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Convectair vs TKS heat pumps

Measured against models of the same size and duct type, Convectair scores higher on 5 of the 6 ratings. Convectair has 16 outdoor models, TKS has 8 outdoor models. Convectair and TKS 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.
Convectair and TKS 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, Convectair scores higher on 5 of the 6 ratings.
  • Convectair
  • TKS
  • Other ranked manufacturers
Convecta…TKS

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingConvectairTKS
Efficiency index62% (higher)median —50% (higher)median —
COP at 5°F43% (higher)median 1.8734% (higher)median 1.82
Capacity retention at 5°F70% (higher)median 89%35% (higher)median 66%
HSPF269% (higher)median 10.257% (higher)median 9.2
SEER263%median 21.766%median 21.1
EER262% (higher)median 12.548% (higher)median 10.7
Heating capacity at 5°F68% (higher)median 15,750 Btu/h38% (higher)median 17,400 Btu/h
Outdoor models168
AHRI certifications2416

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardConvectairTKS
CEE 2025 Tier 1 (Split ASHP)75%12 models62.5%5 models
CEE 2026 Tier 1 (Split ASHP)75%12 models50%4 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)75%12 models25%2 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 · 7 groups where both have models
  • Convectair
  • TKS
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsNon-ducted, 3.5–4.5 tons1.97438 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 typeConvectairTKS
Ducted, up to 1.5 tons1 · index 59%1 · index 59%
Ducted, 2.5–3 tons2 · index 73%2 · index 64%
Ducted, 3.5–4.5 tons1 · index 82%1 · index 64%
Non-ducted, up to 1.5 tons10 · index 55%3 · index 37%
Non-ducted, 2 tons3 · index 52%1 · index 27%
Non-ducted, 2.5–3 tons2 · index 78%3 · index 52%
Non-ducted, 3.5–4.5 tons1 · index 78%1 · index 48%

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 typeConvectairCold-climate score, best modelTKSCold-climate score, best model
Ducted, up to 1.5 tons50.4(50 is the typical model of its size class)8222-C18-O1 of 1 models qualify · AHRI 20759084752.0(50 is the typical model of its size class) (higher)T2C-18MODU1 of 1 models qualify · AHRI 214594924
Ducted, 2.5–3 tons66.7(50 is the typical model of its size class) (higher)8322-C27-O2 of 2 models qualify · AHRI 20759085057.4(50 is the typical model of its size class)T3C-27MODU1 of 2 models qualify · AHRI 214594927
Ducted, 3.5–4.5 tons74.9(50 is the typical model of its size class)8522-C48-O1 of 1 models qualify · AHRI 207590853None on this board (0 of 1 models qualify)
Non-ducted, up to 1.5 tons76.2(50 is the typical model of its size class)8028-C09-Owith ductless indoor unit 8028-C09-I8 of 10 models qualify · AHRI 207709204None on this board (0 of 3 models qualify)
Non-ducted, 2 tons84.5(50 is the typical model of its size class)8028-C24-Owith ductless indoor unit 8028-C24-I2 of 3 models qualify · AHRI 207709207None on this board (0 of 1 models qualify)
Non-ducted, 2.5–3 tons79.3(50 is the typical model of its size class) (higher)8422-C36-O2 of 2 models qualify · AHRI 20765762249.3(50 is the typical model of its size class)T3C-27MODU1 of 3 models qualify · AHRI 214594926
Non-ducted, 3.5–4.5 tons76.2(50 is the typical model of its size class)8522-C48-O1 of 1 models qualify · AHRI 207590852None on this board (0 of 1 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 typeConvectairAll-around score, best modelTKSAll-around score, best model
Ducted, up to 1.5 tons58.6(50 is the typical model of its size class)8222-C18-O1 of 1 models have all five ratings · AHRI 20759084759.4(50 is the typical model of its size class) (higher)T2C-18MODU1 of 1 models have all five ratings · AHRI 214594924
Ducted, 2.5–3 tons74.6(50 is the typical model of its size class) (higher)8322-C27-O2 of 2 models have all five ratings · AHRI 20759085071.5(50 is the typical model of its size class)T3C-27MODU2 of 2 models have all five ratings · AHRI 214594927
Ducted, 3.5–4.5 tons82.0(50 is the typical model of its size class) (higher)8522-C48-O1 of 1 models have all five ratings · AHRI 20759085363.5(50 is the typical model of its size class)T5C-48MODU1 of 1 models have all five ratings · AHRI 214594933
Non-ducted, up to 1.5 tons87.0(50 is the typical model of its size class) (higher)8028-C09-Owith ductless indoor unit 8028-C09-I10 of 10 models have all five ratings · AHRI 20770920452.0(50 is the typical model of its size class)T2C-18MODU3 of 3 models have all five ratings · AHRI 214594923
Non-ducted, 2 tons84.3(50 is the typical model of its size class) (higher)8028-C24-Owith ductless indoor unit 8028-C24-I3 of 3 models have all five ratings · AHRI 20770920727.2(50 is the typical model of its size class)TWS-24ODUwith ductless indoor unit TWS-24IDU1 of 1 models have all five ratings · AHRI 214594921
Non-ducted, 2.5–3 tons82.8(50 is the typical model of its size class) (higher)8422-C36-O2 of 2 models have all five ratings · AHRI 20765762266.7(50 is the typical model of its size class)T3C-27MODU3 of 3 models have all five ratings · AHRI 214594926
Non-ducted, 3.5–4.5 tons77.9(50 is the typical model of its size class) (higher)8522-C48-O1 of 1 models have all five ratings · AHRI 20759085248.3(50 is the typical model of its size class)T5C-48MODU1 of 1 models have all five ratings · AHRI 214594932

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
RatingConvectairTKS
COP at 5°Fbeats 91% · 2.218028-C24-ONon-ducted, 2 tonsbeats 87% · 2.01TWS-36ODUNon-ducted, 2.5–3 tons
Capacity retention at 5°Fbeats 85% · 100%8222-C18-ODucted, up to 1.5 tonsbeats 55% · 71%T3C-27MODUDucted, 2.5–3 tons
HSPF2beats 95% · 10.68322-C27-ONon-ducted, 2.5–3 tonsbeats 95% · 9.7T5C-48MODUDucted, 3.5–4.5 tons
SEER2beats 99% · 20.98522-C48-ODucted, 3.5–4.5 tonsbeats 98% · 21.0T3C-27MODUDucted, 2.5–3 tons
EER2beats 98% · 16.28028-C09-ONon-ducted, up to 1.5 tonsbeats 75% · 12.2T3C-27MODUNon-ducted, 2.5–3 tons
Heating capacity at 5°Fbeats 96% · 20,000 Btu/h8222-C18-ONon-ducted, up to 1.5 tonsbeats 75% · 12,900 Btu/hT2C-18MODUNon-ducted, up to 1.5 tons

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