Mitsubishi Electric

Mitsubishi Electric MSZ-EF 2.5kW Split System

Model MSZ-EF25VG

The 2.5kW Mitsubishi Electric MSZ-EF Designer Split (model MSZ-EF25VG) is sized for standard bedrooms and small home offices. As a guide, it cools a room of up to about 18 to 21 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. It is the smallest capacity in the Mitsubishi Electric MSZ-EF Designer Split range. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 3.5kW.

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 2.5 kW options, see every 2.5kW split system ranked by running cost, or ask about supply and installation.

All Mitsubishi Electric MSZ-EF Designer Split sizes
Supply & install pricing
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Energy efficiencyRegistered: MUZ-EF25VGD/MSZ-EF25VGKDW
4 starsCooling ratingSydney climate zone
2.5 starsHeating ratingSydney climate zone
182 kWhCooling energy / yearabout $60 at the Sydney median rate
390 kWhHeating energy / yearabout $129 at the Sydney median rate
4.60AEERACOP 4.55
What it costs to run

About $189 a year at the current Sydney median electricity rate: $60 of cooling plus $129 of heating, from the official GEMS test figures.

The Mitsubishi Electric MSZ-EF 2.5kW uses 182 kWh annually for cooling and 390 kWh annually for heating under official GEMS testing in Sydney's climate zone. Cooling efficiency is rated 4 stars, with a rated AEER of 4.60. Heating efficiency is rated 2.5 stars, with a rated ACOP of 4.55. The system uses R32 refrigerant.

Running costs depend on your electricity rate and usage patterns. The annual energy consumption figures above represent the GEMS test cycle for Sydney conditions and will help you calculate expected costs based on current local rates.

Source: Australian GEMS registry · median of 170 Sydney residential tariffs, including GST · Refreshed monthly · Last updated October 2026

The details

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
Documentation
BrandMitsubishi Electric
ModelMSZ-EF25VG
SeriesMitsubishi Electric MSZ-EF Designer Split
System typeSplit System
Capacity2.5 kW
RefrigerantR32
Warranty5 year parts & labour