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ZOKOP heat pump efficiency: 37 outdoor models compared

ZOKOP has 37 heat pump outdoor models certified with this refrigerant group, in 37 AHRI-certified combinations. Each model is compared with models of the same size and duct type, so the scores below do not depend on which sizes ZOKOP makes. ZOKOP has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

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

ManufacturerData as of updated · sources

Outdoor models
37
AHRI certifications
37
Efficiency index
34%
Typical model vs same-size, same-type peers (37 models)
Meet CEE 2025
67.6%
25 models

How ZOKOP compares with comparable models

For each rating: the share of same-size, same-type models that a typical model of this manufacturer beats (50% is typical), its rank, and the raw median for context. Raw medians are not comparable across manufacturers that make different sizes.
ZOKOP against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of ZOKOP’s own modelsZOKOP is strongest on HSPF2 (its typical model beats 46% of comparable models) and weakest on EER2 (26%).
  • ZOKOP
  • Middle half of its models
  • Other ranked manufacturers
ZOKOP

Source: AHRI Directory, NEEP · as of

Average peer percentile of ZOKOP’s models
RatingBeats comparable modelsRankRaw median
Efficiency index37 models scored34%Not ranked—
COP at 5°F37 models scored34%Not ranked1.80
Capacity retention at 5°F37 models scored33%Not ranked72%
HSPF237 models scored46%Not ranked9.5
SEER237 models scored36%Not ranked20.0
EER237 models scored26%Not ranked10.5
Heating capacity at 5°F37 models scored40%Not ranked9,500 Btu/h

Standards met

Share of ZOKOP’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)67.6%25
CEE 2026 Tier 1 (Split ASHP)67.6%25
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)56.8%21
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate0%0

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
ZOKOP’s models inside each size and duct typeShape: every model of the group · blue: the middle half of this manufacturer’s models there, median dot, 10th–90th percentile line
  • ZOKOP (median, middle 50%, 10th–90th)
  • All models of the group
Non-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

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Non-ducted, up to 1.5 tons2731%27%44%29%
Non-ducted, 2 tons335%53%44%45%
Non-ducted, 2.5–3 tons652%53%58%63%
Non-ducted, 3.5–4.5 tons127%37%14%30%

Every ZOKOP model in the market

ZOKOP’s 37 models with a known size and duct type, over the shape of the whole catalog.
ZOKOP models by size and ratingColoured: ZOKOP · grey shapes: all 14,508 models · lines: catalog medians by size
  • ZOKOP models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 37 zokop models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 models, half a ton at a time.
Show the data as a table
COP at 5°F by size and duct type (every model, by rated cooling capacity)
Duct type, sizeModels10th pct.25thMedian75th90th
Ducted, 0.5 tons8261.641.711.751.852.24
Ducted, 1 ton4071.801.902.052.412.45
Ducted, 1.5 tons9921.751.862.002.172.40
Ducted, 2 tons9991.751.862.002.182.30
Ducted, 2.5 tons1,0401.701.802.002.102.36
Ducted, 3 tons6961.801.902.002.102.42
Ducted, 3.5 tons8641.701.802.002.102.46
Ducted, 4 tons7271.801.862.002.122.40
Ducted, 4.5 tons6901.701.801.902.102.20
Ducted, 5 tons861.892.002.102.102.10
Non-ducted, 0.5 tons1,1861.751.801.902.002.22
Non-ducted, 1 ton1,3431.801.801.992.102.21
Non-ducted, 1.5 tons1,2611.801.802.002.102.31
Non-ducted, 2 tons7611.801.982.002.102.30
Non-ducted, 2.5 tons4031.801.852.002.002.10
Non-ducted, 3 tons4731.901.982.002.032.20
Non-ducted, 3.5 tons2802.002.002.002.052.10
Non-ducted, 4 tons2041.962.002.052.102.11
Non-ducted, 4.5 tons781.901.911.952.012.01
Non-ducted, 5 tons841.992.002.052.202.20

Source: AHRI Directory · as of

Top ZOKOP models

Its top five cold-climate picks and its top five all-around models across sizes (both scores compare each model with models of its own size and duct type, so sizes compare), then, on each single rating, the model that beats the largest share of comparable models.

Cold-climate picks

Top 5 ZOKOP cold-climate picks across sizes. 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.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2Btu/h @5°FSEER2MeetsCombosAHRI ref.Compared withScore
1TMSC-18HA2/I2XI20B-OZOKOPAlso listed as TMSC-18HA2/I2XI20B-O1.5 tons18,000 Btu/h · Non-ducted80%2.0010.516,00024.0CEE 25CEE 26Xcel1216020699Non-ducted, up to 1.5 tons68.6
2ZP18M2/19-OZOKOP1.5 tons18,000 Btu/h · Non-ducted78%2.0010.014,00025.0CEE 25CEE 26Xcel1218035862Non-ducted, up to 1.5 tons62.1
3TMSC-27HA2/I2XI19B-OZOKOPAlso listed as TMSC-27HA2/I2XI19B-O2.5 tons27,000 Btu/h · Non-ducted71%2.0010.519,80024.0CEE 25CEE 26Xcel1216020700Non-ducted, 2.5–3 tons57.5
4TMSC-36HA2/I2XI19B-OZOKOPAlso listed as TMSC-36HA2/I2XI19B-O3 tons35,000 Btu/h · Non-ducted72%2.0010.026,00022.5CEE 25CEE 26Xcel1216020701Non-ducted, 2.5–3 tons52.5
5TMSC-09HA2/I2XI19B-O*ZOKOPwith ductless indoor unit TMSC-09HA2/I2XI19B-I1 ton9,000 Btu/h · Non-ducted74%1.9010.07,40020.0CEE 25CEE 26Xcel1217153999Non-ducted, up to 1.5 tons50.4

All-around best

Top 5 ZOKOP models on the all-around score across sizes. 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.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2SEER2EER2MeetsCombosAHRI ref.Compared withScoreHeating halfCooling halfCold-climate score
1TMSC-18HA2/I2XI20B-OZOKOPAlso listed as TMSC-18HA2/I2XI20B-O1.5 tons18,000 Btu/h · Non-ducted80%2.0010.524.013.0CEE 25CEE 26Xcel1216020699Non-ducted, up to 1.5 tons72.268.675.868.6
2TMSC-27HA2/I2XI19B-OZOKOPAlso listed as TMSC-27HA2/I2XI19B-O2.5 tons27,000 Btu/h · Non-ducted71%2.0010.524.012.0CEE 25CEE 26Xcel1216020700Non-ducted, 2.5–3 tons65.157.572.657.5
3ZP18M2/19-OZOKOP1.5 tons18,000 Btu/h · Non-ducted78%2.0010.025.011.7CEE 25CEE 26Xcel1218035862Non-ducted, up to 1.5 tons62.262.162.462.1
4TMSC-36HA2/I2XI19B-OZOKOPAlso listed as TMSC-36HA2/I2XI19B-O3 tons35,000 Btu/h · Non-ducted72%2.0010.022.511.1CEE 25CEE 26Xcel1216020701Non-ducted, 2.5–3 tons51.152.549.752.5
5TMSC-09HA2/I2XI19B-O*ZOKOPwith ductless indoor unit TMSC-09HA2/I2XI19B-I1 ton9,000 Btu/h · Non-ducted74%1.9010.020.012.0CEE 25CEE 26Xcel1217153999Non-ducted, up to 1.5 tons43.950.437.350.4

Best model on each rating

ZOKOP’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FTSC-24HA2/I2XI18B-OAlso listed as TSC-24HA2/I2XI18B-O2.10Non-ducted, 2 tons71%216020695
Capacity retention at 5°FTMSC-18HA2/I2XI20B-OAlso listed as TMSC-18HA2/I2XI20B-O80%Non-ducted, up to 1.5 tons61%216020699
HSPF2TMSC-27HA2/I2XI19B-OAlso listed as TMSC-27HA2/I2XI19B-O10.5Non-ducted, 2.5–3 tons80%216020700
SEER2TMSC-27HA2/I2XI19B-OAlso listed as TMSC-27HA2/I2XI19B-O24.0Non-ducted, 2.5–3 tons91%216020700
EER2TMSC-18HA2/I2XI20B-OAlso listed as TMSC-18HA2/I2XI20B-O13.0Non-ducted, up to 1.5 tons70%216020699
Heating capacity at 5°FTMSC-18HA2/I2XI20B-OAlso listed as TMSC-18HA2/I2XI20B-O16,000 Btu/hNon-ducted, up to 1.5 tons88%216020699

All 37 ZOKOP models in Explore

ZOKOP size class by size class: cold-climate and all-around

Its best model on each board in every size and duct type it makes. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there). Cold-climate picks must keep at least 70% of their heat at 5°F; the all-around score needs all five ratings and has no such bar.
ZOKOP: best cold-climate pick and best all-around model per size and duct type, with how many of its models are on each board (top 5 and 5 per class are in the snapshot)
Size and duct typeCold-climate pickCold-climate score, best modelAll-around bestAll-around score, best model
Non-ducted, up to 1.5 tons68.6(50 is the typical model of its size class)TMSC-18HA2/I2XI20B-OAlso listed as TMSC-18HA2/I2XI20B-O14 of 27 models qualify · AHRI 21602069972.2(50 is the typical model of its size class)TMSC-18HA2/I2XI20B-OAlso listed as TMSC-18HA2/I2XI20B-O27 of 27 models have all five ratings · AHRI 216020699
Non-ducted, 2 tonsNone on this board (0 of 3 models qualify)39.1(50 is the typical model of its size class)TSC-24HA2/I2XI18B-Owith ductless indoor unit TSC-24HA2/I2XI18B-IAlso listed as TSC-24HA2/I2XI18B-O3 of 3 models have all five ratings · AHRI 216020695
Non-ducted, 2.5–3 tons57.5(50 is the typical model of its size class)TMSC-27HA2/I2XI19B-OAlso listed as TMSC-27HA2/I2XI19B-O6 of 6 models qualify · AHRI 21602070065.1(50 is the typical model of its size class)TMSC-27HA2/I2XI19B-OAlso listed as TMSC-27HA2/I2XI19B-O6 of 6 models have all five ratings · AHRI 216020700
Non-ducted, 3.5–4.5 tons24.7(50 is the typical model of its size class)ZP42M2/19-O1 of 1 models qualify · AHRI 21803587127.2(50 is the typical model of its size class)ZP42M2/19-O1 of 1 models have all five ratings · AHRI 218035871

All-around board, every manufacturer

Newest ZOKOP certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified ZOKOP outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
ZP18T2CHSA17-OZOKOPwith ductless indoor unit ZP18T2CHSA17-I1.5 tons17,000 Btu/h · Non-ducted1.8058%8.517.0None1218043547
ZP12T2CHSA17-OZOKOPwith ductless indoor unit ZP12T2CHSA17-I1 ton11,500 Btu/h · Non-ducted1.7561%8.517.0None1218043546
ZP12T1CHSA17-OZOKOPwith ductless indoor unit ZP12T1CHSA17-I1 ton11,500 Btu/h · Non-ducted1.9070%9.517.0None1218043545
ZP24T2/18-OZOKOPwith ductless indoor unit ZP24T2/18-I2 tons24,000 Btu/h · Non-ducted1.8067%9.520.0CEE 25CEE 261218043542
ZP18T2/19-OZOKOPwith ductless indoor unit ZP18T2/19-I1.5 tons18,000 Btu/h · Non-ducted1.8067%10.020.0None1218043541

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ZOKOP includes these brand names as listed in AHRI: ZOKOP. Standards are checked against published thresholds; program rules beyond ratings are not checked.