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LG heat pump efficiency: 78 outdoor models compared

LG has 78 heat pump outdoor models certified with this refrigerant group, in 175 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 LG 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
78
AHRI certifications
175
Efficiency index
65%
Typical model vs same-size, same-type peers (102 models)
Meet CEE 2025
74.4%
58 models

How LG 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.
LG against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of LG’s own modelsLG is strongest on HSPF2 (its typical model beats 70% of comparable models) and weakest on COP at 5°F (59%).
  • LG
  • Middle half of its models
  • Other ranked manufacturers
LG

Source: AHRI Directory, NEEP · as of

Average peer percentile of LG’s models
RatingBeats comparable modelsRankRaw median
Efficiency index102 models scored65%2nd of 27—
COP at 5°F105 models scored59%7th of 272.06
Capacity retention at 5°F109 models scored64%5th of 2780%
HSPF2111 models scored70%3rd of 279.5
SEER2111 models scored63%6th of 2720.2
EER2111 models scored69%1st of 2712.5
Heating capacity at 5°F109 models scored67%3rd of 2719,900 Btu/h

Standards met

Share of LG’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)74.4%58
CEE 2026 Tier 1 (Split ASHP)74.4%58
CEE Advanced Tier (Split ASHP)9%7
Xcel Energy Colorado cold-climate ASHP (2025)67.9%53
DOE Cold Climate Heat Pump Challenge9%7
ENERGY STAR Cold Climate44.9%35

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
LG’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
  • LG (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 modelsDucted, 5 tons and up1.90239 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 modelsNon-ducted, 5 tons and up2.1032 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 tons1157%58%53%41%
Ducted, 2 tons771%64%75%68%
Ducted, 2.5–3 tons980%66%79%77%
Ducted, 3.5–4.5 tons1579%65%88%85%
Ducted, 5 tons and up372%40%99%87%
Non-ducted, up to 1.5 tons3554%45%64%55%
Non-ducted, 2 tons1061%61%63%60%
Non-ducted, 2.5–3 tons1069%66%67%63%
Non-ducted, 3.5–4.5 tons1170%79%72%53%
Non-ducted, 5 tons and up355%44%48%63%

Every LG model in the market

LG’s 114 models with a known size and duct type, over the shape of the whole catalog.
LG models by size and ratingColoured: LG · grey shapes: all 11,475 models · lines: catalog medians by size
  • LG models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 114 lg 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 LG 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 LG 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
1LMU421HHVLG3.5 tons42,000 Btu/h · Non-ducted100%2.2911.048,00021.5CEE 25CEE 26CEE AdvXcelDOEES CC3206717001Non-ducted, 3.5–4.5 tons97.4
2ARUN038GSS4LG3 tons38,000 Btu/h · Ducted96%3.1910.640,32020.1CEE 25CEE 26XcelES CC38717932Ducted, 2.5–3 tons97.0
3LMU480HHVLG4 tons48,000 Btu/h · Non-ducted100%2.3410.552,50020.5CEE 25CEE 26CEE AdvXcelDOEES CC3206717002Non-ducted, 3.5–4.5 tons95.8
4LAU090HYV3LG · LAU090HYV3with ductless indoor unit LAN090HYV31 ton9,000 Btu/h · Non-ducted100%3.1313.511,00027.0CEE 25CEE 26CEE AdvXcelDOEES CC1204825177Non-ducted, up to 1.5 tons95.4
5LAU150HYV3LG · LAU150HYV3with ductless indoor unit LAN150HYV31.5 tons15,000 Btu/h · Non-ducted105%2.5511.018,95025.0CEE 25CEE 26CEE AdvXcelDOEES CC1204825179Non-ducted, up to 1.5 tons93.2

All-around best

Top 5 LG 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
1ARUN038GSS4LG3 tons38,000 Btu/h · Ducted96%3.1910.620.114.0CEE 25CEE 26XcelES CC38717932Ducted, 2.5–3 tons97.597.098.097.0
2LAU090HYV3LG · LAU090HYV3with ductless indoor unit LAN090HYV31 ton9,000 Btu/h · Non-ducted100%3.1313.527.015.8CEE 25CEE 26CEE AdvXcelDOEES CC1204825177Non-ducted, up to 1.5 tons95.395.495.395.4
3LMU421HHVLG3.5 tons42,000 Btu/h · Non-ducted100%2.2911.021.513.8CEE 25CEE 26CEE AdvXcelDOEES CC3206717001Non-ducted, 3.5–4.5 tons92.197.486.797.4
4LAU150HYV3LG · LAU150HYV3with ductless indoor unit LAN150HYV31.5 tons15,000 Btu/h · Non-ducted105%2.5511.025.015.0CEE 25CEE 26CEE AdvXcelDOEES CC1204825179Non-ducted, up to 1.5 tons91.593.289.993.2
5LAU120HYV3LG · LAU120HYV3with ductless indoor unit LAN120HYV31 ton12,000 Btu/h · Non-ducted100%2.9111.225.513.8CEE 25CEE 26CEE AdvXcelDOEES CC1204825178Non-ducted, up to 1.5 tons89.892.687.092.6

Best model on each rating

LG’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FARUN038GSS43.19Non-ducted, 2.5–3 tons100%8717931
Capacity retention at 5°FARUM036GSS5114%Non-ducted, 2.5–3 tons100%205967237
HSPF2LMU601HV9.5Ducted, 5 tons and up99%206717003
SEER2LMU601HV18.5Ducted, 5 tons and up99%206717003
EER2ARUM036GSS515.5Non-ducted, 2.5–3 tons100%205967237
Heating capacity at 5°FARUM036GSS548,000 Btu/hNon-ducted, 2.5–3 tons100%205967237

All 78 LG models in Explore

LG 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.
LG: 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 tons78.7(50 is the typical model of its size class)LUU090HVwith ducted air handler LHN098HV18 of 11 models qualify · AHRI 21257884664.8(50 is the typical model of its size class)LUU180HHVwith ducted air handler LVN181HV48 of 11 models have all five ratings · AHRI 205788774
Ducted, 2 tons92.9(50 is the typical model of its size class)ARUN024GSS45 of 7 models qualify · AHRI 1007056386.9(50 is the typical model of its size class)ARUN024GSS46 of 7 models have all five ratings · AHRI 10070563
Ducted, 2.5–3 tons97.0(50 is the typical model of its size class)ARUN038GSS47 of 9 models qualify · AHRI 871793297.5(50 is the typical model of its size class)ARUN038GSS48 of 9 models have all five ratings · AHRI 8717932
Ducted, 3.5–4.5 tons86.4(50 is the typical model of its size class)LMU480HHV12 of 15 models qualify · AHRI 20671700989.8(50 is the typical model of its size class)LMU480HHV15 of 15 models have all five ratings · AHRI 206717009
Ducted, 5 tons and up81.7(50 is the typical model of its size class)LMU601HV2 of 3 models qualify · AHRI 20671700378.9(50 is the typical model of its size class)LMU601HV2 of 3 models have all five ratings · AHRI 206717003
Non-ducted, up to 1.5 tons95.4(50 is the typical model of its size class)LAU090HYV3with ductless indoor unit LAN090HYV322 of 35 models qualify · AHRI 20482517795.3(50 is the typical model of its size class)LAU090HYV3with ductless indoor unit LAN090HYV331 of 35 models have all five ratings · AHRI 204825177
Non-ducted, 2 tons92.9(50 is the typical model of its size class)ARUN024GSS47 of 10 models qualify · AHRI 1007056288.3(50 is the typical model of its size class)LAU240HYV3with ductless indoor unit LAN240HYV39 of 10 models have all five ratings · AHRI 204825181
Non-ducted, 2.5–3 tons92.2(50 is the typical model of its size class)ARUN038GSS47 of 10 models qualify · AHRI 871793187.4(50 is the typical model of its size class)LMU361HHV10 of 10 models have all five ratings · AHRI 206717007
Non-ducted, 3.5–4.5 tons97.4(50 is the typical model of its size class)LMU421HHV8 of 11 models qualify · AHRI 20671700192.1(50 is the typical model of its size class)LMU421HHV11 of 11 models have all five ratings · AHRI 206717001
Non-ducted, 5 tons and up71.5(50 is the typical model of its size class)ARUB060GSS43 of 3 models qualify · AHRI 1027165961.0(50 is the typical model of its size class)LMU601HV3 of 3 models have all five ratings · AHRI 206717015

All-around board, every manufacturer

Newest LG certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified LG outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
LUU360HVLGwith ducted air handler H,GG1K936+TD3 tons35,000 Btu/h · Ducted and non-ducted1.8094%9.015.2CEE 25CEE 26XcelES CC9217037732
LUU240HVLGwith ducted air handler H,GG8J924+TD2 tons26,600 Btu/h · Ducted and non-ducted1.8091%8.014.5CEE 25CEE 26XcelES CC7217037731
LUU601HVLG · LUU601HVwith ducted air handler LVN600HV4.5 tons52,500 Btu/h · Ducted1.8073%9.216.5CEE 25CEE 26XcelES CC3213361981
LUU420HVLGwith indoor coil C74B(A,H)MX48C-C and furnace FG7TC100D-V35C3.5 tons42,000 Btu/h · Ducted and non-ducted1.8284%9.317.2CEE 25CEE 26XcelES CC4213307889
LUU180HVLGwith indoor coil C74B(A,H)MX24C-B and furnace FG7TC060D-V24B1.5 tons18,000 Btu/h · Ducted and non-ducted1.8486%9.117.5CEE 25CEE 26XcelES CC4213307887

Shares hardware with

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

No shared hardware found for LG in this group.

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Manufacturers of a similar size, side by side.

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