Line-ups
LG heat pumps
Rated products: 65 · model numbers: 84 · 7 split systems and 58 mini- or multi-splits
Of the 124 brand groups with at least 15 rated products, LG ranks first for top split-system SEER2, first for median split-system HSPF2, and fifth for median split-system share kept at 5°F. Among its products, 13 lead their size class on at least one rating, including the LG KUSXA422A , the LG KUSXA301A , and the LG KUMXA421A .
The line-up at 5°F, class by class
40% 70% 100% 130% 160% 2.5t 3t 3.5t 4t 5t 9k 12k 15k 18k 24k 27k 30k 36k 42k 48k 60k t = ton, split; k = 1,000 Btu/h, mini 40% 70% 100% 130% 160% 2.5t 3.5t 5t 12k 18k 27k 36k 48k t = ton; k = 1,000 Btu/h Each dot is one rated product: listed 5°F heating capacity as a share of listed 47°F capacity, in its best match. Black bar: median of the whole size class. Products that lead their class Product Class Leads the class on LG KUSXA422A 3.5-ton SEER2, heating capacity at 5°F, and share of 47°F capacity kept at 5°F LG KUMXA421A 42,000 Btu/h EER2
Refrigerants Refrigerants listed: R-32 (65).
Every rated product, by size class 2.5-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXA301A 100% 34,000 10.4 25
3-ton split systems 2 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXA361A 94% 36,000 10.5 23.5 LG KUSXB361A 94% 35,000 10.3 22
3.5-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXA422A 100% 46,000 9.8 19
4-ton split systems 2 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXA482A 92% 46,000 9.6 19 LG KUSXB481A 79% 40,000 10.4 21.2
5-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXB601A 82% 45,000 9.4 17.5
9,000 Btu/h mini- and multi-splits 7 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSAL091A 109% 12,000 13.5 27 LG KUSXB091A 100% 10,500 10.6 22.2 LG KUSAB091A 87% 9,500 10.9 23.8 LG KUSAD091A 86% 7,700 9.2 21 LG KUSAC091A 71% 7,700 9.2 21 LG KUSAE091A 71% 7,700 8.7 18 LG KUSAF091F 71% 7,700 8 18
12,000 Btu/h mini- and multi-splits 9 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSAL121A 113% 14,700 11.2 25.5 LG KUSXA121A 100% 15,000 9.8 17 LG KUSXB121A 88% 11,400 10.5 21.7 LG KUSAD121A 76% 8,400 9 20 LG KUSAB121A 74% 10,000 10.5 22.5 LG KUSAC121A 70% 8,400 9 20 LG KUSAE121A 70% 8,400 8.5 18 LG KUSAF121F 70% 8,400 8 18 LG KUSUB121A 70% 10,500 9.5 18
15,000 Btu/h mini- and multi-splits 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSAL151A 100% 18,000 11.2 25
18,000 Btu/h mini- and multi-splits 9 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXA181A 120% 24,000 10 20.5 LG KUSXB181A 110% 22,000 10 20.5 LG KUSAL181A 100% 21,600 11 24 LG KUMXA181A 90% 19,800 9.8 20 LG KUSUB181A 90% 18,000 9 18 LG KUMXB181A 78% 15,800 9.8 22.5 LG KUSAB181A 70% 15,200 10 23 LG KUSAC181A 70% 13,300 9.4 21 LG KUSAE181A 70% 13,300 8.9 18
24,000 Btu/h mini- and multi-splits 11 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXA241A 104% 28,000 10.5 22 LG ZRUN024GSS0 100% 27,000 10.2 20.05 LG KUMXA241A 90% 22,000 9.8 21 LG KUSAL241A 90% 21,600 10.2 23 LG KUSXB241A 89% 24,000 10.2 21 LG KUSAP241A 83% 20,000 9.7 22 LG KUSUB241A 81% 21,000 9 18 LG KUMXB241A 73% 17,300 9.8 22.5 LG KUSAF241F 70% 15,500 8 18 LG KUSAC241A 63% 13,800 8.8 20 LG KUSAE241A 63% 13,800 8.3 18
27,000 Btu/h mini- and multi-splits 2 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSUB301A 80% 24,000 9.5 18 LG KUMXA301A 77% 23,000 9.8 20
30,000 Btu/h mini- and multi-splits 2 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUSXB301A 97% 32,000 10 21 LG KUMXB301A 61% 18,400 9.5 22
36,000 Btu/h mini- and multi-splits 4 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG ZRUM036GSS0 100% 42,000 10.6 23 LG KUMXA361A 92% 41,500 11 22 LG KUSUB361A 82% 33,000 9.5 18 LG KUMXB361A 56% 19,400 9.5 21.5
42,000 Btu/h mini- and multi-splits 4 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG KUMXA421A 92% 44,000 11 21.5 LG KUSXA421A 91% 43,500 10.8 21.5 LG KUSXB421A 84% 40,000 10.8 21 LG KUSUB421A 80% 36,800 9.5 18.5
48,000 Btu/h mini- and multi-splits 6 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG ZRUM048GSS0 100% 54,000 10.3 23.3 LG KUMXA481A 91% 48,000 10.5 20.5 LG KUSXA481A 86% 44,500 10.6 20.8 LG KUSUB481A 75% 37,400 9 18.5 LG KUMXB541A 71% 41,000 9.5 20.6 LG KUMXB481A 70% 37,800 9.5 20.5
60,000 Btu/h mini- and multi-splits 3 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 LG ZRUM060GSS0 84% 54,000 10 23 LG KUMXB601A 72% 46,000 10 20.5 LG KUSUB601A 70% 38,500 9 18.5
Certified as of October 27, 2026. Brand names that sell the same rated products are grouped; see how the ratings are read .