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SUNCHILLERS heat pump efficiency: 8 outdoor models compared

SUNCHILLERS has 8 heat pump outdoor models certified with this refrigerant group, in 20 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 SUNCHILLERS makes. SUNCHILLERS 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
8
AHRI certifications
20
Efficiency index
68%
Typical model vs same-size, same-type peers (15 models)
Meet CEE 2025
100%
8 models

How SUNCHILLERS 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.
SUNCHILLERS against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of SUNCHILLERS’s own modelsSUNCHILLERS is strongest on SEER2 (its typical model beats 88% of comparable models) and weakest on capacity retention at 5°F (45%).
  • SUNCHILLERS
  • Middle half of its models
  • Other ranked manufacturers
SUNCHILL…

Source: AHRI Directory, NEEP · as of

Average peer percentile of SUNCHILLERS’s models
RatingBeats comparable modelsRankRaw median
Efficiency index15 models scored68%Not ranked—
COP at 5°F15 models scored50%Not ranked2.00
Capacity retention at 5°F15 models scored45%Not ranked68%
HSPF215 models scored74%Not ranked10.1
SEER215 models scored88%Not ranked23.7
EER215 models scored71%Not ranked12.6
Heating capacity at 5°F15 models scored45%Not ranked19,500 Btu/h

Standards met

Share of SUNCHILLERS’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)100%8
CEE 2026 Tier 1 (Split ASHP)87.5%7
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)50%4
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.
SUNCHILLERS’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
  • SUNCHILLERS (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 tons261%66%78%68%
Ducted, 2 tons184%80%98%85%
Ducted, 2.5–3 tons363%29%75%94%
Ducted, 3.5–4.5 tons164%10%96%95%
Non-ducted, up to 1.5 tons378%83%88%84%
Non-ducted, 2 tons178%67%74%91%
Non-ducted, 2.5–3 tons364%36%65%95%
Non-ducted, 3.5–4.5 tons156%22%8%97%

Every SUNCHILLERS model in the market

SUNCHILLERS’s 15 models with a known size and duct type, over the shape of the whole catalog.
SUNCHILLERS models by size and ratingColoured: SUNCHILLERS · grey shapes: all 11,475 models · lines: catalog medians by size
  • SUNCHILLERS models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 15 sunchillers 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 SUNCHILLERS 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 SUNCHILLERS 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
19WODU-ULSUNCHILLERSwith ductless indoor unit 9WIDU-UL1 ton9,000 Btu/h · Non-ducted86%2.1912.38,58125.5CEE 25CEE 26Xcel1208447609Non-ducted, up to 1.5 tons86.0
224WODU-ULSUNCHILLERSwith ducted air handler 24DIDU-UL2 tons23,000 Btu/h · Ducted80%2.3011.220,00019.0CEE 25CEE 26Xcel2208447613Ducted, 2 tons80.3
312WODU-ULSUNCHILLERSwith ducted air handler 12DIDU-UL1 ton11,500 Btu/h · Ducted70%2.2610.38,40019.0CEE 25CEE 26Xcel2208447612Ducted, up to 1.5 tons67.8
424WODU-ULSUNCHILLERSwith ductless indoor unit 24WIDU-UL2 tons24,000 Btu/h · Non-ducted70%2.0410.017,50022.0CEE 25CEE 26Xcel2208447611Non-ducted, 2 tons60.4
5M18ODU-UL2PSUNCHILLERS1.5 tons18,000 Btu/h · Non-ducted74%1.8610.214,00021.0CEE 25CEE 26Xcel3207804200Non-ducted, up to 1.5 tons56.6

All-around best

Top 5 SUNCHILLERS 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
19WODU-ULSUNCHILLERSwith ductless indoor unit 9WIDU-UL1 ton9,000 Btu/h · Non-ducted86%2.1912.325.515.0CEE 25CEE 26Xcel1208447609Non-ducted, up to 1.5 tons88.486.090.886.0
224WODU-ULSUNCHILLERSwith ducted air handler 24DIDU-UL2 tons23,000 Btu/h · Ducted80%2.3011.219.012.5CEE 25CEE 26Xcel2208447613Ducted, 2 tons83.880.387.480.3
312WODU-ULSUNCHILLERSwith ductless indoor unit 12WIDU-UL1 ton12,000 Btu/h · Non-ducted67%2.3910.724.613.7CEE 25CEE 262208447610Non-ducted, up to 1.5 tons78.271.485.0Not a pick
4M27ODU-UL2PSUNCHILLERS2.5 tons28,000 Btu/h · Non-ducted68%2.009.524.612.7CEE 25CEE 263207804189Non-ducted, 2.5–3 tons78.261.694.7Not a pick
524WODU-ULSUNCHILLERSwith ductless indoor unit 24WIDU-UL2 tons24,000 Btu/h · Non-ducted70%2.0410.022.014.0CEE 25CEE 26Xcel2208447611Non-ducted, 2 tons77.560.494.760.4

Best model on each rating

SUNCHILLERS’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°F12WODU-UL2.39Non-ducted, up to 1.5 tons97%208447610
Capacity retention at 5°F9WODU-UL86%Non-ducted, up to 1.5 tons71%208447609
HSPF224WODU-UL11.2Ducted, 2 tons98%208447613
SEER2M27ODU-UL2P24.6Non-ducted, 2.5–3 tons99%207804189
EER224WODU-UL14.0Non-ducted, 2 tons97%208447611
Heating capacity at 5°FM18ODU-UL2P14,000 Btu/hNon-ducted, up to 1.5 tons85%207804200

All 8 SUNCHILLERS models in Explore

SUNCHILLERS 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.
SUNCHILLERS: 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 tons67.8(50 is the typical model of its size class)12WODU-ULwith ducted air handler 12DIDU-UL2 of 2 models qualify · AHRI 20844761261.5(50 is the typical model of its size class)12WODU-ULwith ducted air handler 12DIDU-UL2 of 2 models have all five ratings · AHRI 208447612
Ducted, 2 tons80.3(50 is the typical model of its size class)24WODU-ULwith ducted air handler 24DIDU-UL1 of 1 models qualify · AHRI 20844761383.8(50 is the typical model of its size class)24WODU-ULwith ducted air handler 24DIDU-UL1 of 1 models have all five ratings · AHRI 208447613
Ducted, 2.5–3 tonsNone on this board (0 of 3 models qualify)75.4(50 is the typical model of its size class)M27ODU-UL2P3 of 3 models have all five ratings · AHRI 207804190
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)M48ODU-UL2P1 of 1 models have all five ratings · AHRI 207804196
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class)9WODU-ULwith ductless indoor unit 9WIDU-UL2 of 3 models qualify · AHRI 20844760988.4(50 is the typical model of its size class)9WODU-ULwith ductless indoor unit 9WIDU-UL3 of 3 models have all five ratings · AHRI 208447609
Non-ducted, 2 tons60.4(50 is the typical model of its size class)24WODU-ULwith ductless indoor unit 24WIDU-UL1 of 1 models qualify · AHRI 20844761177.5(50 is the typical model of its size class)24WODU-ULwith ductless indoor unit 24WIDU-UL1 of 1 models have all five ratings · AHRI 208447611
Non-ducted, 2.5–3 tonsNone on this board (0 of 3 models qualify)78.2(50 is the typical model of its size class)M27ODU-UL2P3 of 3 models have all five ratings · AHRI 207804189
Non-ducted, 3.5–4.5 tonsNone on this board (0 of 1 models qualify)56.1(50 is the typical model of its size class)M48ODU-UL2P1 of 1 models have all five ratings · AHRI 207804195

All-around board, every manufacturer

Newest SUNCHILLERS certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified SUNCHILLERS outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
M36ODU-ULTPSUNCHILLERS3 tons36,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.7465%9.421.6CEE 253209948160
24WODU-ULSUNCHILLERSwith ducted air handler 24DIDU-UL2 tons23,000 Btu/h · Ducted and non-ducted2.3080%11.219.0CEE 25CEE 26Xcel2208447613
12WODU-ULSUNCHILLERSwith ducted air handler 12DIDU-UL1 ton11,500 Btu/h · Ducted and non-ducted2.2670%10.319.0CEE 25CEE 26Xcel2208447612
9WODU-ULSUNCHILLERSwith ductless indoor unit 9WIDU-UL1 ton9,000 Btu/h · Non-ducted2.1986%12.325.5CEE 25CEE 26Xcel1208447609
M18ODU-UL2PSUNCHILLERS1.5 tons18,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8674%10.221.0CEE 25CEE 26Xcel3207804200

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