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Della heat pump efficiency: 22 outdoor models compared

Della has 22 heat pump outdoor models certified with this refrigerant group, in 22 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 Della makes. Ranks are among manufacturers with a QMID on file and at least 10 scored models.

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

ManufacturerData as of updated · sources

Outdoor models
22
AHRI certifications
22
Efficiency index
39%
Typical model vs same-size, same-type peers (15 models)
Meet CEE 2025
54.5%
12 models

How Della 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.
Della against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Della’s own modelsDella is strongest on COP at 5°F (its typical model beats 42% of comparable models) and weakest on HSPF2 (23%).
  • Della
  • Middle half of its models
  • Other ranked manufacturers
Della

Source: AHRI Directory, NEEP · as of

Average peer percentile of Della’s models
RatingBeats comparable modelsRankRaw median
Efficiency index15 models scored39%27th of 27—
COP at 5°F15 models scored42%25th of 271.80
Capacity retention at 5°F15 models scored37%26th of 2770%
HSPF222 models scored23%27th of 278.5
SEER222 models scored35%27th of 2719.0
EER222 models scored28%27th of 2710.0
Heating capacity at 5°F15 models scored37%26th of 2711,600 Btu/h

Standards met

Share of Della’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)54.5%12
CEE 2026 Tier 1 (Split ASHP)45.5%10
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)36.4%8
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate18.2%4

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
Della’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
  • Della (median, middle 50%, 10th–90th)
  • All models of the group
Non-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 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 tons1643%49%22%36%
Non-ducted, 2 tons339%44%27%31%
Non-ducted, 2.5–3 tons327%15%26%36%

Every Della model in the market

Della’s 22 models with a known size and duct type, over the shape of the whole catalog.
Della models by size and ratingColoured: Della · grey shapes: all 11,475 models · lines: catalog medians by size
  • Della models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 22 della 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 Della 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 Della 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
1048-TP-12K2V-23S-OUTDELLA · TPwith ductless indoor unit 048-TP-12K2V-23S-IN1 ton12,000 Btu/h · Non-ducted76%2.189.59,17023.0CEE 25CEE 26XcelES CC1213927343Non-ducted, up to 1.5 tons68.8
2048-TP-12K1V-22S-OUTDELLA · TPwith ductless indoor unit 048-TP-12K1V-22S-IN1 ton12,000 Btu/h · Non-ducted75%2.199.08,97022.0CEE 25CEE 26XcelES CC1213927342Non-ducted, up to 1.5 tons62.5
3048-TP-9K2V-23S-OUTDELLA · TPwith ductless indoor unit 048-TP-9K2V-23S-IN1 ton9,000 Btu/h · Non-ducted77%2.039.27,35023.5CEE 25CEE 26XcelES CC1213927341Non-ducted, up to 1.5 tons61.3
4048-TP-9K1V-23S-OUTDELLA · TPwith ductless indoor unit 048-TP-9K1V-23S-IN1 ton9,000 Btu/h · Non-ducted77%2.019.07,34023.0CEE 25CEE 26XcelES CC1213927340Non-ducted, up to 1.5 tons57.6
5048-TP-18K2V-22S-OUTDELLA · TPwith ductless indoor unit 048-TP-18K2V-22S-IN1.5 tons18,000 Btu/h · Non-ducted70%2.219.012,60022.0CEE 25CEE 26Xcel1213927344Non-ducted, up to 1.5 tons56.5

All-around best

Top 5 Della 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
1048-TP-12K2V-23S-OUTDELLA · TPwith ductless indoor unit 048-TP-12K2V-23S-IN1 ton12,000 Btu/h · Non-ducted76%2.189.523.013.0CEE 25CEE 26XcelES CC1213927343Non-ducted, up to 1.5 tons70.868.872.968.8
2048-TP-9K2V-23S-OUTDELLA · TPwith ductless indoor unit 048-TP-9K2V-23S-IN1 ton9,000 Btu/h · Non-ducted77%2.039.223.513.0CEE 25CEE 26XcelES CC1213927341Non-ducted, up to 1.5 tons68.361.375.461.3
3048-TP-18K2V-22S-OUTDELLA · TPwith ductless indoor unit 048-TP-18K2V-22S-IN1.5 tons18,000 Btu/h · Non-ducted70%2.219.022.013.0CEE 25CEE 26Xcel1213927344Non-ducted, up to 1.5 tons61.756.566.856.5
4048-TP-9K1V-23S-OUTDELLA · TPwith ductless indoor unit 048-TP-9K1V-23S-IN1 ton9,000 Btu/h · Non-ducted77%2.019.023.012.5CEE 25CEE 26XcelES CC1213927340Non-ducted, up to 1.5 tons60.157.662.757.6
5048-TP-12K1V-22S-OUTDELLA · TPwith ductless indoor unit 048-TP-12K1V-22S-IN1 ton12,000 Btu/h · Non-ducted75%2.199.022.012.5CEE 25CEE 26XcelES CC1213927342Non-ducted, up to 1.5 tons59.662.556.762.5

Best model on each rating

Della’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°F048-TP-18K2V-22S-OUT2.21Non-ducted, up to 1.5 tons89%213927344
Capacity retention at 5°F048-TP-9K2V-23S-OUT77%Non-ducted, up to 1.5 tons64%213927341
HSPF2048-TP-12K2V-23S-OUT9.5Non-ducted, up to 1.5 tons57%213927343
SEER2048-TP-9K2V-23S-OUT23.5Non-ducted, up to 1.5 tons79%213927341
EER2048-TP-9K2V-23S-OUT13.0Non-ducted, up to 1.5 tons68%213927341
Heating capacity at 5°F048-TL-18K-MODU13,000 Btu/hNon-ducted, up to 1.5 tons78%211042065

All 22 Della models in Explore

Della 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.
Della: 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 tons68.8(50 is the typical model of its size class)048-TP-12K2V-23S-OUTwith ductless indoor unit 048-TP-12K2V-23S-IN8 of 16 models qualify · AHRI 21392734370.8(50 is the typical model of its size class)048-TP-12K2V-23S-OUTwith ductless indoor unit 048-TP-12K2V-23S-IN10 of 16 models have all five ratings · AHRI 213927343
Non-ducted, 2 tonsNone on this board (0 of 3 models qualify)53.0(50 is the typical model of its size class)048-TP-24K2V-20S-OUTwith ductless indoor unit 048-TP-24K2V-20S-IN2 of 3 models have all five ratings · AHRI 213927345
Non-ducted, 2.5–3 tonsNone on this board (0 of 3 models qualify)29.5(50 is the typical model of its size class)048-TL-36K-MODU3 of 3 models have all five ratings · AHRI 211042067

All-around board, every manufacturer

Newest Della certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Della outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
048-IF-22K2V-17S-OUTDELLAwith ductless indoor unit 048-IF-22K2V-17S-IN2 tons22,000 Btu/h · Non-ducted——8.017.0None1213927349
048-IF-16K2V-17S-OUTDELLAwith ductless indoor unit 048-IF-16K2V-17S-IN1.5 tons16,500 Btu/h · Non-ducted——8.517.0None1213927348
048-IF-11K2V-17S-OUTDELLAwith ductless indoor unit 048-IF-11K2V-17S-IN1 ton11,000 Btu/h · Non-ducted——8.017.0None1213927347
048-IF-11K1V-17S-OUTDELLAwith ductless indoor unit 048-IF-11K1V-17S-IN1 ton11,000 Btu/h · Non-ducted——8.017.0None1213927346
048-TP-24K2V-20S-OUTDELLA · TPwith ductless indoor unit 048-TP-24K2V-20S-IN2 tons23,000 Btu/h · Non-ducted1.9670%9.020.0CEE 25CEE 261213927345

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Manufacturers of a similar size, side by side.

Compare with any manufacturer

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