12.5 kWDaikin Inverter Ducted 12.5kW Ducted System
The 12.5kW Daikin 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 upper half of the Daikin Inverter Ducted range. For more bedrooms or a larger floor plan, the 14kW is the next step up.
The Daikin Inverter Ducted 12.5kW carries a 2-star cooling rating and 1.5-star heating rating on the zoned energy label for Sydney's climate zone. Its rated AEER is 3.13 and ACOP is 3.70. Based on official government test data for Sydney, the system's registered annual energy use is 1316 kWh for cooling and 2500 kWh for heating.
Using the median Sydney residential electricity rate of 34.7 cents per kWh as of June 2026, that works out to approximately $457 per year for cooling, $868 for heating, and around $1325 combined. Actual costs will vary with usage habits, home size and thermostat settings.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the Daikin Inverter Ducted range| Brand | Daikin |
|---|---|
| Model | FDYAN125AV1 / RZA125C2V1 / RZA125C2Y1 |
| Series | Daikin Inverter Ducted |
| System type | Ducted System |
| Capacity | 12.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
Daikin Inverter Ducted 12.5kW: your questions
How much does a 12.5kW ducted system cost installed?
Installed cost for a ducted system depends on the number of zones, duct runs and outlets, roof space access, whether the outdoor unit needs single or three phase power, and any switchboard work. That is why we quote each home individually rather than publishing a flat rate. Call or email with your floor plan or photos and we give you a fixed quote, usually the same day.
What size home does a 12.5kW ducted system suit?
As a guide, 12.5kW of cooling covers roughly 81 to 100 square metres of conditioned area, typically run as zones so you are not cooling the whole home at once. Ceiling height, insulation and glass move that band, so we confirm sizing from your floor plan before anything is ordered. Our capacity calculator gives you a quick starting point.
Other 12.5kW options
All ducted systems
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Model AC120TNHPKG / AC120TXAPKG. Whole home, SmartThings
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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