LG Art Cool Deluxe 9,000 BTU

Last updated: October 22, 2026

LG Art Cool Deluxe 9,000 BTU
4.8/5#3 of 27 in 9,000 BTU mini-splits
4.8

Heats down to −31 °F, the lowest limit here, and makes more than its rated heat at 5 °F. A strong pick for a very cold climate.

  • 9,000 BTUSize
  • 12,000 Btu/hHeat at 5 °F
  • 109%Kept at 5 °F
  • 13.5 / 27HSPF2 / SEER2
  • Pro installInstall
See it at LG

No store we check sells it online; the maker lists where to buy or who installs it.

Pros
  • Makes 12,000 Btu/h at 5 °F, more than its rated 11,000 Btu/h
  • Keeps heating down to −31 °F
  • Among the most efficient here: HSPF2 13.5, SEER2 27
  • 10-year parts and compressor warranty once registered
Cons
  • Needs a licensed HVAC installer: a self-install voids the warranty

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Specifications

Capacity (certified)
Size (nominal)9,000 BTU
Cooling at 95 °F9,000 Btu/h
Heating at 47 °F11,000 Btu/h
Heating at 17 °F (max)13,730 Btu/h
Heating at 5 °F (max)12,000 Btu/h
Heat kept at 5 °F109%
Efficiency (certified)
HSPF2 (Region IV)13.5
SEER227
EER215.8
COP at 5 °F2.04
ENERGY STARENERGY STAR Cold Climate
AHRI certificate216368959
Operating range
Heats down to-31 °F
Cooling range14 to 118 °F
Installation
Installed byProfessional (sold through installers)
Line set connectionFlare fittings (vacuum pump needed)
Line setup to 65.6 ft
Voltage230 V
RefrigerantR-32
Indoor unitKNSAL091A
Outdoor unitKUSAL091A
Build
Indoor noise21–42 dB(A)
Outdoor noise48 dB(A)
Wi-FiBuilt in
Weightindoor 24.3 lb / outdoor 99.2 lb
Warranty10 yr compressor, 10 yr parts
Warranty with DIY installNo, a licensed installer is required

Alternatives in this size

Compare

Compare the LG Art Cool Deluxe 9,000 BTU with any other mini-split →

More from LG: every LG product ranked.