12.5 kWLG 12.5kW Ducted System
The 12.5 kW size of the LG Ducted, typically zoned across roughly 81 to 100 square metres of conditioned area depending on layout and insulation. Runs on single phase power. We confirm duct design and sizing from your floor plan before quoting.
Part of the LG Ducted range, LG's ducted system line, in 9 sizes. Running costs below use the Sydney median rate; the Eastern Suburbs and Western Sydney pages cost systems on their own network tariffs. Check the size against your rooms, compare it with other 12.5 kW options, or ask about supply and installation.
About $1,130 a year at the current Sydney median electricity rate: $381 of cooling plus $749 of heating, from the official GEMS test figures.
The LG 12.5kW ducted system uses 1149 kWh annually for cooling and 2261 kWh annually for heating, based on official GEMS testing in Sydney's climate zone. These figures form the basis of your running cost estimate, which is calculated using current Sydney electricity rates.
The system carries a 2.5-star energy rating for cooling and a 2-star rating for heating under the zoned energy label for Sydney. It achieves a rated cooling efficiency of 3.68 AEER and heating efficiency of 3.90 ACOP, and operates on R32 refrigerant.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs, including GST · Refreshed monthly · Last updated October 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the LG Ducted range| Brand | LG |
|---|---|
| Model | UU125WR3 |
| Series | LG Ducted |
| System type | Ducted System |
| Capacity | 12.5 kW |
Other 12.5kW options
All ducted systems
Samsung S2 Ducted 12.5kW
Model AC120TNHPKG / AC120TXAPKG. Whole home, SmartThings
Fujitsu Mid Static Slimline Ducted 12.5kW
Model ARTH45KMTAP. Whole home, Single & three phase
Toshiba Super Digital Inverter 12.5kW
Model RAV-GM1401DTP-A / RAV-GP1401ATP-A. High static, Top efficiency tier