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 $985 a year at the current Sydney median electricity rate: $332 of cooling plus $653 of heating, from the official GEMS test figures.
Based on GEMS testing in Sydney's climate zone, the LG 12.5kW uses 1149 kWh annually for cooling and 2261 kWh for heating. These official figures let you calculate running costs using your current electricity rate. The system rates 2.5 stars for cooling efficiency and 2 stars for heating efficiency under Sydney conditions.
The LG 12.5kW achieves a cooling efficiency rating of 3.68 AEER and heating efficiency of 3.90 ACOP. It uses R32 refrigerant. Your actual energy consumption will vary based on how often you run the system, your thermostat settings and seasonal conditions in your location.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated September 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