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Daizuki heat pump efficiency: 34 outdoor models compared

Daizuki has 34 heat pump outdoor models certified with this refrigerant group, in 54 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 Daizuki makes. Daizuki 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
34
AHRI certifications
54
Efficiency index
52%
Typical model vs same-size, same-type peers (31 models)
Meet CEE 2025
58.8%
20 models

How Daizuki 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.
Daizuki against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Daizuki’s own modelsDaizuki is strongest on SEER2 (its typical model beats 52% of comparable models) and weakest on COP at 5°F (39%).
  • Daizuki
  • Middle half of its models
  • Other ranked manufacturers
Daizuki

Source: AHRI Directory, NEEP · as of

Average peer percentile of Daizuki’s models
RatingBeats comparable modelsRankRaw median
Efficiency index31 models scored52%Not ranked—
COP at 5°F31 models scored39%Not ranked1.80
Capacity retention at 5°F31 models scored43%Not ranked70%
HSPF242 models scored40%Not ranked8.5
SEER242 models scored52%Not ranked19.0
EER242 models scored43%Not ranked10.0
Heating capacity at 5°F31 models scored42%Not ranked11,600 Btu/h

Standards met

Share of Daizuki’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)58.8%20
CEE 2026 Tier 1 (Split ASHP)55.9%19
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)41.2%14
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.
Daizuki’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
  • Daizuki (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 tons468%65%82%77%
Ducted, 2 tons184%80%98%85%
Ducted, 2.5–3 tons266%38%75%95%
Ducted, 3.5–4.5 tons164%10%96%95%
Non-ducted, up to 1.5 tons2146%36%31%45%
Non-ducted, 2 tons542%35%32%42%
Non-ducted, 2.5–3 tons753%23%25%38%
Non-ducted, 3.5–4.5 tons159%22%8%97%

Every Daizuki model in the market

Daizuki’s 42 models with a known size and duct type, over the shape of the whole catalog.
Daizuki models by size and ratingColoured: Daizuki · grey shapes: all 11,475 models · lines: catalog medians by size
  • Daizuki models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 42 daizuki 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 Daizuki 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 Daizuki 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
1DXLC-0923-1ZDaizukiwith ductless indoor unit DXMH09E426-251 ton9,000 Btu/h · Non-ducted86%2.1912.38,58125.5CEE 25CEE 26Xcel3216021063Non-ducted, up to 1.5 tons86.0
2DXLC-2423-1ZDaizukiwith ducted air handler DXFU24E426-212 tons23,000 Btu/h · Ducted80%2.3011.220,00019.0CEE 25CEE 26Xcel5216021070Ducted, 2 tons80.3
3DXLC-1223-1ZDaizukiwith ductless indoor unit DXMH12E426-221 ton12,000 Btu/h · Non-ducted75%2.1910.78,98124.6CEE 25CEE 26Xcel3216021064Non-ducted, up to 1.5 tons77.3
4DXLC-2423-1ZDaizukiwith ductless indoor unit DXFC24E426-202 tons24,000 Btu/h · Non-ducted76%2.2010.318,20021.2CEE 25CEE 26Xcel5217196893Non-ducted, 2 tons74.1
5DXLC-0923-1ZDaizukiwith ducted air handler DXFU09E426-201 ton9,000 Btu/h · Ducted80%2.0910.28,00019.2CEE 25CEE 26Xcel3216021067Ducted, up to 1.5 tons70.4

All-around best

Top 5 Daizuki 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
1DXLC-0923-1ZDaizukiwith ductless indoor unit DXMH09E426-251 ton9,000 Btu/h · Non-ducted86%2.1912.325.515.0CEE 25CEE 26Xcel3216021063Non-ducted, up to 1.5 tons88.486.090.886.0
2DXLC-2423-1ZDaizukiwith ducted air handler DXFU24E426-212 tons23,000 Btu/h · Ducted80%2.3011.219.012.5CEE 25CEE 26Xcel5216021070Ducted, 2 tons83.880.387.480.3
3DXLC-1223-1ZDaizukiwith ductless indoor unit DXMH12E426-221 ton12,000 Btu/h · Non-ducted75%2.1910.724.613.7CEE 25CEE 26Xcel3216021064Non-ducted, up to 1.5 tons81.277.385.077.3
4DXLC-1823-1ZDaizukiwith ducted air handler DXFU18E426-191.5 tons17,000 Btu/h · Ducted65%2.4010.620.012.5CEE 25CEE 265216021069Ducted, up to 1.5 tons78.568.788.2Not a pick
5DXLC-2423-1ZDaizukiwith ductless indoor unit DXMH24E426-202 tons24,000 Btu/h · Non-ducted70%2.0410.022.014.0CEE 25CEE 26Xcel5216021066Non-ducted, 2 tons77.560.494.674.1

Best model on each rating

Daizuki’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FDXLC-1223-1Z2.28Non-ducted, up to 1.5 tons92%217196889
Capacity retention at 5°FDXLC-0923-1Z86%Non-ducted, up to 1.5 tons71%216021063
HSPF2DXLC-2423-1Z11.2Ducted, 2 tons98%216021070
SEER2DXFM-2723-3Z24.6Non-ducted, 2.5–3 tons99%211994914
EER2DXLC-2423-1Z14.0Non-ducted, 2 tons97%216021066
Heating capacity at 5°FDXFM-1823-2Z14,000 Btu/hNon-ducted, up to 1.5 tons85%211994917

All 34 Daizuki models in Explore

Daizuki 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.
Daizuki: 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 tons70.4(50 is the typical model of its size class)DXLC-0923-1Zwith ducted air handler DXFU09E426-203 of 4 models qualify · AHRI 21602106778.5(50 is the typical model of its size class)DXLC-1823-1Zwith ducted air handler DXFU18E426-194 of 4 models have all five ratings · AHRI 216021069
Ducted, 2 tons80.3(50 is the typical model of its size class)DXLC-2423-1Zwith ducted air handler DXFU24E426-211 of 1 models qualify · AHRI 21602107083.8(50 is the typical model of its size class)DXLC-2423-1Zwith ducted air handler DXFU24E426-211 of 1 models have all five ratings · AHRI 216021070
Ducted, 2.5–3 tonsNone on this board (0 of 2 models qualify)75.5(50 is the typical model of its size class)DXFM-2723-3Z2 of 2 models have all five ratings · AHRI 211994915
Ducted, 3.5–4.5 tonsNone on this board (0 of 1 models qualify)63.5(50 is the typical model of its size class)DXFM-4823-5Z1 of 1 models have all five ratings · AHRI 211994921
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class)DXLC-0923-1Zwith ductless indoor unit DXMH09E426-2511 of 21 models qualify · AHRI 21602106388.4(50 is the typical model of its size class)DXLC-0923-1Zwith ductless indoor unit DXMH09E426-2515 of 21 models have all five ratings · AHRI 216021063
Non-ducted, 2 tons74.1(50 is the typical model of its size class)DXLC-2423-1Zwith ductless indoor unit DXFC24E426-201 of 5 models qualify · AHRI 21719689377.5(50 is the typical model of its size class)DXLC-2423-1Zwith ductless indoor unit DXMH24E426-204 of 5 models have all five ratings · AHRI 216021066
Non-ducted, 2.5–3 tons53.0(50 is the typical model of its size class)DXFM-2723-3Z1 of 7 models qualify · AHRI 21199491473.9(50 is the typical model of its size class)DXFM-2723-3Z3 of 7 models have all five ratings · AHRI 211994914
Non-ducted, 3.5–4.5 tons26.3(50 is the typical model of its size class)DXFM-4823-5Z1 of 1 models qualify · AHRI 21199492059.4(50 is the typical model of its size class)DXFM-4823-5Z1 of 1 models have all five ratings · AHRI 211994920

All-around board, every manufacturer

Newest Daizuki certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Daizuki outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
DXLC-2423-1ZDaizukiwith ducted air handler DXAH24E426-202 tons24,000 Btu/h · Ducted and non-ducted1.9056%8.118.0CEE 25CEE 26Xcel5217231886
DXLC-1823-1ZDaizukiwith ducted air handler DXAH18E426-211.5 tons18,000 Btu/h · Ducted and non-ducted2.3267%9.317.8CEE 25CEE 265217231885
DXLC-1223-1ZDaizukiwith ductless indoor unit DXCC12E426-201 ton12,000 Btu/h · Ducted and non-ducted2.2867%10.022.7CEE 25CEE 26Xcel3217196889
DXLC-0923-1ZDaizukiwith ductless indoor unit DXCC09E426-201 ton9,000 Btu/h · Ducted and non-ducted1.9074%10.020.0CEE 25CEE 26Xcel3217196888
DXFM-3623-4ZDaizuki3 tons36,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.7466%9.422.0CEE 25CEE 263211994925

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