12.5 kWDaikin Premium Inverter Ducted 12.5kW Ducted System
The 12.5kW Daikin Premium Inverter Ducted is sized for typical three-bedroom single-storey homes. As a guide it covers roughly 83 to 100m² of conditioned floor area, depending on zoning, insulation and ceiling height. It sits in the lower half of the Daikin Premium Inverter Ducted range. For more bedrooms or a larger floor plan, the 14kW is the next step up.
Part of the Daikin Premium Inverter Ducted range, Daikin's ducted system line, in 10 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 $918 a year at the current Sydney median electricity rate: $330 of cooling plus $588 of heating, from the official GEMS test figures.
The Daikin Premium Inverter Ducted 12.5kW uses 1142 kWh annually for cooling and 2036 kWh for heating under official GEMS testing in Sydney's climate zone. These figures reflect real-world energy consumption for the system operating in your local conditions. The system carries a 2.5-star energy rating for both cooling and heating modes, indicating moderate efficiency against the zoned standard.
Efficiency is measured by AEER for cooling (3.57) and ACOP for heating (3.90). The system uses R32 refrigerant. Your actual running costs depend on usage patterns, thermostat settings and current Sydney electricity rates. The official annual energy consumption figures above provide the basis for calculating operating expenses over a full year.
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 Daikin Premium Inverter Ducted range| Brand | Daikin |
|---|---|
| Model | FDYA125AV19 / RZAS125C2V1 |
| Series | Daikin Premium Inverter Ducted |
| System type | Ducted System |
| Capacity | 12.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
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