2.5 kWMHI Avanti Plus 2.5kW Split System
The 2.5kW MHI Avanti Plus Split (model SRK25ZSXA-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. It is the smallest capacity in the MHI Avanti Plus Split range. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 3.5kW.
Part of the MHI AvantiPlus WF Split range, Mitsubishi Heavy Industries's split system 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 2.5 kW options, see every 2.5kW split system ranked by running cost, or ask about supply and installation.
About $161 a year at the current Sydney median electricity rate: $55 of cooling plus $106 of heating, from the official GEMS test figures.
The MHI Avanti Plus 2.5kW uses 166 kWh per year for cooling and 320 kWh per year for heating under official government testing for Sydney's climate zone. These figures reflect typical annual operation and form the basis for running cost estimates. The system achieves a 4.5-star cooling efficiency rating and 4-star heating rating on the zoned label for Sydney.
The MHI Avanti Plus 2.5kW is rated at 5.54 AEER for cooling and 5.32 ACOP for heating, meaning it delivers substantially more heating or cooling energy than the electrical energy it consumes. The unit uses R32 refrigerant and is designed to minimise energy waste during operation across Sydney's climate conditions.
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 AvantiPlus WF Split range| Brand | Mitsubishi Heavy Industries |
|---|---|
| Model | SRK25ZSXA-WF |
| Series | MHI AvantiPlus WF Split |
| System type | Split System |
| Capacity | 2.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
