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COMFORTSTAR heat pump efficiency: 117 outdoor models compared

COMFORTSTAR has 117 heat pump outdoor models certified with this refrigerant group, in 302 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 COMFORTSTAR makes. COMFORTSTAR 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
117
AHRI certifications
302
Efficiency index
48%
Typical model vs same-size, same-type peers (108 models)
Meet CEE 2025
36.8%
43 models

How COMFORTSTAR 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.
COMFORTSTAR against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of COMFORTSTAR’s own modelsCOMFORTSTAR is strongest on HSPF2 (its typical model beats 49% of comparable models) and weakest on EER2 (44%).
  • COMFORTSTAR
  • Middle half of its models
  • Other ranked manufacturers
COMFORTS…

Source: AHRI Directory, NEEP · as of

Average peer percentile of COMFORTSTAR’s models
RatingBeats comparable modelsRankRaw median
Efficiency index108 models scored48%Not ranked—
COP at 5°F108 models scored46%Not ranked1.88
Capacity retention at 5°F108 models scored44%Not ranked63%
HSPF2142 models scored49%Not ranked8.7
SEER2142 models scored44%Not ranked17.0
EER2142 models scored44%Not ranked11.0
Heating capacity at 5°F108 models scored46%Not ranked17,600 Btu/h

Standards met

Share of COMFORTSTAR’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)36.8%43
CEE 2026 Tier 1 (Split ASHP)35.9%42
CEE Advanced Tier (Split ASHP)0.9%1
Xcel Energy Colorado cold-climate ASHP (2025)23.9%28
DOE Cold Climate Heat Pump Challenge0.9%1
ENERGY STAR Cold Climate22.2%26

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
COMFORTSTAR’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
  • COMFORTSTAR (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsDucted, 5 tons and up1.90239 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

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, up to 1.5 tons1262%52%61%59%
Ducted, 2 tons1048%41%49%39%
Ducted, 2.5–3 tons2444%31%51%41%
Ducted, 3.5–4.5 tons2247%36%54%42%
Ducted, 5 tons and up542%28%54%43%
Non-ducted, up to 1.5 tons3347%49%48%47%
Non-ducted, 2 tons842%51%45%37%
Non-ducted, 2.5–3 tons2046%62%38%40%
Non-ducted, 3.5–4.5 tons854%43%51%43%

Every COMFORTSTAR model in the market

COMFORTSTAR’s 142 models with a known size and duct type, over the shape of the whole catalog.
COMFORTSTAR models by size and ratingColoured: COMFORTSTAR · grey shapes: all 11,475 models · lines: catalog medians by size
  • COMFORTSTAR models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 142 comfortstar models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 11,475 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 tons1751.701.851.902.102.26
Ducted, 1 ton3401.851.902.002.402.65
Ducted, 1.5 tons7891.751.852.002.202.55
Ducted, 2 tons7821.731.802.002.102.33
Ducted, 2.5 tons7351.711.801.902.092.48
Ducted, 3 tons6521.681.701.902.062.36
Ducted, 3.5 tons6411.611.801.952.202.50
Ducted, 4 tons3671.701.801.912.022.52
Ducted, 4.5 tons5441.701.801.912.082.34
Ducted, 5 tons251.801.801.901.902.15
Non-ducted, 0.5 tons7171.751.811.972.102.19
Non-ducted, 1 ton1,0641.751.801.902.072.25
Non-ducted, 1.5 tons8861.801.801.872.072.21
Non-ducted, 2 tons5641.801.801.832.042.21
Non-ducted, 2.5 tons2751.801.811.841.862.03
Non-ducted, 3 tons5021.801.801.902.002.09
Non-ducted, 3.5 tons701.821.831.902.002.28
Non-ducted, 4 tons2631.801.801.982.002.10
Non-ducted, 4.5 tons1031.771.771.801.972.02
Non-ducted, 5 tons291.982.002.102.302.47

Source: AHRI Directory · as of

Top COMFORTSTAR 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 COMFORTSTAR 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
1CXH048CD(O)-DUCOMFORTSTAR · C serieswith ducted air handler CPA-48DUBAlso listed as CHF48CD(O)4 tons48,000 Btu/h · Ducted88%2.0210.346,00014.3None6205150441Ducted, 3.5–4.5 tons86.4
2CHF24CD(O)COMFORTSTAR · CH serieswith ductless indoor unit TIP-242 tons24,000 Btu/h · Non-ducted103%2.0011.525,80020.5CEE 25CEE 26CEE AdvXcelDOEES CC5207658952Non-ducted, 2 tons86.1
3CZP09CD(O)COMFORTSTAR · C serieswith ductless indoor unit CHF09CD(I)1 ton9,000 Btu/h · Non-ducted86%2.1912.38,58125.5CEE 25CEE 26XcelES CC5207658922Non-ducted, up to 1.5 tons86.0
4CZP24CD(O)COMFORTSTAR · C serieswith ducted air handler CPA-24B2 tons23,000 Btu/h · Ducted80%2.3011.220,00019.0CEE 25CEE 26XcelES CC5207658933Ducted, 2 tons80.3
5CHF36CD(O)COMFORTSTAR · C serieswith ducted air handler CPA-36C3 tons36,000 Btu/h · Ducted86%1.9811.036,00016.5ES CC4207658941Ducted, 2.5–3 tons79.9

All-around best

Top 5 COMFORTSTAR 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
1CZP09CD(O)COMFORTSTAR · C serieswith ductless indoor unit CHF09CD(I)1 ton9,000 Btu/h · Non-ducted86%2.1912.325.515.0CEE 25CEE 26XcelES CC5207658922Non-ducted, up to 1.5 tons88.486.090.886.0
2CHF09CD(O)COMFORTSTAR · C serieswith ductless indoor unit CHF09CD(I)1 ton9,000 Btu/h · Non-ducted88%1.9711.528.116.2CEE 25CEE 26XcelES CC5207658926Non-ducted, up to 1.5 tons87.076.297.976.2
3CHF09CD(O)COMFORTSTAR · C serieswith ducted air handler CPA-09C1 ton9,000 Btu/h · Ducted108%1.9012.020.213.2CEE 25CEE 26XcelES CC5207658937Ducted, up to 1.5 tons85.274.995.574.9
4CHF24CD(O)COMFORTSTAR · C serieswith ductless indoor unit CHF24CD(I)2 tons24,000 Btu/h · Non-ducted86%2.2111.421.513.0CEE 25CEE 26CEE AdvXcelDOEES CC5207658929Non-ducted, 2 tons84.384.584.186.1
5CZP24CD(O)COMFORTSTAR · C serieswith ducted air handler CPA-24B2 tons23,000 Btu/h · Ducted80%2.3011.219.012.5CEE 25CEE 26XcelES CC5207658933Ducted, 2 tons83.880.387.480.3

Best model on each rating

COMFORTSTAR’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FCZP12CD(O)2.39Non-ducted, up to 1.5 tons97%207658923
Capacity retention at 5°FCHF36CD(O)103%Non-ducted, 2.5–3 tons95%207658953
HSPF2CXH048CD(O)-DUAlso listed as CHF48CD(O)10.3Ducted, 3.5–4.5 tons99%205150441
SEER2CMZ-27-3Z24.6Non-ducted, 2.5–3 tons99%207658967
EER2CHF09CD(O)16.2Non-ducted, up to 1.5 tons98%207658926
Heating capacity at 5°FCHF36CD(O)41,000 Btu/hNon-ducted, 2.5–3 tons98%207658953

All 117 COMFORTSTAR models in Explore

COMFORTSTAR 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.
COMFORTSTAR: 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
Ducted, up to 1.5 tons74.9(50 is the typical model of its size class)CHF09CD(O)with ducted air handler CPA-09C8 of 12 models qualify · AHRI 20765893785.2(50 is the typical model of its size class)CHF09CD(O)with ducted air handler CPA-09C10 of 12 models have all five ratings · AHRI 207658937
Ducted, 2 tons80.3(50 is the typical model of its size class)CZP24CD(O)with ducted air handler CPA-24B4 of 10 models qualify · AHRI 20765893383.8(50 is the typical model of its size class)CZP24CD(O)with ducted air handler CPA-24B6 of 10 models have all five ratings · AHRI 207658933
Ducted, 2.5–3 tons79.9(50 is the typical model of its size class)CHF36CD(O)with ducted air handler CPA-36C6 of 24 models qualify · AHRI 20765894175.4(50 is the typical model of its size class)CMZ-27-3Z16 of 24 models have all five ratings · AHRI 207658968
Ducted, 3.5–4.5 tons86.4(50 is the typical model of its size class)CXH048CD(O)-DUwith ducted air handler CPA-48DUBAlso listed as CHF48CD(O)6 of 22 models qualify · AHRI 20515044182.0(50 is the typical model of its size class)CVH-48-5SH12 of 22 models have all five ratings · AHRI 207658985
Ducted, 5 tons and up70.2(50 is the typical model of its size class)CCRT60-1-INV1 of 5 models qualify · AHRI 21260183275.1(50 is the typical model of its size class)CCRT60-1-INV5 of 5 models have all five ratings · AHRI 212601832
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class)CZP09CD(O)with ductless indoor unit CHF09CD(I)11 of 33 models qualify · AHRI 20765892288.4(50 is the typical model of its size class)CZP09CD(O)with ductless indoor unit CHF09CD(I)30 of 33 models have all five ratings · AHRI 207658922
Non-ducted, 2 tons86.1(50 is the typical model of its size class)CHF24CD(O)with ductless indoor unit TIP-242 of 8 models qualify · AHRI 20765895284.3(50 is the typical model of its size class)CHF24CD(O)with ductless indoor unit CHF24CD(I)7 of 8 models have all five ratings · AHRI 207658929
Non-ducted, 2.5–3 tons79.3(50 is the typical model of its size class)CVH-36-4SH3 of 20 models qualify · AHRI 20765898282.8(50 is the typical model of its size class)CVH-36-4SH17 of 20 models have all five ratings · AHRI 207658982
Non-ducted, 3.5–4.5 tons76.2(50 is the typical model of its size class)CVH-48-5SH4 of 8 models qualify · AHRI 20765898477.9(50 is the typical model of its size class)CVH-48-5SH5 of 8 models have all five ratings · AHRI 207658984

All-around board, every manufacturer

Newest COMFORTSTAR certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified COMFORTSTAR outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
CLA36CD-T(O)COMFORTSTARwith ductless indoor unit CLA36CD-T(I)3 tons36,000 Btu/h · Non-ducted1.8058%8.519.0None1214836549
CZP18CD(O)COMFORTSTAR · T1W Serieswith ductless indoor unit T1W18P1.5 tons18,000 Btu/h · Ducted and non-ducted2.3069%10.721.8CEE 25CEE 265214594915
CZP12CD(O)COMFORTSTAR · T1W Serieswith ductless indoor unit T1W12P1 ton12,000 Btu/h · Ducted and non-ducted2.2262%9.822.0CEE 25CEE 26XcelES CC5214594914
CZP09CD(O)COMFORTSTAR · T1W Serieswith ductless indoor unit T1W9P1 ton9,000 Btu/h · Ducted and non-ducted2.3777%11.522.5CEE 25CEE 26XcelES CC5214594913
CHF18CD(O)COMFORTSTAR · T1W Serieswith ductless indoor unit T1W18P1.5 tons16,700 Btu/h · Ducted and non-ducted1.9384%11.219.8CEE 25CEE 26XcelES CC6214594912

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