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Cowsar heat pump efficiency: 12 outdoor models compared

Cowsar has 12 heat pump outdoor models certified with this refrigerant group, in 12 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 Cowsar makes. Cowsar 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
12
AHRI certifications
12
Efficiency index
34%
Typical model vs same-size, same-type peers (12 models)
Meet CEE 2025
75%
9 models

How Cowsar 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.
Cowsar against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Cowsar’s own modelsCowsar is strongest on COP at 5°F (its typical model beats 61% of comparable models) and weakest on EER2 (23%).
  • Cowsar
  • Middle half of its models
  • Other ranked manufacturers
Cowsar

Source: AHRI Directory, NEEP · as of

Average peer percentile of Cowsar’s models
RatingBeats comparable modelsRankRaw median
Efficiency index12 models scored34%Not ranked—
COP at 5°F12 models scored61%Not ranked2.03
Capacity retention at 5°F12 models scored28%Not ranked68%
HSPF212 models scored25%Not ranked9.0
SEER212 models scored36%Not ranked19.8
EER212 models scored23%Not ranked10.6
Heating capacity at 5°F12 models scored35%Not ranked10,400 Btu/h

Standards met

Share of Cowsar’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)75%9
CEE 2026 Tier 1 (Split ASHP)75%9
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)50%6
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.
Cowsar’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
  • Cowsar (median, middle 50%, 10th–90th)
  • All models of the group
Non-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 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 tons937%65%29%39%
Non-ducted, 2 tons324%51%12%26%

Every Cowsar model in the market

Cowsar’s 12 models with a known size and duct type, over the shape of the whole catalog.
Cowsar models by size and ratingColoured: Cowsar · grey shapes: all 14,508 models · lines: catalog medians by size
  • Cowsar models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 12 cowsar 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 Cowsar 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 2 Cowsar 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
1SE7203P-9KCowsarwith ductless indoor unit SE7203S-9KAlso listed as SE7203P-9K-ASZ, SE7203PW-9K-ZAZ1 ton9,100 Btu/h · Non-ducted80%1.959.07,60020.5CEE 25CEE 26Xcel1218787879Non-ducted, up to 1.5 tons47.3
2SE7203S-18KCowsarwith ductless indoor unit SE7203P-18KAlso listed as SE7203SW-18K-ZAZ, SE7203S-18K-ASZ1.5 tons18,000 Btu/h · Non-ducted70%2.099.012,60019.0CEE 25CEE 26Xcel1218787882Non-ducted, up to 1.5 tons42.2

All-around best

Top 4 Cowsar 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
1SE7203P-9KCowsarwith ductless indoor unit SE7203S-9KAlso listed as SE7203P-9K-ASZ, SE7203PW-9K-ZAZ1 ton9,100 Btu/h · Non-ducted80%1.959.020.510.7CEE 25CEE 26Xcel1218787879Non-ducted, up to 1.5 tons39.547.331.747.3
2A7201P-12K-ELCowsarwith ductless indoor unit A7201S-12K-ELAlso listed as A7201PW-12K-EL, A7201PW-12K-ZAZ1 ton12,000 Btu/h · Non-ducted67%2.059.022.010.0CEE 25CEE 261218787880Non-ducted, up to 1.5 tons37.838.637.0Not a pick
3SE7203S-18KCowsarwith ductless indoor unit SE7203P-18KAlso listed as SE7203SW-18K-ZAZ, SE7203S-18K-ASZ1.5 tons18,000 Btu/h · Non-ducted70%2.099.019.011.0CEE 25CEE 26Xcel1218787882Non-ducted, up to 1.5 tons33.442.224.642.2
4SE7203P-24KCowsarwith ductless indoor unit SE7203S-24KAlso listed as SE7203PW-24K-ZAZ, SE7203P-24K-ASZ2 tons23,000 Btu/h · Non-ducted58%2.008.519.010.5None1218787883Non-ducted, 2 tons23.523.623.3Not a pick

Best model on each rating

Cowsar’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FSE7203S-18KAlso listed as SE7203SW-18K-ZAZ, SE7203S-18K-ASZ2.09Non-ducted, up to 1.5 tons74%218787882
Capacity retention at 5°FSE7203P-9KAlso listed as SE7203P-9K-ASZ, SE7203PW-9K-ZAZ80%Non-ducted, up to 1.5 tons61%218787879
HSPF2SE7203P-9KAlso listed as SE7203P-9K-ASZ, SE7203PW-9K-ZAZ9.0Non-ducted, up to 1.5 tons29%218787879
SEER2A7201P-12K-ELAlso listed as A7201PW-12K-EL, A7201PW-12K-ZAZ22.0Non-ducted, up to 1.5 tons56%218787880
EER2SE7203S-18KAlso listed as SE7203SW-18K-ZAZ, SE7203S-18K-ASZ11.0Non-ducted, up to 1.5 tons28%218787882
Heating capacity at 5°FSE7203S-18KAlso listed as SE7203SW-18K-ZAZ, SE7203S-18K-ASZ12,600 Btu/hNon-ducted, up to 1.5 tons73%218787882

All 12 Cowsar models in Explore

Cowsar 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.
Cowsar: 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 tons47.3(50 is the typical model of its size class)SE7203P-9Kwith ductless indoor unit SE7203S-9KAlso listed as SE7203P-9K-ASZ, SE7203PW-9K-ZAZ6 of 9 models qualify · AHRI 21878787939.5(50 is the typical model of its size class)SE7203P-9Kwith ductless indoor unit SE7203S-9KAlso listed as SE7203P-9K-ASZ, SE7203PW-9K-ZAZ9 of 9 models have all five ratings · AHRI 218787879
Non-ducted, 2 tonsNone on this board (0 of 3 models qualify)23.5(50 is the typical model of its size class)SE7203P-24Kwith ductless indoor unit SE7203S-24KAlso listed as SE7203PW-24K-ZAZ, SE7203P-24K-ASZ3 of 3 models have all five ratings · AHRI 218787883

All-around board, every manufacturer

Newest Cowsar certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Cowsar outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
SE7203P-24K-ASZCowsarwith ductless indoor unit SE7203S-24K-ASZ2 tons23,000 Btu/h · Non-ducted2.0058%8.519.0None1218787890
SE7203PW-24K-ZAZCowsarwith ductless indoor unit SE7203SW-24K-ZAZ2 tons23,000 Btu/h · Non-ducted2.0058%8.519.0None1218787889
SE7203S-18K-ASZCowsarwith ductless indoor unit SE7203P-18K-ASZ1.5 tons18,000 Btu/h · Non-ducted2.0970%9.019.0CEE 25CEE 26Xcel1218787888
SE7203SW-18K-ZAZCowsarwith ductless indoor unit SE7203PW-18K-ZAZ1.5 tons18,000 Btu/h · Non-ducted2.0970%9.019.0CEE 25CEE 26Xcel1218787887
A7201PW-12K-ZAZCowsarwith ductless indoor unit A7201SW-12K-ZAZ1 ton12,000 Btu/h · Non-ducted2.0567%9.022.0CEE 25CEE 261218787886

Shares hardware with

Manufacturers whose models are the same equipment under another badge. About OEM families

No shared hardware found for Cowsar in this group.

Compare Cowsar

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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