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GENERALLUX STAR heat pump efficiency: 6 outdoor models compared

GENERALLUX STAR has 6 heat pump outdoor models certified with this refrigerant group, in 6 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 GENERALLUX STAR makes. GENERALLUX STAR 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
6
AHRI certifications
6
Efficiency index
50%
Typical model vs same-size, same-type peers (6 models)
Meet CEE 2025
100%
6 models

How GENERALLUX STAR 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.
GENERALLUX STAR against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of GENERALLUX STAR’s own modelsGENERALLUX STAR is strongest on heating capacity at 5°F (its typical model beats 62% of comparable models) and weakest on HSPF2 (42%).
  • GENERALLUX STAR
  • Middle half of its models
  • Other ranked manufacturers
GENERALL…

Source: AHRI Directory, NEEP · as of

Average peer percentile of GENERALLUX STAR’s models
RatingBeats comparable modelsRankRaw median
Efficiency index6 models scored50%Not ranked—
COP at 5°F6 models scored55%Not ranked1.95
Capacity retention at 5°F6 models scored60%Not ranked80%
HSPF26 models scored42%Not ranked9.7
SEER26 models scored48%Not ranked21.0
EER26 models scored47%Not ranked12.1
Heating capacity at 5°F6 models scored62%Not ranked15,850 Btu/h

Standards met

Share of GENERALLUX STAR’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)100%6
CEE 2026 Tier 1 (Split ASHP)100%6
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)83.3%5
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.
GENERALLUX STAR’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
  • GENERALLUX STAR (median, middle 50%, 10th–90th)
  • All models of the group
Non-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 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 tons452%67%49%47%
Non-ducted, 2 tons245%32%28%51%

Every GENERALLUX STAR model in the market

GENERALLUX STAR’s 6 models with a known size and duct type, over the shape of the whole catalog.
GENERALLUX STAR models by size and ratingColoured: GENERALLUX STAR · grey shapes: all 14,508 models · lines: catalog medians by size
  • GENERALLUX STAR models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 6 generallux star models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 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 tons8261.641.711.751.852.24
Ducted, 1 ton4071.801.902.052.412.45
Ducted, 1.5 tons9921.751.862.002.172.40
Ducted, 2 tons9991.751.862.002.182.30
Ducted, 2.5 tons1,0401.701.802.002.102.36
Ducted, 3 tons6961.801.902.002.102.42
Ducted, 3.5 tons8651.701.802.002.102.46
Ducted, 4 tons7261.801.862.002.122.41
Ducted, 4.5 tons6901.701.801.902.102.20
Ducted, 5 tons861.892.002.102.102.10
Non-ducted, 0.5 tons1,1861.751.801.902.002.22
Non-ducted, 1 ton1,3431.801.801.992.102.21
Non-ducted, 1.5 tons1,2611.801.802.002.102.31
Non-ducted, 2 tons7611.801.982.002.102.30
Non-ducted, 2.5 tons4031.801.852.002.002.10
Non-ducted, 3 tons4731.901.982.002.032.20
Non-ducted, 3.5 tons2802.002.002.002.052.10
Non-ducted, 4 tons2041.962.002.052.102.11
Non-ducted, 4.5 tons781.901.911.952.012.01
Non-ducted, 5 tons841.992.002.052.202.20

Source: AHRI Directory · as of

Top GENERALLUX STAR 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 GENERALLUX STAR 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
1GNS18HCH21R32OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS18HCH21R32I1.5 tons18,000 Btu/h · Non-ducted76%2.499.813,70021.0CEE 25CEE 26Xcel1215887344Non-ducted, up to 1.5 tons69.0
2GNS12HCH23R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS12HCH23R454I1 ton12,000 Btu/h · Non-ducted92%2.0010.011,00023.0CEE 25CEE 26Xcel1215887346Non-ducted, up to 1.5 tons68.4
3GNS18HCH21R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS18HCH21R454I1.5 tons18,000 Btu/h · Non-ducted100%1.9010.018,00021.0CEE 25CEE 26Xcel1215887347Non-ducted, up to 1.5 tons65.0
4GNS24HCH23R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS24HCH23R454I2 tons24,000 Btu/h · Non-ducted83%1.849.519,80022.5CEE 25CEE 26Xcel1215887348Non-ducted, 2 tons48.1
5GNS24HCH20R32OGENERALLUX STARwith ductless indoor unit GNS24HCH20R32I2 tons24,000 Btu/h · Non-ducted77%1.908.518,50019.5CEE 25CEE 26Xcel1215887345Non-ducted, 2 tons34.2

All-around best

Top 5 GENERALLUX STAR 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
1GNS12HCH23R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS12HCH23R454I1 ton12,000 Btu/h · Non-ducted92%2.0010.023.012.3CEE 25CEE 26Xcel1215887346Non-ducted, up to 1.5 tons64.168.459.868.4
2GNS18HCH21R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS18HCH21R454I1.5 tons18,000 Btu/h · Non-ducted100%1.9010.021.013.0CEE 25CEE 26Xcel1215887347Non-ducted, up to 1.5 tons60.265.055.365.0
3GNS24HCH23R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS24HCH23R454I2 tons24,000 Btu/h · Non-ducted83%1.849.522.512.3CEE 25CEE 26Xcel1215887348Non-ducted, 2 tons58.348.168.448.1
4GNS18HCH21R32OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS18HCH21R32I1.5 tons18,000 Btu/h · Non-ducted76%2.499.821.012.0CEE 25CEE 26Xcel1215887344Non-ducted, up to 1.5 tons55.369.041.669.0
5GNS24HCH20R32OGENERALLUX STARwith ductless indoor unit GNS24HCH20R32I2 tons24,000 Btu/h · Non-ducted77%1.908.519.510.6CEE 25CEE 26Xcel1215887345Non-ducted, 2 tons31.834.229.434.2

Best model on each rating

GENERALLUX STAR’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FGNS18HCH21R32O2.49Non-ducted, up to 1.5 tons98%215887344
Capacity retention at 5°FGNS18HCH21R454O100%Non-ducted, up to 1.5 tons87%215887347
HSPF2GNS12HCH23R454O10.0Non-ducted, up to 1.5 tons64%215887346
SEER2GNS24HCH23R454O22.5Non-ducted, 2 tons67%215887348
EER2GNS18HCH21R454O13.0Non-ducted, up to 1.5 tons65%215887347
Heating capacity at 5°FGNS18HCH21R454O18,000 Btu/hNon-ducted, up to 1.5 tons93%215887347

All 6 GENERALLUX STAR models in Explore

GENERALLUX STAR 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.
GENERALLUX STAR: 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 tons69.0(50 is the typical model of its size class)GNS18HCH21R32Owith ductless indoor unit GNS18HCH21R32I3 of 4 models qualify · AHRI 21588734464.1(50 is the typical model of its size class)GNS12HCH23R454Owith ductless indoor unit GNS12HCH23R454I4 of 4 models have all five ratings · AHRI 215887346
Non-ducted, 2 tons48.1(50 is the typical model of its size class)GNS24HCH23R454Owith ductless indoor unit GNS24HCH23R454I2 of 2 models qualify · AHRI 21588734858.3(50 is the typical model of its size class)GNS24HCH23R454Owith ductless indoor unit GNS24HCH23R454I2 of 2 models have all five ratings · AHRI 215887348

All-around board, every manufacturer

Newest GENERALLUX STAR certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified GENERALLUX STAR outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
GNS24HCH23R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS24HCH23R454I2 tons24,000 Btu/h · Non-ducted1.8483%9.522.5CEE 25CEE 26Xcel1215887348
GNS18HCH21R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS18HCH21R454I1.5 tons18,000 Btu/h · Non-ducted1.90100%10.021.0CEE 25CEE 26Xcel1215887347
GNS12HCH23R454OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS12HCH23R454I1 ton12,000 Btu/h · Non-ducted2.0092%10.023.0CEE 25CEE 26Xcel1215887346
GNS24HCH20R32OGENERALLUX STARwith ductless indoor unit GNS24HCH20R32I2 tons24,000 Btu/h · Non-ducted1.9077%8.519.5CEE 25CEE 26Xcel1215887345
GNS18HCH21R32OGENERALLUX STAR · HYPER HEATwith ductless indoor unit GNS18HCH21R32I1.5 tons18,000 Btu/h · Non-ducted2.4976%9.821.0CEE 25CEE 26Xcel1215887344

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