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 $1,279 a year at the current Sydney median electricity rate: $505 of cooling plus $774 of heating, from the official GEMS test figures.
This Mitsubishi Electric Large Capacity Ducted 18kW system uses 1749 kWh annually for cooling and 2679 kWh for heating under official GEMS testing in Sydney's climate zone. Both cooling and heating functions carry a 2.5-star energy rating for the same zone. The system achieves a rated cooling efficiency of 3.20 AEER and heating efficiency of 3.84 ACOP.
Your actual running costs will depend on your usage patterns and current Sydney electricity rates. The kWh figures above represent government-tested annual consumption under standard conditions and provide a reliable basis for comparing this system's efficiency against other models rated in the same Sydney climate zone.
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 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 |
