18 kWMitsubishi Electric Large Capacity Ducted 18kW Ducted System
The 18kW Mitsubishi Electric Large Capacity Ducted (model PEA-M180LAA) 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 is the smallest capacity in the Mitsubishi Electric Large Capacity Ducted range. For more bedrooms or a larger floor plan, the 20kW is the next step up.
Part of the Mitsubishi Electric Large Capacity Ducted range, Mitsubishi Electric's ducted system line, in 3 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 18 kW options, or ask about supply and installation.
About $1,467 a year at the current Sydney median electricity rate: $579 of cooling plus $888 of heating, from the official GEMS test figures.
The Mitsubishi Electric Large Capacity Ducted 18kW uses 1749 kWh annually for cooling and 2679 kWh annually for heating, according to official government test data for Sydney's climate zone. These figures are based on standardised test conditions and will vary depending on your actual usage, settings and home characteristics.
The system holds a 2.5-star energy rating for both cooling and heating under the Sydney climate zone label. It achieves a rated cooling efficiency (AEER) of 3.20 and heating efficiency (ACOP) of 3.84. The unit 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 Mitsubishi Electric Large Capacity Ducted range| Brand | Mitsubishi Electric |
|---|---|
| Model | PEA-M180LAA |
| Series | Mitsubishi Electric Large Capacity Ducted |
| System type | Ducted System |
| Capacity | 18 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
