LG 6.3 kW split system
$2,400–$3,600
estimated installed price
Cooling
6.3 kW
3.5 stars
Heating
7.3 kW
2 stars
Indoor noise
62.5
dB(A) sound power, quieter than 25% of its size
Running cost
$547
a year, average zone, at 33c/kWh
Short answer
The LG 6.3 kW split system (WS24TWU / WS24TWN) is a 6.3 kW reverse cycle wall split rated 3.5 stars for cooling and 2 stars for heating in the average climate zone. Installed, expect $2,400 to $3,600; the label's figures put running costs near $547 a year in an average-zone home.
Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.
Compare 3 quotes for my houseFull specifications
- Brand
- LG
- Model numbers
- WS24TWU / WS24TWN
- Type
- Wall split, reverse cycle (heats and cools)
- Cooling capacity
- 6.3 kW
- Cooling power input
- 1.92 kW
- Heating capacity
- 7.3 kW
- Heating power input
- 2.235 kW
- Annual efficiency, cooling (AEER)
- 3.27
- Annual efficiency, heating (ACOP)
- 3.26
- Indoor sound power
- 62.5 dB(A)
- Outdoor sound power
- 63.3 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- Thailand
- Energy Rating registration
- AAC8342
- Registration valid until
- 2029-07-09
Star ratings and running cost by climate
The Zoned Energy Rating Label rates each unit for three climates. Annual energy is the label's estimate for typical use in that zone; the cost applies 33c/kWh, around the 2026–27 default electricity offer. Use the running cost calculator for your own hours and tariff.
| Climate zone | Cooling stars | Heating stars | Energy a year | Cost a year |
|---|---|---|---|---|
| HotBrisbane, Darwin | 3.5 stars | 2.5 stars | 1,741 kWh 1590 cooling, 151 heating | $575 |
| AverageSydney, Adelaide, Perth | 3.5 stars | 2 stars | 1,655 kWh 529 cooling, 1126 heating | $547 |
| ColdCanberra, Hobart, Melbourne | 3.5 stars | 1.5 stars | 3,494 kWh 331 cooling, 3163 heating | $1,153 |
How it compares with other 6.0 kW units
- Cooling stars (average zone): 3.5 against a median of 3.5 across 121 6.0 kW wall split units, better than 29% of them.
- Indoor sound power: 62.5 dB(A) against a median of 60.3 dB(A), quieter than 25%.
- Estimated installed price for this size: $2,400 to $3,600. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Alternatives at 6.0 kW from other brands
ActronAir Serene 6 kW split system
WRC-060DS / WRE-060DS
4.5 stars cooling · 61.9 dB(A)
Midea EOS 6 kW split system
MFEP60VB-W/MFEP60VB-N
4.5 stars cooling · 61.9 dB(A)
Midea Athena 6 kW split system
MFEZ60VA-W/MFEZ60VA-N
4.5 stars cooling · 62.8 dB(A)
Rinnai PX Series 6 kW split system
HONRPX60/HINRPX60M
4.5 stars cooling · 62.8 dB(A)
Daikin Alira X 6 kW split system
RXM60WVMA / FTXM60WVMA
4.5 stars cooling · 64 dB(A)
Daikin Alira X 6 kW split system
RXM60W2VMA / FTXM60W2VMA
4.5 stars cooling · 64 dB(A)
FAQ
LG WS24TWU / WS24TWN: common questions
How much does the LG 6.3 kW split system cost installed?
Typically $2,400 to $3,600 supplied and installed in 2026 for a standard job at this size. Longer pipe runs, a new circuit, a second storey or removing an old unit add to it. Get up to three local quotes for your actual install.
How much does the LG 6.3 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $575 a year in a hot zone, $547 in an average zone and $1,153 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the LG WS24TWU / WS24TWN made?
The Energy Rating register lists the country of manufacture as Thailand.
Is the LG 6.3 kW split system quiet?
Its registered indoor sound power is 62.5 dB(A), against a median of 60.3 dB(A) for 6.0 kW wall split units, so it's quieter than about 25% of them. Brochures quote a lower sound pressure figure on the lowest fan speed; the register measures every model the same way.
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