3.5 kWMitsubishi Electric MSZ-EF 3.5kW Split System
The 3.5kW Mitsubishi Electric MSZ-EF Designer Split (model MSZ-EF35VG) is sized for large bedrooms and smaller living rooms. As a guide, it cools a room of up to about 25 to 29 m². That is from Mitsubishi Heavy Industries' sizing chart for an insulated room: the larger figure if it faces north, the smaller if it faces east. Western sun, poor insulation and high ceilings bring it down. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 4.2kW.
Part of the Mitsubishi Electric MSZ-EF Designer Split range, Mitsubishi Electric's split system line, in 4 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 3.5 kW options, see every 3.5kW split system ranked by running cost, or ask about supply and installation.
About $269 a year at the current Sydney median electricity rate: $97 of cooling plus $172 of heating, from the official GEMS test figures.
The Mitsubishi Electric MSZ-EF 3.5kW uses 292 kWh annually for cooling and 520 kWh for heating, based on official GEMS testing for Sydney's climate zone. These figures reflect typical household use patterns in the region and form the basis of your running cost estimate. The system achieves a rated cooling efficiency (AEER) of 3.83 and heating efficiency (ACOP) of 4.20.
For cooling, the unit carries a 3.5-star energy rating; for heating, a 2.5-star rating under the zoned labelling scheme for Sydney. These official ratings help you compare this model against other systems in the same climate zone. The R32 refrigerant used in this system supports efficient operation while meeting current environmental standards.
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 MSZ-EF Designer Split range| Brand | Mitsubishi Electric |
|---|---|
| Model | MSZ-EF35VG |
| Series | Mitsubishi Electric MSZ-EF Designer Split |
| System type | Split System |
| Capacity | 3.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
