-HYP365Z2-454-G3-P8 of 8 models have all five ratings · AHRI 215449805
Non-ducted, 3.5–4.5 tonsNo models in this size class75.6(50 is the typical model of its size class)BZ33-HYP486Z2-454-G3-P5 of 5 models have all five ratings · AHRI 215449808

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
RatingAUFITBreeze33
COP at 5°Fbeats 89% · 2.25ASW-H18E3B2/*R3DI-D2Also listed as ASW-H18E3B2/**R3DI-D2Non-ducted, up to 1.5 tonsbeats 97% · 2.40BZ33-HYP06OUT2-454-G3-PNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 79% · 90%FM3-H24/2DR3ANon-ducted, 2 tonsbeats 98% · 126%BZ33-HYP09OUT2-454-G3-PNon-ducted, up to 1.5 tons
HSPF2beats 84% · 10.0FM4-H36/2DR3ADucted, 2.5–3 tonsbeats 99% · 14.8BZ33-HYP06OUT2-454-G3-PNon-ducted, up to 1.5 tons
SEER2beats 95% · 25.0ASW-H24F6A2/ *R3DI-D7Also listed as ASW-H24F6A2/**R3DI-D7Non-ducted, 2 tonsbeats 97% · 25.0BZ33-HP274Z2-454-G3-PNon-ducted, 2.5–3 tons
EER2beats 96% · 14.0ASW-H24F6A2/ *R3DI-D7Also listed as ASW-H24F6A2/**R3DI-D7Non-ducted, 2 tonsbeats 99% · 18.0BZ33-HYP06OUT2-454-G3-PNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 86% · 15,000 Btu/hASW-H18E3B2/*R3DI-D2Also listed as ASW-H18E3B2/**R3DI-D2Non-ducted, up to 1.5 tonsbeats 98% · 39,500 Btu/hBZ33-HYP36OUT2-454-G3-PNon-ducted, 2.5–3 tons

More comparisons