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ACC vs CONFORTOTAL heat pumps

Measured against models of the same size and duct type, ACC scores higher on 4 of the 6 ratings. ACC has 4 outdoor models, CONFORTOTAL has 4 outdoor models. ACC and CONFORTOTAL 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.
ACC and CONFORTOTAL 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, ACC scores higher on 4 of the 6 ratings.
  • ACC
  • CONFORTOTAL
  • Other ranked manufacturers
ACCCONFORTO…

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingACCCONFORTOTAL
Efficiency index55% (higher)median —28% (higher)median —
COP at 5°F67% (higher)median 2.0819% (higher)median 1.80
Capacity retention at 5°F77% (higher)median 59%21% (higher)median 63%
HSPF255% (higher)median 8.621% (higher)median 8.5
SEER232%median 15.336%median 19.5
EER212%median 8.636%median 10.5
Heating capacity at 5°F79% (higher)median 35,600 Btu/h48% (higher)median 14,400 Btu/h
Outdoor models44
AHRI certifications54

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardACCCONFORTOTAL
CEE 2025 Tier 1 (Split ASHP)0%0 models75%3 models
CEE 2026 Tier 1 (Split ASHP)0%0 models50%2 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)0%0 models0%0 models
DOE Cold Climate Heat Pump Challenge0%0 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 · 1 groups where both have models
  • ACC
  • CONFORTOTAL
  • All models of the group
Ducted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsDucted, 5 tons and up1.90239 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2.5–3 tons1.85975 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 typeACCCONFORTOTAL
Ducted, 2.5–3 tons1 · index —None
Ducted, 3.5–4.5 tons1 · index —None
Ducted, 5 tons and up1 · index 55%None
Non-ducted, 2.5–3 tons1 · index —2 · index 29%
Non-ducted, up to 1.5 tonsNone2 · index 27%

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 typeACCCold-climate score, best modelCONFORTOTALCold-climate score, best model
Ducted, 2.5–3 tonsNone on this board (0 of 1 models qualify)No models in this size class
Ducted, 3.5–4.5 tonsNone on this board (0 of 1 models qualify)No models in this size class
Ducted, 5 tons and upNone on this board (0 of 1 models qualify)No models in this size class
Non-ducted, up to 1.5 tonsNo models in this size classNone on this board (0 of 2 models qualify)
Non-ducted, 2.5–3 tonsNone on this board (0 of 1 models qualify)None on this board (0 of 2 models qualify)

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 typeACCAll-around score, best modelCONFORTOTALAll-around score, best model
Ducted, 2.5–3 tonsNone on this board (0 of 1 models have all five ratings)No models in this size class
Ducted, 3.5–4.5 tonsNone on this board (0 of 1 models have all five ratings)No models in this size class
Ducted, 5 tons and up54.5(50 is the typical model of its size class)MSH603E18MCAAwith ducted air handler MST363E18ADAA1 of 1 models have all five ratings · AHRI 203991110No models in this size class
Non-ducted, up to 1.5 tonsNo models in this size class27.2(50 is the typical model of its size class)CICON182-MAlso listed as CICON242-M2 of 2 models have all five ratings · AHRI 213296000
Non-ducted, 2.5–3 tonsNone on this board (0 of 1 models have all five ratings)29.5(50 is the typical model of its size class)CICON362-M2 of 2 models have all five ratings · AHRI 213296003

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
RatingACCCONFORTOTAL
COP at 5°Fbeats 67% · 2.08MSH603E18MCAADucted, 5 tons and upbeats 22% · 1.80CICON182-MAlso listed as CICON242-MNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 73% · 59%MSH603E18MCAADucted, 5 tons and upbeats 22% · 65%CICON182-MAlso listed as CICON242-MNon-ducted, up to 1.5 tons
HSPF2beats 80% · 9.3MSH483E18MCAADucted, 3.5–4.5 tonsbeats 25% · 8.5CICON272-MNon-ducted, 2.5–3 tons
SEER2beats 54% · 15.4MSH603E18MCAADucted, 5 tons and upbeats 35% · 19.0CICON272-MNon-ducted, 2.5–3 tons
EER2beats 16% · 9.0MSH603E18MCAADucted, 5 tons and upbeats 39% · 10.0CICON272-MNon-ducted, 2.5–3 tons
Heating capacity at 5°Fbeats 78% · 35,600 Btu/hMSH603E18MCAADucted, 5 tons and upbeats 78% · 13,000 Btu/hCICON182-MAlso listed as CICON242-MNon-ducted, up to 1.5 tons

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