2.5 kWMHI Avanti 2.5kW Split System
The 2.5kW MHI Avanti Split (model SRK25ZSA-W) 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. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 3.5kW.
Part of the MHI Avanti WF1 Split range, Mitsubishi Heavy Industries'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.
About $178 a year at the current Sydney median electricity rate: $58 of cooling plus $120 of heating, from the official GEMS test figures.
The MHI Avanti 2.5kW uses 176 kWh per year for cooling and 361 kWh per year for heating under official GEMS test conditions for Sydney's climate zone. These figures reflect typical annual energy consumption in Sydney conditions and form the basis for your running cost estimate shown separately on this page.
The system holds a 4-star energy rating for cooling and 3-star for heating under the zoned labelling scheme. Its rated cooling and heating efficiencies (AEER 4.78 and ACOP 4.83 respectively) indicate how much cooling or heating output you get per unit of electricity consumed. The unit uses 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 MHI Avanti WF1 Split range| Brand | Mitsubishi Heavy Industries |
|---|---|
| Model | DXK09ZSA-WF1 |
| Series | MHI Avanti WF1 Split |
| System type | Split System |
| Capacity | 2.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
