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Bestcold vs TGM heat pumps

Measured against models of the same size and duct type, Bestcold and TGM split the 6 ratings 3–3. Bestcold has 79 outdoor models, TGM has 77 outdoor models. Bestcold and TGM 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.
Bestcold and TGM 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, Bestcold and TGM split the 6 ratings 3–3.
  • Bestcold
  • TGM
  • Other ranked manufacturers
BestcoldTGM

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingBestcoldTGM
Efficiency index46% (higher)median —45% (higher)median —
COP at 5°F45%median 1.9748%median 1.91
Capacity retention at 5°F43% (higher)median 72%42% (higher)median 71%
HSPF248% (higher)median 9.041% (higher)median 8.6
SEER251% (higher)median 18.545% (higher)median 19.0
EER239%median 11.242%median 11.2
Heating capacity at 5°F46%median 18,950 Btu/h47%median 14,100 Btu/h
Outdoor models7977
AHRI certifications85152

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardBestcoldTGM
CEE 2025 Tier 1 (Split ASHP)68.4%54 models58.4%45 models
CEE 2026 Tier 1 (Split ASHP)68.4%54 models57.1%44 models
CEE Advanced Tier (Split ASHP)1.3%1 models1.3%1 models
Xcel Energy Colorado cold-climate ASHP (2025)65.8%52 models54.5%42 models
DOE Cold Climate Heat Pump Challenge1.3%1 models1.3%1 models
ENERGY STAR Cold Climate10.1%8 models20.8%16 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
  • Bestcold
  • TGM
  • 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 typeBestcoldTGM
Ducted, up to 1.5 tons1 · index —5 · index 62%
Ducted, 2 tons9 · index 63%8 · index 67%
Ducted, 2.5–3 tons9 · index 50%10 · index 50%
Ducted, 3.5–4.5 tons18 · index 54%11 · index 61%
Ducted, 5 tons and upNone2 · index 69%
Non-ducted, up to 1.5 tons26 · index 43%32 · index 34%
Non-ducted, 2 tons5 · index 33%9 · index 43%
Non-ducted, 2.5–3 tons8 · index 35%8 · index 40%
Non-ducted, 3.5–4.5 tons3 · index 29%5 · index 43%

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 typeBestcoldCold-climate score, best modelTGMCold-climate score, best model
Ducted, up to 1.5 tonsNone on this board (0 of 1 models qualify)69.8(50 is the typical model of its size class)MRS5VHT18ASwith ducted air handler MFC5VHT18S3 of 5 models qualify · AHRI 217274613
Ducted, 2 tons80.9(50 is the typical model of its size class) (higher)MYUSA24NA23BCH19-Owith ducted air handler MYUSA24NA23BCH19-I8 of 9 models qualify · AHRI 21789646377.1(50 is the typical model of its size class)MRS5VHT24ASwith ducted air handler MFC5VHT24S6 of 8 models qualify · AHRI 217274615
Ducted, 2.5–3 tons70.3(50 is the typical model of its size class) (higher)MYUA36NA23BCH19-Owith ducted air handler MYUA36NA23BCH19-I6 of 9 models qualify · AHRI 21789646063.6(50 is the typical model of its size class)MTVC2OCN036Awith ducted air handler MTA20C036A3 of 10 models qualify · AHRI 218044247
Ducted, 3.5–4.5 tons76.6(50 is the typical model of its size class) (higher)MYUSA48NA23BCH18-Owith ducted air handler MYUSA48NA23BCH18-I14 of 18 models qualify · AHRI 21789646572.2(50 is the typical model of its size class)OTV18HN048Awith ducted air handler OTA18C006AAlso listed as OTV18HN060A7 of 11 models qualify · AHRI 217747072
Ducted, 5 tons and upNo models in this size class64.1(50 is the typical model of its size class)MRB560HWD1 of 2 models qualify · AHRI 217194656
Non-ducted, up to 1.5 tons68.6(50 is the typical model of its size class)MYTW18NA23BCH24-O19 of 26 models qualify · AHRI 21859934679.2(50 is the typical model of its size class) (higher)ARHHBT18ASwith ductless indoor unit AWHHBT18S22 of 32 models qualify · AHRI 218620807
Non-ducted, 2 tons37.7(50 is the typical model of its size class)MYTW24NA23BCH24ES-Owith ductless indoor unit MYTD24NA23BCH24ES-IAlso listed as MYTD24NA23BCH24-O2 of 5 models qualify · AHRI 21859933777.9(50 is the typical model of its size class) (higher)MRS5VHT24ASwith ductless indoor unit MUV5HT24S6 of 9 models qualify · AHRI 216706039
Non-ducted, 2.5–3 tons57.5(50 is the typical model of its size class)MYTW27NA23BCH24-O6 of 8 models qualify · AHRI 21859934777.2(50 is the typical model of its size class) (higher)GMRSHT36AS46 of 8 models qualify · AHRI 217284813
Non-ducted, 3.5–4.5 tons31.2(50 is the typical model of its size class)MYTW42NA23BCH24-O2 of 3 models qualify · AHRI 21859934966.5(50 is the typical model of its size class) (higher)GMRSHT42AS53 of 5 models qualify · AHRI 217284814

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 typeBestcoldAll-around score, best modelTGMAll-around score, best model
Ducted, up to 1.5 tonsNone on this board (0 of 1 models have all five ratings)78.4(50 is the typical model of its size class)MRS5VHT18ASwith ducted air handler MFC5VHT18S3 of 5 models have all five ratings · AHRI 217274613
Ducted, 2 tons79.6(50 is the typical model of its size class)MYGA36NA23BCH19-Owith ducted air handler MYGA24NA23BCH20-I8 of 9 models have all five ratings · AHRI 21760604979.6(50 is the typical model of its size class)CTV520HN036Awith ducted air handler CTA520C024A6 of 8 models have all five ratings · AHRI 217138121
Ducted, 2.5–3 tons65.1(50 is the typical model of its size class)MYUA36NA23BCH19-Owith ducted air handler MYUA36NA23BCH19-I7 of 9 models have all five ratings · AHRI 21789646072.8(50 is the typical model of its size class) (higher)MTVC2OCN036Awith ducted air handler MTA20C036A6 of 10 models have all five ratings · AHRI 218044247
Ducted, 3.5–4.5 tons72.6(50 is the typical model of its size class)MYOA48NA22BCH18-Owith ducted air handler MYOA48NA22BCH18-I15 of 18 models have all five ratings · AHRI 21765058072.6(50 is the typical model of its size class)OTV18HN048Awith ducted air handler OTA18C006AAlso listed as OTV18HN060A8 of 11 models have all five ratings · AHRI 217747072
Ducted, 5 tons and upNo models in this size class70.5(50 is the typical model of its size class)MRB560HWD2 of 2 models have all five ratings · AHRI 217194656
Non-ducted, up to 1.5 tons72.2(50 is the typical model of its size class)MYTW18NA23BCH24-O26 of 26 models have all five ratings · AHRI 21859934682.9(50 is the typical model of its size class) (higher)ARHHBT18ASwith ductless indoor unit AWHHBT18S32 of 32 models have all five ratings · AHRI 218620807
Non-ducted, 2 tons48.8(50 is the typical model of its size class)MYTW24NA23BCH24ES-Owith ductless indoor unit MYTD24NA23BCH24ES-IAlso listed as MYTD24NA23BCH24-O5 of 5 models have all five ratings · AHRI 21859933786.5(50 is the typical model of its size class) (higher)ARHHBT24ASwith ductless indoor unit AWHHBT24S9 of 9 models have all five ratings · AHRI 218620808
Non-ducted, 2.5–3 tons65.1(50 is the typical model of its size class) (higher)MYTW27NA23BCH24-O8 of 8 models have all five ratings · AHRI 21859934764.5(50 is the typical model of its size class)GMRSHT36AS47 of 8 models have all five ratings · AHRI 217284813
Non-ducted, 3.5–4.5 tons42.4(50 is the typical model of its size class)MYTW42NA23BCH24-O3 of 3 models have all five ratings · AHRI 21859934967.7(50 is the typical model of its size class) (higher)GMRSHT42AS54 of 5 models have all five ratings · AHRI 217284814

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
RatingBestcoldTGM
COP at 5°Fbeats 86% · 2.30MYOA48NA22BCH18-ODucted, 3.5–4.5 tonsbeats 98% · 2.50ARHCPT18ASNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 97% · 103%MYIRU24NA22BCH18*Ducted, 2 tonsbeats 88% · 70%MRB560HWDDucted, 5 tons and up
HSPF2beats 84% · 9.8MYUA48NA23BCH19-ODucted, 3.5–4.5 tonsbeats 94% · 9.7MR5SVHT60ASDucted, 5 tons and up
SEER2beats 91% · 24.0MYTW27NA23BCH24-ONon-ducted, 2.5–3 tonsbeats 97% · 22.0TMRHT18AS2Ducted, up to 1.5 tons
EER2beats 98% · 14.0MYUA24NA23BCH20-ODucted, 2 tonsbeats 96% · 14.0ARHHBT24ASNon-ducted, 2 tons
Heating capacity at 5°Fbeats 97% · 25,800 Btu/hMYIRU24NA22BCH18*Ducted, 2 tonsbeats 86% · 15,000 Btu/hARHHBT18ASNon-ducted, up to 1.5 tons

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