2.5 kWFujitsu Lifestyle 2.5kW Split System
The 2.5kW Fujitsu Lifestyle Split (model ASTG09KMTC) 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 Fujitsu Lifestyle Split range. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 3.5kW.
Part of the Fujitsu Lifestyle Split range, Fujitsu General's split system line, in 7 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 $167 a year at the current Sydney median electricity rate: $51 of cooling plus $116 of heating, from the official GEMS test figures.
The Fujitsu Lifestyle 2.5kW uses 155 kWh annually for cooling and 351 kWh annually for heating under Sydney's climate conditions, according to official GEMS test data. These figures reflect typical usage patterns and allow you to calculate running costs based on current electricity rates. The system carries a 5-star energy rating for cooling and 3-star rating for heating in Sydney's climate zone.
The unit achieves an AEER (air conditioner energy rating) of 4.70 for cooling and an ACOP (air conditioner coefficient of performance) of 4.84 for heating. It uses R32 refrigerant. These efficiency metrics demonstrate the system's ability to deliver heating and cooling output relative to energy consumed.
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 Fujitsu Lifestyle Split range| Brand | Fujitsu General |
|---|---|
| Model | ASTG09KMTC |
| Series | Fujitsu Lifestyle Split |
| System type | Split System |
| Capacity | 2.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
Fujitsu Lifestyle 2.5kW: your questions
How much does a 2.5kW split system cost installed?
The unit is only part of the cost. Installed price depends on whether it is a straightforward back to back installation or needs longer pipe runs, wall brackets or a condenser slab, plus any electrical work at the switchboard. You get a fixed price in writing before any work starts. Photos of the wall, the outdoor spot and your switchboard help us price the job, and if it needs a look first, we book a site visit.
What size room does a 2.5kW air conditioner suit?
A 2.5kW split system cools a room of up to about 18 to 21 square metres as a guide. 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. Strong afternoon sun, high ceilings or big glass areas push you toward the next size up, and oversizing wastes money on short cycling. The capacity calculator sizes your room in under a minute, and we confirm before we quote.
How much does the Fujitsu Lifestyle 2.5kW cost to run?
Official government test figures for Sydney's climate zone put the Fujitsu Lifestyle 2.5kW at 155 kWh a year for cooling and 351 kWh for heating. The running cost figures on this page turn that into dollars at the Sydney median electricity rate, refreshed monthly. Your bill depends on your tariff and how much you run it.
Is the Fujitsu Lifestyle 2.5kW reverse cycle?
Yes. The registered model (ASTG09KMTC) heats and cools, so one system covers Sydney summers and winters. Its official heating figures for this climate zone are shown in the energy section above.
