Against comparable models

Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.

Della and LG on every ratingPeer scores, 0–100 · grey ticks: every ranked manufacturer · shaded: the middle half of each one’s modelsMeasured against models of the same size and duct type, LG scores higher on 6 of the 6 ratings.

Della
LG
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 11, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Della	LG
Efficiency index	39%median — · 27th ranked	65%median — · 2nd ranked
COP at 5°F	42%median 1.80 · 25th ranked	59%median 2.06 · 7th ranked
Capacity retention at 5°F	37%median 70% · 26th ranked	64%median 80% · 5th ranked
HSPF2	23%median 8.5 · 27th ranked	70%median 9.5 · 3rd ranked
SEER2	35%median 19.0 · 27th ranked	63%median 20.2 · 6th ranked
EER2	28%median 10.0 · 27th ranked	69%median 12.5 · 1st ranked
Heating capacity at 5°F	37%median 11,600 Btu/h · 26th ranked	67%median 19,900 Btu/h · 3rd ranked
Outdoor models	22	78
AHRI certifications	22	175

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Della	LG
CEE 2025 Tier 1 (Split ASHP)	54.5%12 models	74.4%58 models
CEE 2026 Tier 1 (Split ASHP)	45.5%10 models	74.4%58 models
CEE Advanced Tier (Split ASHP)	0%0 models	9%7 models
Xcel Energy Colorado cold-climate ASHP (2025)	36.4%8 models	67.9%53 models
DOE Cold Climate Heat Pump Challenge	0%0 models	9%7 models
ENERGY STAR Cold Climate	18.2%4 models	44.9%35 models

Sizes and duct types offered

Models in each peer group, with the efficiency index of those models against the rest of the group.

Side by side, inside each size and duct typeShape: every model of the group · bars: each manufacturer’s middle half, median dot, 10th–90th line · 3 groups where both have models

Della
LG
All models of the group

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of Oct 11, 2026

Models per peer group · efficiency index within the group
Size and duct type	Della	LG
Ducted, up to 1.5 tons	None	11 · index 57%
Ducted, 2 tons	None	7 · index 71%
Ducted, 2.5–3 tons	None	9 · index 80%
Ducted, 3.5–4.5 tons	None	15 · index 79%
Ducted, 5 tons and up	None	3 · index 72%
Non-ducted, up to 1.5 tons	16 · index 43%	35 · index 54%
Non-ducted, 2 tons	3 · index 39%	10 · index 61%
Non-ducted, 2.5–3 tons	3 · index 27%	10 · index 69%
Non-ducted, 3.5–4.5 tons	None	11 · index 70%
Non-ducted, 5 tons and up	None	3 · index 55%

Cold-climate and all-around picks, size class by size class

Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.

Cold-climate picks

Best cold-climate pick per size and duct type (keeps at least 70% of its heat at 5°F). 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.
Size and duct type	DellaCold-climate score, best model	LGCold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	78.7(50 is the typical model of its size class)LUU090HVwith ducted air handler LHN098HV18 of 11 models qualify · AHRI 212578846
Ducted, 2 tons	No models in this size class	92.9(50 is the typical model of its size class)ARUN024GSS45 of 7 models qualify · AHRI 10070563
Ducted, 2.5–3 tons	No models in this size class	97.0(50 is the typical model of its size class)ARUN038GSS47 of 9 models qualify · AHRI 8717932
Ducted, 3.5–4.5 tons	No models in this size class	86.4(50 is the typical model of its size class)LMU480HHV12 of 15 models qualify · AHRI 206717009
Ducted, 5 tons and up	No models in this size class	81.7(50 is the typical model of its size class)LMU601HV2 of 3 models qualify · AHRI 206717003
Non-ducted, up to 1.5 tons	68.8(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 213927343	95.4(50 is the typical model of its size class) (higher)LAU090HYV3with ductless indoor unit LAN090HYV322 of 35 models qualify · AHRI 204825177
Non-ducted, 2 tons	None on this board (0 of 3 models qualify)	92.9(50 is the typical model of its size class)ARUN024GSS47 of 10 models qualify · AHRI 10070562
Non-ducted, 2.5–3 tons	None on this board (0 of 3 models qualify)	92.2(50 is the typical model of its size class)ARUN038GSS47 of 10 models qualify · AHRI 8717931
Non-ducted, 3.5–4.5 tons	No models in this size class	97.4(50 is the typical model of its size class)LMU421HHV8 of 11 models qualify · AHRI 206717001
Non-ducted, 5 tons and up	No models in this size class	71.5(50 is the typical model of its size class)ARUB060GSS43 of 3 models qualify · AHRI 10271659

All-around best

Best all-around model per size and duct type. 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.
Size and duct type	DellaAll-around score, best model	LGAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	64.8(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 tons	No models in this size class	86.9(50 is the typical model of its size class)ARUN024GSS46 of 7 models have all five ratings · AHRI 10070563
Ducted, 2.5–3 tons	No models in this size class	97.5(50 is the typical model of its size class)ARUN038GSS48 of 9 models have all five ratings · AHRI 8717932
Ducted, 3.5–4.5 tons	No models in this size class	89.8(50 is the typical model of its size class)LMU480HHV15 of 15 models have all five ratings · AHRI 206717009
Ducted, 5 tons and up	No models in this size class	78.9(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 tons	70.8(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	95.3(50 is the typical model of its size class) (higher)LAU090HYV3with ductless indoor unit LAN090HYV331 of 35 models have all five ratings · AHRI 204825177
Non-ducted, 2 tons	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	88.3(50 is the typical model of its size class) (higher)LAU240HYV3with ductless indoor unit LAN240HYV39 of 10 models have all five ratings · AHRI 204825181
Non-ducted, 2.5–3 tons	29.5(50 is the typical model of its size class)048-TL-36K-MODU3 of 3 models have all five ratings · AHRI 211042067	87.4(50 is the typical model of its size class) (higher)LMU361HHV10 of 10 models have all five ratings · AHRI 206717007
Non-ducted, 3.5–4.5 tons	No models in this size class	92.1(50 is the typical model of its size class)LMU421HHV11 of 11 models have all five ratings · AHRI 206717001
Non-ducted, 5 tons and up	No models in this size class	61.0(50 is the typical model of its size class)LMU601HV3 of 3 models have all five ratings · AHRI 206717015

All-around board, every manufacturer

Standout model on each rating

Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.

Top model per rating by peer percentile, with its AHRI-certified value and peer group
Rating	Della	LG
COP at 5°F	beats 89% · 2.21048-TP-18K2V-22S-OUTNon-ducted, up to 1.5 tons	beats 100% · 3.19ARUN038GSS4Non-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 64% · 77%048-TP-9K2V-23S-OUTNon-ducted, up to 1.5 tons	beats 100% · 114%ARUM036GSS5Non-ducted, 2.5–3 tons
HSPF2	beats 57% · 9.5048-TP-12K2V-23S-OUTNon-ducted, up to 1.5 tons	beats 99% · 9.5LMU601HVDucted, 5 tons and up
SEER2	beats 79% · 23.5048-TP-9K2V-23S-OUTNon-ducted, up to 1.5 tons	beats 99% · 18.5LMU601HVDucted, 5 tons and up
EER2	beats 68% · 13.0048-TP-9K2V-23S-OUTNon-ducted, up to 1.5 tons	beats 100% · 15.5ARUM036GSS5Non-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 78% · 13,000 Btu/h048-TL-18K-MODUNon-ducted, up to 1.5 tons	beats 100% · 48,000 Btu/hARUM036GSS5Non-ducted, 2.5–3 tons

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Della vs LG heat pumps