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ACD heat pump efficiency: 25 outdoor models compared

ACD has 25 heat pump outdoor models certified with this refrigerant group, in 51 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 ACD makes. ACD 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
25
AHRI certifications
51
Efficiency index
51%
Typical model vs same-size, same-type peers (30 models)
Meet CEE 2025
88%
22 models

How ACD 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.
ACD against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of ACD’s own modelsACD is strongest on capacity retention at 5°F (its typical model beats 69% of comparable models) and weakest on COP at 5°F (36%).
  • ACD
  • Middle half of its models
  • Other ranked manufacturers
ACD

Source: AHRI Directory, NEEP · as of

Average peer percentile of ACD’s models
RatingBeats comparable modelsRankRaw median
Efficiency index30 models scored51%Not ranked—
COP at 5°F30 models scored36%Not ranked1.82
Capacity retention at 5°F30 models scored69%Not ranked78%
HSPF230 models scored47%Not ranked9.0
SEER230 models scored53%Not ranked20.0
EER230 models scored51%Not ranked12.0
Heating capacity at 5°F30 models scored67%Not ranked21,600 Btu/h

Standards met

Share of ACD’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)88%22
CEE 2026 Tier 1 (Split ASHP)84%21
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)88%22
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate72%18

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
ACD’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
  • ACD (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 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 tons131%25%29%33%
Ducted, 2 tons253%21%56%56%
Ducted, 2.5–3 tons352%33%46%56%
Ducted, 3.5–4.5 tons163%25%74%79%
Non-ducted, up to 1.5 tons1151%39%43%56%
Non-ducted, 2 tons554%33%51%54%
Non-ducted, 2.5–3 tons654%43%55%51%
Non-ducted, 3.5–4.5 tons119%38%3%2%

Every ACD model in the market

ACD’s 30 models with a known size and duct type, over the shape of the whole catalog.
ACD models by size and ratingColoured: ACD · grey shapes: all 11,475 models · lines: catalog medians by size
  • ACD models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 30 acd 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 ACD 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 ACD 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
1UHD09KCH38SB-OACD · LOMO 38SEERwith ductless indoor unit UHD09KCH38SB-I1 ton9,000 Btu/h · Non-ducted144%1.9111.013,00027.0CEE 25CEE 26XcelES CC2202409832Non-ducted, up to 1.5 tons80.1
2MPD24KCH21SB-OACD · Free Match2 tons23,200 Btu/h · Non-ducted90%2.1010.021,60021.0CEE 25CEE 26XcelES CC3210534128Non-ducted, 2 tons76.1
3MPD42KCH21SB-OACD · Free Match3 tons36,000 Btu/h · Non-ducted81%1.9210.032,40021.0CEE 25CEE 26XcelES CC3210534131Non-ducted, 2.5–3 tons73.7
4MPD18KCH21SB-OACD · Free Match1.5 tons17,000 Btu/h · Non-ducted76%2.2110.013,60021.0CEE 25CEE 26XcelES CC3210534127Non-ducted, up to 1.5 tons73.1
5UHD24KCH22S-OACD · LOMO 38SEERwith ductless indoor unit UHD24KCH22S-I2 tons22,000 Btu/h · Non-ducted100%1.909.524,00021.5CEE 25CEE 26XcelES CC2202132789Non-ducted, 2 tons68.5

All-around best

Top 5 ACD 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
1UHD09KCH38SB-OACD · LOMO 38SEERwith ductless indoor unit UHD09KCH38SB-I1 ton9,000 Btu/h · Non-ducted144%1.9111.027.016.6CEE 25CEE 26XcelES CC2202409832Non-ducted, up to 1.5 tons88.780.197.380.1
2UHD24KCH22S-OACD · LOMO 38SEERwith ductless indoor unit UHD24KCH22S-I2 tons22,000 Btu/h · Non-ducted100%1.909.521.513.0CEE 25CEE 26XcelES CC2202132789Non-ducted, 2 tons76.368.584.168.5
3MPD24KCH21SB-OACD · Free Match2 tons23,200 Btu/h · Non-ducted90%2.1010.021.012.5CEE 25CEE 26XcelES CC3210534128Non-ducted, 2 tons71.576.166.876.1
4MPD42KCH21SB-OACD · Free Match3 tons36,000 Btu/h · Non-ducted81%1.9210.021.012.0CEE 25CEE 26XcelES CC3210534131Non-ducted, 2.5–3 tons70.273.766.773.7
5MPD30KCH21SB-OACD · Free Match2.5 tons28,400 Btu/h · Non-ducted76%1.8410.021.012.5CEE 25CEE 26XcelES CC3210534129Non-ducted, 2.5–3 tons69.263.475.063.4

Best model on each rating

ACD’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FMPD18KCH21SB-O2.21Non-ducted, up to 1.5 tons89%210534127
Capacity retention at 5°FUHD09KCH38SB-O144%Non-ducted, up to 1.5 tons99%202409832
HSPF2UHD09KCH38SB-O11.0Non-ducted, up to 1.5 tons88%202409832
SEER2UHD09KCH38SB-O27.0Non-ducted, up to 1.5 tons95%202409832
EER2UHD09KCH38SB-O16.6Non-ducted, up to 1.5 tons99%202409832
Heating capacity at 5°FMUD18KCH23S-O21,800 Btu/hNon-ducted, up to 1.5 tons99%206428584

All 25 ACD models in Explore

ACD 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.
ACD: 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 tons35.6(50 is the typical model of its size class)MPD18KCH21SB-O1 of 1 models qualify · AHRI 21053413231.2(50 is the typical model of its size class)MPD18KCH21SB-O1 of 1 models have all five ratings · AHRI 210534132
Ducted, 2 tons50.1(50 is the typical model of its size class)MPD24KCH21SB-O1 of 1 models qualify · AHRI 21053413360.8(50 is the typical model of its size class)FXD-ACD36with ducted air handler AH2242 of 2 models have all five ratings · AHRI 207497901
Ducted, 2.5–3 tons55.3(50 is the typical model of its size class)FXD-ACD36with ducted air handler AH2364 of 4 models qualify · AHRI 20749790253.1(50 is the typical model of its size class)MPD30KCH21SB-O3 of 3 models have all five ratings · AHRI 210534134
Ducted, 3.5–4.5 tons58.1(50 is the typical model of its size class)FXD-ACD60with ducted air handler AH2481 of 1 models qualify · AHRI 20749790363.3(50 is the typical model of its size class)FXD-ACD60with ducted air handler AH2481 of 1 models have all five ratings · AHRI 207497903
Non-ducted, up to 1.5 tons80.1(50 is the typical model of its size class)UHD09KCH38SB-Owith ductless indoor unit UHD09KCH38SB-I10 of 11 models qualify · AHRI 20240983288.7(50 is the typical model of its size class)UHD09KCH38SB-Owith ductless indoor unit UHD09KCH38SB-I11 of 11 models have all five ratings · AHRI 202409832
Non-ducted, 2 tons76.1(50 is the typical model of its size class)MPD24KCH21SB-O4 of 5 models qualify · AHRI 21053412876.3(50 is the typical model of its size class)UHD24KCH22S-Owith ductless indoor unit UHD24KCH22S-I5 of 5 models have all five ratings · AHRI 202132789
Non-ducted, 2.5–3 tons73.7(50 is the typical model of its size class)MPD42KCH21SB-O6 of 6 models qualify · AHRI 21053413170.2(50 is the typical model of its size class)MPD42KCH21SB-O6 of 6 models have all five ratings · AHRI 210534131
Non-ducted, 3.5–4.5 tons31.6(50 is the typical model of its size class)MUD42KCH23S-O1 of 1 models qualify · AHRI 20642858718.7(50 is the typical model of its size class)MUD42KCH23S-O1 of 1 models have all five ratings · AHRI 206428587

All-around board, every manufacturer

Newest ACD certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified ACD outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
FXD-ACD36ACDwith indoor coil GCAT24F/NAA and furnace C75-2-V2 tons23,000 Btu/h · Ducted1.8083%8.515.2CEE 25CEE 26XcelES CC8217592229
FXD-ACD60ACDwith indoor coil GCAT60H/NAA and furnace C105-M-V4 tons48,000 Btu/h · Ducted1.8072%8.515.2CEE 25CEE 26XcelES CC6217483012
PUD18KCH23S-O*ACD · Pularwith ductless indoor unit PUD18KCH23S-I1.5 tons18,000 Btu/h · Non-ducted1.8572%9.023.0CEE 25CEE 26XcelES CC1214229583
UHD24KCH22S-OACD · LOMO 38SEERwith ductless indoor unit UHD24KCH22SB-I2 tons22,000 Btu/h · Non-ducted1.90100%9.521.5CEE 25CEE 26XcelES CC2211749868
UHD18KCH25S-OACD · LOMO 38SEERwith ductless indoor unit UHD18KCH25SB-I1.5 tons18,000 Btu/h · Non-ducted1.80111%10.022.0CEE 25CEE 26XcelES CC2211749867

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Manufacturers of a similar size, side by side.

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