4.2 kWMitsubishi Electric MFZ-KW 4.2kW Floor Console
The 4.2 kW step in the floor console range, covering up to about 30 to 36 square metres. 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. Useful when a 3.5 kW unit would run flat out in afternoon sun.
Part of the Mitsubishi Electric MFZ-KW Floor Console range, Mitsubishi Electric's floor console line, in 5 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 4.2 kW options, or ask about supply and installation.
About $366 a year at the current Sydney median electricity rate: $131 of cooling plus $235 of heating, from the official GEMS test figures.
The Mitsubishi Electric MFZ-KW 4.2kW uses 395 kWh annually for cooling and 709 kWh annually for heating under official GEMS test conditions for Sydney's climate zone. Both cooling and heating modes carry a 2.5 star energy rating. The system achieves an AEER of 3.76 for cooling and an ACOP of 3.76 for heating, indicating the amount of heating or cooling output delivered per unit of electricity consumed.
Your running cost depends on Sydney's current electricity rates applied to these annual energy figures. The GEMS data provides a reliable baseline for comparing this unit's energy consumption against other systems rated under the same Sydney climate zone standard.
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 MFZ-KW Floor Console range| Brand | Mitsubishi Electric |
|---|---|
| Model | MFZ-KW42VGK-A1 |
| Series | Mitsubishi Electric MFZ-KW Floor Console |
| System type | Floor Console |
| Capacity | 4.2 kW |
| Refrigerant | R32 |
| Outdoor units | MUFZ-KW VG2 series |
| Power | 230V single phase |
