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Stealth Comfort heat pump efficiency: 17 outdoor models compared

Stealth Comfort has 17 heat pump outdoor models certified with this refrigerant group, in 29 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 Stealth Comfort makes. Stealth Comfort 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
17
AHRI certifications
29
Efficiency index
50%
Typical model vs same-size, same-type peers (22 models)
Meet CEE 2025
82.4%
14 models

How Stealth Comfort 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.
Stealth Comfort against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Stealth Comfort’s own modelsStealth Comfort is strongest on capacity retention at 5°F (its typical model beats 77% of comparable models) and weakest on COP at 5°F (29%).
  • Stealth Comfort
  • Middle half of its models
  • Other ranked manufacturers
Stealth …

Source: AHRI Directory, NEEP · as of

Average peer percentile of Stealth Comfort’s models
RatingBeats comparable modelsRankRaw median
Efficiency index22 models scored50%Not ranked—
COP at 5°F22 models scored29%Not ranked1.81
Capacity retention at 5°F22 models scored77%Not ranked90%
HSPF222 models scored49%Not ranked8.8
SEER222 models scored54%Not ranked20.0
EER222 models scored43%Not ranked11.3
Heating capacity at 5°F22 models scored72%Not ranked24,000 Btu/h

Standards met

Share of Stealth Comfort’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)82.4%14
CEE 2026 Tier 1 (Split ASHP)82.4%14
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)100%17
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate29.4%5

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
Stealth Comfort’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
  • Stealth Comfort (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 tons122%7%22%17%
Ducted, 2 tons448%16%53%52%
Ducted, 2.5–3 tons239%19%47%48%
Ducted, 3.5–4.5 tons454%23%59%68%
Non-ducted, up to 1.5 tons566%39%57%73%
Non-ducted, 2 tons263%51%74%58%
Non-ducted, 2.5–3 tons341%37%28%36%
Non-ducted, 3.5–4.5 tons119%38%3%2%

Every Stealth Comfort model in the market

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

Dots: 22 stealth comfort 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 Stealth Comfort 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 Stealth Comfort 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
1SC-09ZPL-HP230Stealth Comfortwith ductless indoor unit SC-09WPL-HP2301 ton9,000 Btu/h · Non-ducted144%1.9111.013,00027.0CEE 25CEE 26Xcel1208650753Non-ducted, up to 1.5 tons80.1
2SC-27Z-HH-M4BStealth Comfort · Extreme Heat2 tons23,200 Btu/h · Non-ducted90%2.1010.021,60021.0CEE 25CEE 26XcelES CC3215742360Non-ducted, 2 tons76.1
3SC-27Z-HH-M3Stealth Comfort2 tons22,000 Btu/h · Non-ducted115%1.8010.030,00020.0CEE 25CEE 26Xcel3208674945Non-ducted, 2 tons66.1
4SC-18Z-HH-M2Stealth Comfort1.5 tons18,000 Btu/h · Non-ducted104%1.8110.021,80020.0CEE 25CEE 26Xcel3208674942Non-ducted, up to 1.5 tons64.2
5ACIQ-PHH1748000K000VStealth Comfort · Extreme Heat Inverter Rooftop4 tons47,000 Btu/h · Ducted98%1.808.546,00017.8CEE 25CEE 26XcelES CC1215387232Ducted, 3.5–4.5 tons62.4

All-around best

Top 5 Stealth Comfort 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
1SC-09ZPL-HP230Stealth Comfortwith ductless indoor unit SC-09WPL-HP2301 ton9,000 Btu/h · Non-ducted144%1.9111.027.016.6CEE 25CEE 26Xcel1208650753Non-ducted, up to 1.5 tons88.780.197.380.1
2SC-27Z-HH-M4BStealth Comfort · Extreme Heat2 tons23,200 Btu/h · Non-ducted90%2.1010.021.012.5CEE 25CEE 26XcelES CC3215742360Non-ducted, 2 tons71.576.166.876.1
3SC-12ZPL-HP230Stealth Comfortwith ductless indoor unit SC-12WPL-HP2301 ton12,000 Btu/h · Non-ducted98%1.918.524.014.0CEE 25CEE 26Xcel1208650754Non-ducted, up to 1.5 tons68.150.585.750.5
4SC-18ZPL-HP230Stealth Comfortwith ductless indoor unit SC-18WPL-HP2301.5 tons18,000 Btu/h · Non-ducted111%1.8010.022.013.5CEE 25CEE 26Xcel1208650755Non-ducted, up to 1.5 tons66.862.071.662.0
5ACIQ-PHH1748000K000VStealth Comfort · Extreme Heat Inverter Rooftop4 tons47,000 Btu/h · Ducted98%1.808.517.811.0CEE 25CEE 26XcelES CC1215387232Ducted, 3.5–4.5 tons66.762.471.162.4

Best model on each rating

Stealth Comfort’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FSC-27Z-HH-M4B2.10Non-ducted, 2 tons76%215742360
Capacity retention at 5°FSC-09ZPL-HP230144%Non-ducted, up to 1.5 tons99%208650753
HSPF2SC-09ZPL-HP23011.0Non-ducted, up to 1.5 tons88%208650753
SEER2SC-09ZPL-HP23027.0Non-ducted, up to 1.5 tons95%208650753
EER2SC-09ZPL-HP23016.6Non-ducted, up to 1.5 tons99%208650753
Heating capacity at 5°FSC-18Z-HH-M221,800 Btu/hNon-ducted, up to 1.5 tons99%208674942

All 17 Stealth Comfort models in Explore

Stealth Comfort 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.
Stealth Comfort: 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 tons35.2(50 is the typical model of its size class)SC-18Z-HH-M21 of 1 models qualify · AHRI 20867494322.0(50 is the typical model of its size class)SC-18Z-HH-M21 of 1 models have all five ratings · AHRI 208674943
Ducted, 2 tons54.2(50 is the typical model of its size class)ACIQ-PHH1824000K000V3 of 3 models qualify · AHRI 21538723060.8(50 is the typical model of its size class)SC-2436-HPwith ducted air handler SC-24-AH4 of 4 models have all five ratings · AHRI 211717293
Ducted, 2.5–3 tons55.3(50 is the typical model of its size class)SC-2436-HPwith ducted air handler SC-36-AH3 of 3 models qualify · AHRI 21171729454.6(50 is the typical model of its size class)ACIQ-PHH1836000K000V2 of 2 models have all five ratings · AHRI 215387231
Ducted, 3.5–4.5 tons62.4(50 is the typical model of its size class)ACIQ-PHH1748000K000V4 of 4 models qualify · AHRI 21538723266.7(50 is the typical model of its size class)ACIQ-PHH1748000K000V4 of 4 models have all five ratings · AHRI 215387232
Non-ducted, up to 1.5 tons80.1(50 is the typical model of its size class)SC-09ZPL-HP230with ductless indoor unit SC-09WPL-HP2305 of 5 models qualify · AHRI 20865075388.7(50 is the typical model of its size class)SC-09ZPL-HP230with ductless indoor unit SC-09WPL-HP2305 of 5 models have all five ratings · AHRI 208650753
Non-ducted, 2 tons76.1(50 is the typical model of its size class)SC-27Z-HH-M4B2 of 2 models qualify · AHRI 21574236071.5(50 is the typical model of its size class)SC-27Z-HH-M4B2 of 2 models have all five ratings · AHRI 215742360
Non-ducted, 2.5–3 tons44.1(50 is the typical model of its size class)SC-36ZGLD-HP230Bwith ductless indoor unit SC-36WGLD-HP230B3 of 3 models qualify · AHRI 21158058547.8(50 is the typical model of its size class)SC-36ZGLD-HP230Bwith ductless indoor unit SC-36WGLD-HP230B3 of 3 models have all five ratings · AHRI 211580585
Non-ducted, 3.5–4.5 tons31.6(50 is the typical model of its size class)SC-42Z-HH-M51 of 1 models qualify · AHRI 20867495118.7(50 is the typical model of its size class)SC-42Z-HH-M51 of 1 models have all five ratings · AHRI 208674951

All-around board, every manufacturer

Newest Stealth Comfort certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Stealth Comfort outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
SC-27Z-HH-M4BStealth Comfort · Extreme Heat2 tons23,200 Btu/h · Ducted and non-ducted and mixed (multi-zone)2.1090%10.021.0CEE 25CEE 26XcelES CC3215742360
ACIQ-PHH1760000K000VStealth Comfort · Extreme Heat Inverter Rooftop4.5 tons56,000 Btu/h · Ducted1.8079%8.317.0XcelES CC1215387233
ACIQ-PHH1748000K000VStealth Comfort · Extreme Heat Inverter Rooftop4 tons47,000 Btu/h · Ducted1.8098%8.517.8CEE 25CEE 26XcelES CC1215387232
ACIQ-PHH1836000K000VStealth Comfort · Extreme Heat Inverter Rooftop3 tons34,400 Btu/h · Ducted1.7572%8.817.8CEE 25CEE 26Xcel1215387231
ACIQ-PHH1824000K000VStealth Comfort · Extreme Heat Inverter Rooftop2 tons24,000 Btu/h · Ducted1.75100%8.817.8CEE 25CEE 26Xcel1215387230

Shares hardware with

Manufacturers whose models are the same equipment under another badge. About OEM families

No shared hardware found for Stealth Comfort in this group.

Compare Stealth Comfort

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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