18 kWDaikin Premium Inverter Ducted 18kW Ducted System
The 18kW Daikin Premium Inverter Ducted is sized for large two-storey family homes. As a guide it covers roughly 120 to 144m² of conditioned floor area, depending on zoning, insulation and ceiling height. It sits in the upper half of the Daikin Premium Inverter Ducted range. For more bedrooms or a larger floor plan, the 20kW is the next step up.
The Daikin Premium Inverter Ducted 18kW uses 1598 kWh annually for cooling and 2555 kWh annually for heating under official GEMS test conditions for Sydney's climate zone. These figures represent the energy consumption you can expect based on standardised testing. The system carries a 2.5-star energy rating for both cooling and heating under the zoned labelling scheme for Sydney, indicating its efficiency relative to other systems in its class.
The Daikin Premium Inverter achieves a rated cooling efficiency (AEER) of 3.43 and heating efficiency (ACOP) of 3.99. Your actual running costs will depend on how often you use the system, your usage patterns, and the current electricity rate in Sydney. The official energy consumption figures allow you to calculate expected costs based on your local tariff.
Source: Australian GEMS registry · median of 150 Sydney residential tariffs · Refreshed monthly · Last updated July 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 | FDYA180AV1 / RZAS180DY1 |
| Series | Daikin Premium Inverter Ducted |
| System type | Ducted System |
| Capacity | 18 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
