Skip to content
Rebate.Blue

Carrier vs COSTWAY heat pumps

Measured against models of the same size and duct type, COSTWAY scores higher on 5 of the 6 ratings. Carrier has 816 outdoor models, COSTWAY has 47 outdoor models.

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.
Carrier and COSTWAY 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, COSTWAY scores higher on 5 of the 6 ratings.
  • Carrier
  • COSTWAY
  • Other ranked manufacturers
CarrierCOSTWAY

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingCarrierCOSTWAY
Efficiency index48% (higher)median — · 23rd ranked46% (higher)median — · 26th ranked
COP at 5°F56%median 2.04 · 16th ranked57%median 2.00 · 13th ranked
Capacity retention at 5°F34%median 53% · 28th ranked35%median 70% · 27th ranked
HSPF240%median 7.8 · 25th ranked45%median 9.0 · 18th ranked
SEER242%median 15.2 · 23rd ranked49%median 20.5 · 18th ranked
EER259% (higher)median 11.5 · 8th ranked36% (higher)median 11.0 · 29th ranked
Heating capacity at 5°F37%median 18,600 Btu/h · 27th ranked39%median 11,600 Btu/h · 26th ranked
Outdoor models81647
AHRI certifications521,40348

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCarrierCOSTWAY
CEE 2025 Tier 1 (Split ASHP)40.2%328 models63.8%30 models
CEE 2026 Tier 1 (Split ASHP)35.3%288 models63.8%30 models
CEE Advanced Tier (Split ASHP)1%8 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)27.2%222 models42.6%20 models
DOE Cold Climate Heat Pump Challenge1%8 models0%0 models
ENERGY STAR Cold Climate26.7%218 models29.8%14 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 · 6 groups where both have models
  • Carrier
  • COSTWAY
  • 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 typeCarrierCOSTWAY
Ducted, up to 1.5 tons69 · index 56%None
Ducted, 2 tons93 · index 47%1 · index 37%
Ducted, 2.5–3 tons228 · index 45%4 · index 61%
Ducted, 3.5–4.5 tons306 · index 44%2 · index 46%
Ducted, 5 tons and up68 · index 50%None
Non-ducted, up to 1.5 tons54 · index 59%29 · index 41%
Non-ducted, 2 tons16 · index 57%9 · index 50%
Non-ducted, 2.5–3 tons30 · index 55%3 · index 65%
Non-ducted, 3.5–4.5 tons22 · index 47%None
Non-ducted, 5 tons and up4 · index 57%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 typeCarrierCold-climate score, best modelCOSTWAYCold-climate score, best model
Ducted, up to 1.5 tons93.5(50 is the typical model of its size class)37MAHAQ06AA3with ducted air handler 45MBDAQ06XA3Also sold as Arcoaire D5CSHAH06AAK30 of 68 models qualify · AHRI 215323798No models in this size class
Ducted, 2 tons85.7(50 is the typical model of its size class) (higher)37MAHAQ24AA3with ducted air handler 45MBDAQ24XH3Also sold as Arcoaire D5CSHAH24AAK44 of 94 models qualify · AHRI 21532381742.5(50 is the typical model of its size class)FP11018USwith ducted air handler FP11021US1 of 1 models qualify · AHRI 217169696
Ducted, 2.5–3 tons83.2(50 is the typical model of its size class) (higher)37MGHAQ36EA3Also sold as Arcoaire D5CMHAH36EAK59 of 229 models qualify · AHRI 21535711964.8(50 is the typical model of its size class)FP10982USwith ducted air handler FP10985US4 of 4 models qualify · AHRI 217221416
Ducted, 3.5–4.5 tons89.7(50 is the typical model of its size class) (higher)H5H0V48*K*AAA*with indoor coil D(A,C,E)61A3J+TDR and furnace *80CSU0802120A63 of 293 models qualify · AHRI 21837271464.7(50 is the typical model of its size class)FP10983USwith ducted air handler FP10986US2 of 2 models qualify · AHRI 217221417
Ducted, 5 tons and up94.7(50 is the typical model of its size class)MCY-MUB0608HS2P-UL19 of 80 models qualify · AHRI 216763249No models in this size class
Non-ducted, up to 1.5 tons96.8(50 is the typical model of its size class) (higher)D5CPRAH18AAwith ductless indoor unit D5FPHAH18XAK35 of 54 models qualify · AHRI 21541321479.2(50 is the typical model of its size class)FP10897US-12WHwith ductless indoor unit FP10897US-22WH10 of 29 models qualify · AHRI 215876635
Non-ducted, 2 tons89.4(50 is the typical model of its size class) (higher)37MAHAQ24AA3with ductless indoor unit 45MBCAQ24XA3Also sold as Arcoaire D5CSHAH24AAK15 of 16 models qualify · AHRI 21532381577.4(50 is the typical model of its size class)FP10898US-12WHwith ductless indoor unit FP10898US-22WH2 of 9 models qualify · AHRI 217178697
Non-ducted, 2.5–3 tons89.4(50 is the typical model of its size class) (higher)37MBHAQ36AA3with ductless indoor unit 45MCFAQ36XA3Also sold as Arcoaire D5CLHAH36AAK21 of 30 models qualify · AHRI 21532384357.5(50 is the typical model of its size class)FP11134US*3 of 3 models qualify · AHRI 218752594
Non-ducted, 3.5–4.5 tons79.4(50 is the typical model of its size class)RAV-BP421AT2P-ULwith ductless indoor unit RAV-HB421CTP-UL18 of 22 models qualify · AHRI 216415472No models in this size class
Non-ducted, 5 tons and up50.6(50 is the typical model of its size class)37VMB060HDS3-11 of 4 models qualify · AHRI 216369714No 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 typeCarrierAll-around score, best modelCOSTWAYAll-around score, best model
Ducted, up to 1.5 tons95.6(50 is the typical model of its size class)37MAHAQ06AA3with ducted air handler 45MBDAQ06XA3Also sold as Arcoaire D5CSHAH06AAK64 of 68 models have all five ratings · AHRI 215323798No models in this size class
Ducted, 2 tons82.9(50 is the typical model of its size class) (higher)27VNA324A*030*with ducted air handler FE5BN(B,X)C36L*+UIAlso sold as Bryant Heating and Cooling Systems 293VAN024**AA, HEIL B5H3V24*K*AAA90 of 90 models have all five ratings · AHRI 21762425237.2(50 is the typical model of its size class)FP11018USwith ducted air handler FP11021US1 of 1 models have all five ratings · AHRI 217169696
Ducted, 2.5–3 tons88.0(50 is the typical model of its size class) (higher)RAV-BP301AT2P-ULwith ducted air handler RAV-HB301BTP-UL209 of 230 models have all five ratings · AHRI 21641547767.3(50 is the typical model of its size class)FP10982USwith ducted air handler FP10985US4 of 4 models have all five ratings · AHRI 217221416
Ducted, 3.5–4.5 tons90.4(50 is the typical model of its size class) (higher)27VNA154A*030*with ducted air handler FE5BNBD60L*+UIAlso sold as Bryant Heating and Cooling Systems 291VAN054**AA241 of 275 models have all five ratings · AHRI 21558791754.1(50 is the typical model of its size class)FP10983USwith ducted air handler FP10986US2 of 2 models have all five ratings · AHRI 217221417
Ducted, 5 tons and up89.1(50 is the typical model of its size class)27VNA360A*030*with ducted air handler FE5BNBD60L*+UIAlso sold as Bryant Heating and Cooling Systems 293VAN060**AA, HEIL B5H3V60*K*AAA81 of 101 models have all five ratings · AHRI 215931484No models in this size class
Non-ducted, up to 1.5 tons96.5(50 is the typical model of its size class) (higher)37MAHAQ06AA3with ductless indoor unit 45MAHAQ06XA3Also sold as Arcoaire D5CSHAH06AAK51 of 54 models have all five ratings · AHRI 21532374282.9(50 is the typical model of its size class)FP10897US-12WHwith ductless indoor unit FP10897US-22WH24 of 29 models have all five ratings · AHRI 215876635
Non-ducted, 2 tons88.5(50 is the typical model of its size class) (higher)37MARAQ24AA3with ductless indoor unit 45MAHAQ24XA3Also sold as Arcoaire D5CSRAH24AAK15 of 16 models have all five ratings · AHRI 21532375286.5(50 is the typical model of its size class)FP10898US-12WHwith ductless indoor unit FP10898US-22WH8 of 9 models have all five ratings · AHRI 217178697
Non-ducted, 2.5–3 tons91.0(50 is the typical model of its size class) (higher)RAV-BP301AT2P-ULwith ductless indoor unit RAV-HB301UTP-UL29 of 30 models have all five ratings · AHRI 21641546566.6(50 is the typical model of its size class)FP10840US-WH3 of 3 models have all five ratings · AHRI 216771328
Non-ducted, 3.5–4.5 tons84.9(50 is the typical model of its size class)MCY-MUB0488HS2P-UL20 of 22 models have all five ratings · AHRI 216760288No models in this size class
Non-ducted, 5 tons and up69.0(50 is the typical model of its size class)MCY-MUB0608HS2P-UL4 of 4 models have all five ratings · AHRI 216763251No 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
RatingCarrierCOSTWAY
COP at 5°Fbeats 100% · 2.50MCY-MUB0488HS2P-ULNon-ducted, 3.5–4.5 tonsbeats 89% · 2.25FP10897US-12WHNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 100% · 150%37MPRAQ06AA3Non-ducted, up to 1.5 tonsbeats 79% · 90%FP10841US-WHNon-ducted, 2 tons
HSPF2beats 100% · 15.637MPRAQ06AA3Non-ducted, up to 1.5 tonsbeats 96% · 10.5FP11135US*Ducted, 2.5–3 tons
SEER2beats 100% · 35.137MPRAQ06AA3Non-ducted, up to 1.5 tonsbeats 98% · 21.0FP11134US*Ducted, 2.5–3 tons
EER2beats 100% · 17.2MCY-MUB0368HS2P-ULNon-ducted, 2.5–3 tonsbeats 96% · 14.0FP10898US-12WHNon-ducted, 2 tons
Heating capacity at 5°Fbeats 100% · 61,000 Btu/hH5H0V60*K*AAA*Ducted, 3.5–4.5 tonsbeats 86% · 15,000 Btu/hFP10897US-12WHNon-ducted, up to 1.5 tons

More comparisons

Pick any two manufacturers