Brand
LG mini splits
LG's ductless range is the widest-branded and least self-explanatory catalog we track: 50 systems across 16 lines, all on current-generation R-32, all professionally installed. Several of those line names describe appearance rather than capability, which is where buyers go wrong.
The performance spread is large. ARTCOOL Deluxe certifies SEER2 25.5-27 with rated heating to -31F - among the deepest cold ratings in our entire catalog - but only at 9,000 and 12,000 BTU. ARTCOOL Premier covers 15,000-22,000 BTU at SEER2 23-25 and -13F. Mega and Standard Efficiency are the volume lines at SEER2 18-21 and only +5F. Multi-zone runs Multi F (-4F) and Multi F LGRED (-13F).
Who should buy LG: someone hiring an installer who wants a major consumer brand with genuine cold-climate capability and cares about how the indoor head looks. Who should skip it: anyone shopping on price - the Mega and Standard Efficiency lines are unremarkable, and the good LG is not the cheap LG. We do not sell LG equipment; these pages carry installer-quote requests rather than buy buttons.
- Source-backed systems
- 50/5
- Last sourced
- Jul 22, 2026
Products
50
Capacity range
9k BTU to 36k BTU
Price band
$899 to $4,319
Cold-weather options
15
Overview
- Positioning
- Professional install systems
- Country
- South Korea
- Efficiency range
- SEER2 16.4 to 27 / HSPF2 8.3 to 13.5
- Warranty
- Standard 5-year parts and 7-year compressor coverage; qualified registered LG R-32 residential/light-commercial systems extend to 10 years total coverage.
- Dealer/DIY policy
- Qualified systems must be installed by licensed HVAC installers who meet LG training requirements, follow LG published instructions, and register within 60 days for extended warranty coverage.
What to know about LG
- ARTCOOL Mirror and High Efficiency certify identically - both span 9,000-18,000 BTU at SEER2 22.5-23.8 with the same -4F rating. ARTCOOL Mirror is the mirrored-finish version. Choose on looks and price; you are not buying performance with the ARTCOOL name here.
- "ARTCOOL" is a finish family, not a performance tier. ARTCOOL Deluxe (-31F) and ARTCOOL Mirror (-4F) share a name and differ by 27 degrees of rated heating. Read the second word, not the first.
- LGRED is the signal that actually matters. It is LG's cold-climate designation, and on multi-zone it is the difference between Multi F at -4F and Multi F LGRED at -13F for about a point of SEER2.
- ARTCOOL Deluxe is a specialist. SEER2 27 at -31F is exceptional, but it exists only at 9,000 and 12,000 BTU. There is no large-capacity LG with that capability - above 22,000 BTU the options are Extended Piping (-4F) or multi-zone.
- Extended Piping exists for long line-set runs - condenser far from the head, or a high-rise. If your install is geometrically awkward rather than thermally demanding, this is the line to ask your installer about.
- Whole catalog is R-32; no legacy-refrigerant exposure. 115V is available in the Mega line at small capacities.
LG sizes and capacities
Room sizes use the same 25 BTU per square foot baseline as our sizing calculator, for an average-insulation room. Run the calculator for a real answer.
- 9,000 BTU - bedroom or office to roughly 350 sq ft, and the only capacity where you can buy the -31F ARTCOOL Deluxe.
- 12,000 BTU - large bedroom or living room to roughly 475 sq ft. Top of the ARTCOOL Deluxe range.
- 15,000-18,000 BTU - open-plan space to roughly 600-700 sq ft.
- 21,200-22,000 BTU - large rooms to roughly 880 sq ft. Top of the Mega, Standard Efficiency and ARTCOOL Premier ranges.
- 22,000-33,000 BTU - whole-floor use to roughly 1,320 sq ft, Extended Piping only, at -4F. The largest LG single-zone systems are not cold-capable - a big cold room needs multi-zone LGRED or another brand.
LG multi-zone options
LG multi-zone comes in three variants and the naming carries the whole decision:
Multi F (18,000-32,800 BTU, SEER2 21.5-22.5) - rated to -4F. The efficiency leader on paper and the wrong choice for a heating job.
Multi F LGRED (18,000-28,400 BTU, SEER2 20-21) - rated to -13F. The cold-climate version; about a point of SEER2 for nine degrees.
Multi F MAX LGRED (36,000 BTU, SEER2 22) - the largest LG multi-zone, also -13F, and the only way to get both capacity and cold capability.
For two rooms, price two single-zone systems first - single-zone avoids the part-load penalty and a failure only takes out one room.
Product table
1-Way Ceiling Cassette R-32 / Professional install
LG 1-Way Ceiling Cassette 9,000 BTU R-32 208/230V (KSUFB091A)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20.2 / HSPF2 10.4
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 20264-Way Ceiling Cassette R-32 / Professional install
LG 4-Way Ceiling Cassette 9,000 BTU R-32 208/230V (KSUDB091A)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22.2 / HSPF2 10
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026
ARTCOOL Deluxe R-32 / Professional install
LG ARTCOOL Deluxe R-32 9,000 BTU (230V)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 27 / HSPF2 13.5
- Low ambient
- -31F
Data completeness: 95%Sourced Jul 2026
ARTCOOL Mirror R-32 / Professional install
LG ARTCOOL Mirror R-32 9,000 BTU (230V)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 23.8 / HSPF2 10.9
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026
High Efficiency R-32 / Professional install
LG High Efficiency R-32 9,000 BTU (230V)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 23.8 / HSPF2 10.9
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026
Mega R-32 / Professional install
LG Mega R-32 9,000 BTU (115V)
- Capacity
- 9,000BTU/h
- Voltage
- not published
- Efficiency
- SEER2 21 / HSPF2 9.2
- Low ambient
- 5F
Data completeness: 95%Sourced Jul 2026
Mega R-32 / Professional install
LG Mega R-32 9,000 BTU (230V)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21 / HSPF2 9.2
- Low ambient
- 5F
Data completeness: 95%Sourced Jul 2026Mid Static Ducted R-32 / Professional install
LG Mid Static Ducted 9,000 BTU R-32 208/230V (KSUJB091A)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 16.4 / HSPF2 10.4
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026
Standard Efficiency R-32 / Professional install
LG Standard Efficiency R-32 9,000 BTU (230V)
- Capacity
- 9,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18 / HSPF2 8.7
- Low ambient
- 5F
Data completeness: 100%Sourced Jul 2026
Mega R-32 / Professional install
LG Mega R-32 12,000 BTU (115V)
- Capacity
- 11,000BTU/h
- Voltage
- not published
- Efficiency
- SEER2 20 / HSPF2 9
- Low ambient
- 5F
Data completeness: 95%Sourced Jul 2026
Mega R-32 / Professional install
LG Mega R-32 12,000 BTU (230V)
- Capacity
- 11,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20 / HSPF2 9
- Low ambient
- 5F
Data completeness: 95%Sourced Jul 2026
Standard Efficiency R-32 / Professional install
LG Standard Efficiency R-32 12,000 BTU (230V)
- Capacity
- 11,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18 / HSPF2 8.5
- Low ambient
- 5F
Data completeness: 100%Sourced Jul 20264-Way Ceiling Cassette R-32 / Professional install
LG 4-Way Ceiling Cassette 11,100 BTU R-32 208/230V (KSUDB121A)
- Capacity
- 11,100BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21.5 / HSPF2 10.1
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 20261-Way Ceiling Cassette R-32 / Professional install
LG 1-Way Ceiling Cassette 12,000 BTU R-32 208/230V (KSUFB121A)
- Capacity
- 12,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21.7 / HSPF2 10.1
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026
ARTCOOL Deluxe R-32 / Professional install
LG ARTCOOL Deluxe R-32 12,000 BTU (230V)
- Capacity
- 12,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 25.5 / HSPF2 11.2
- Low ambient
- -31F
Data completeness: 95%Sourced Jul 2026
ARTCOOL Mirror R-32 / Professional install
LG ARTCOOL Mirror R-32 12,000 BTU (230V)
- Capacity
- 12,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22.5 / HSPF2 10.5
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026
High Efficiency R-32 / Professional install
LG High Efficiency R-32 12,000 BTU (230V)
- Capacity
- 12,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22.5 / HSPF2 10.5
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026Mid Static Ducted R-32 / Professional install
LG Mid Static Ducted 12,000 BTU R-32 208/230V (KSUJB121A)
- Capacity
- 12,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 16.4 / HSPF2 10.5
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026
ARTCOOL Premier R-32 / Professional install
LG ARTCOOL Premier R-32 15,000 BTU (230V)
- Capacity
- 15,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 25 / HSPF2 11.2
- Low ambient
- -13F
Data completeness: 95%Sourced Jul 20261-Way Ceiling Cassette R-32 / Professional install
LG 1-Way Ceiling Cassette 18,000 BTU R-32 208/230V (KSUFB181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20.5 / HSPF2 9.5
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 20261-Way Ceiling Cassette LGRED R-32 / Professional install
LG 1-Way Ceiling Cassette LGRED 18,000 BTU R-32 208/230V (KSUFA181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20 / HSPF2 9.5
- Low ambient
- -13F
Data completeness: 82%Sourced Aug 20264-Way Ceiling Cassette R-32 / Professional install
LG 4-Way Ceiling Cassette 18,000 BTU R-32 208/230V (KSUDB181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20.5 / HSPF2 9.5
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 20264-Way Ceiling Cassette LGRED R-32 / Professional install
LG 4-Way Ceiling Cassette LGRED 18,000 BTU R-32 208/230V (KSUDA181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20.5 / HSPF2 9.5
- Low ambient
- -13F
Data completeness: 82%Sourced Aug 2026
ARTCOOL Mirror R-32 / Professional install
LG ARTCOOL Mirror R-32 18,000 BTU (230V)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 23 / HSPF2 10
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026
ARTCOOL Premier R-32 / Professional install
LG ARTCOOL Premier R-32 18,000 BTU (230V)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 24 / HSPF2 11
- Low ambient
- -13F
Data completeness: 95%Sourced Jul 2026
High Efficiency R-32 / Professional install
LG High Efficiency R-32 18,000 BTU (230V)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 23 / HSPF2 10
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026
Mega R-32 / Professional install
LG Mega R-32 18,000 BTU (230V)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21 / HSPF2 9.4
- Low ambient
- 5F
Data completeness: 95%Sourced Jul 2026Mid Static Ducted R-32 / Professional install
LG Mid Static Ducted 18,000 BTU R-32 208/230V (KSUJB181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 17.5 / HSPF2 9.2
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026Mid Static Ducted LGRED R-32 / Professional install
LG Mid Static Ducted LGRED 18,000 BTU R-32 208/230V (KSUJA181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 17.5 / HSPF2 9.2
- Low ambient
- -13F
Data completeness: 82%Sourced Aug 2026
Multi F R-32 / Professional install
LG Multi F 2-Zone 18,000 BTU R-32 208/230V (KUMXB181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22.5 / HSPF2 9.8
- Low ambient
- -4F
Data completeness: 97%Sourced Jul 2026
Multi F LGRED R-32 / Professional install
LG Multi F LGRED 2-Zone 18,000 BTU R-32 208/230V (KUMXA181A)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20 / HSPF2 9.8
- Low ambient
- -13F
Data completeness: 97%Sourced Jul 2026
Standard Efficiency R-32 / Professional install
LG Standard Efficiency R-32 18,000 BTU (230V)
- Capacity
- 18,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18 / HSPF2 8.9
- Low ambient
- 5F
Data completeness: 100%Sourced Jul 2026
Mega R-32 / Professional install
LG Mega R-32 24,000 BTU (230V)
- Capacity
- 21,200BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20 / HSPF2 8.8
- Low ambient
- 5F
Data completeness: 95%Sourced Jul 2026
Standard Efficiency R-32 / Professional install
LG Standard Efficiency R-32 24,000 BTU (230V)
- Capacity
- 21,200BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18 / HSPF2 8.3
- Low ambient
- 5F
Data completeness: 100%Sourced Jul 2026
ARTCOOL Premier R-32 / Professional install
LG ARTCOOL Premier R-32 24,000 BTU (230V)
- Capacity
- 22,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 23 / HSPF2 10.2
- Low ambient
- -13F
Data completeness: 95%Sourced Jul 2026
Extended Piping R-32 / Professional install
LG Extended Piping R-32 24,000 BTU (230V)
- Capacity
- 22,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22 / HSPF2 9.7
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026Mid Static Ducted R-32 / Professional install
LG Mid Static Ducted 23,000 BTU R-32 208/230V (KSUJB241A)
- Capacity
- 23,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 17 / HSPF2 9.5
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026Mid Static Ducted LGRED R-32 / Professional install
LG Mid Static Ducted LGRED 23,000 BTU R-32 208/230V (KSUJA241A)
- Capacity
- 23,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 17 / HSPF2 9.5
- Low ambient
- -13F
Data completeness: 82%Sourced Aug 2026
Multi F R-32 / Professional install
LG Multi F 3-Zone 24,000 BTU R-32 208/230V (KUMXB241A)
- Capacity
- 24,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22.5 / HSPF2 9.8
- Low ambient
- -4F
Data completeness: 97%Sourced Jul 2026
Multi F LGRED R-32 / Professional install
LG Multi F LGRED 3-Zone 24,000 BTU R-32 208/230V (KUMXA241A)
- Capacity
- 24,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21 / HSPF2 9.8
- Low ambient
- -13F
Data completeness: 97%Sourced Jul 2026
Multi F LGRED R-32 / Professional install
LG Multi F LGRED 4-Zone 30,000 BTU R-32 208/230V (KUMXA301A)
- Capacity
- 28,400BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20 / HSPF2 9.8
- Low ambient
- -13F
Data completeness: 97%Sourced Jul 2026Mid Static Ducted R-32 / Professional install
LG Mid Static Ducted 29,000 BTU R-32 208/230V (KSUJB301A)
- Capacity
- 29,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18.5 / HSPF2 9.4
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026
Extended Piping R-32 / Professional install
LG Extended Piping R-32 30,000 BTU (230V)
- Capacity
- 30,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21 / HSPF2 8.5
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026Mid Static Ducted LGRED R-32 / Professional install
LG Mid Static Ducted LGRED 30,000 BTU R-32 208/230V (KSUJA301A)
- Capacity
- 30,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18.8 / HSPF2 9.5
- Low ambient
- -13F
Data completeness: 82%Sourced Aug 2026
Multi F R-32 / Professional install
LG Multi F 4-Zone 30,000 BTU R-32 208/230V (KUMXB301A)
- Capacity
- 30,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22 / HSPF2 9.5
- Low ambient
- -4F
Data completeness: 97%Sourced Jul 2026
Multi F R-32 / Professional install
LG Multi F 4-Zone 36,000 BTU R-32 208/230V (KUMXB361A)
- Capacity
- 32,800BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 21.5 / HSPF2 9.5
- Low ambient
- -4F
Data completeness: 97%Sourced Jul 2026
Extended Piping R-32 / Professional install
LG Extended Piping R-32 36,000 BTU (230V)
- Capacity
- 33,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 20 / HSPF2 8.5
- Low ambient
- -4F
Data completeness: 95%Sourced Jul 2026Mid Static Ducted R-32 / Professional install
LG Mid Static Ducted 36,000 BTU R-32 208/230V (KSUJB361A)
- Capacity
- 36,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 18.5 / HSPF2 9.3
- Low ambient
- -4F
Data completeness: 82%Sourced Aug 2026Mid Static Ducted LGRED R-32 / Professional install
LG Mid Static Ducted LGRED 36,000 BTU R-32 208/230V (KSUJA361A)
- Capacity
- 36,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 19 / HSPF2 9.5
- Low ambient
- -13F
Data completeness: 82%Sourced Aug 2026
Multi F MAX LGRED R-32 / Professional install
LG Multi F MAX LGRED 5-Zone 36,000 BTU R-32 208/230V (KUMXA361A)
- Capacity
- 36,000BTU/h
- Voltage
- 230V
- Efficiency
- SEER2 22 / HSPF2 11
- Low ambient
- -13F
Data completeness: 97%Sourced Jul 2026