3.5 kWFujitsu Lifestyle 3.5kW Split System
The 3.5kW Fujitsu Lifestyle Split (model ASTG12KMTC) is sized for large bedrooms and smaller living rooms. As a guide, it cools a room of up to about 25 to 29 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 sits in the lower half of the Fujitsu Lifestyle Split range. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 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 3.5 kW options, see every 3.5kW split system ranked by running cost, or ask about supply and installation.
About $218 a year at the current Sydney median electricity rate: $79 of cooling plus $139 of heating, from the official GEMS test figures.
The Fujitsu Lifestyle 3.5kW uses 237 kWh annually for cooling and 419 kWh for heating under official Sydney climate testing. These figures are based on typical household use patterns registered with the government energy rating scheme for Sydney's zone. The system carries a 4.5-star cooling efficiency rating and 3-star heating rating under the same conditions, reflecting its performance in a Sydney climate.
The unit's rated cooling efficiency (AEER) is 3.92 and heating efficiency (ACOP) is 4.67. These metrics indicate how much cooling or heating output you receive per kilowatt of energy consumed. Combined with the official annual energy consumption figures, they establish the basis for calculating your running costs under typical Sydney usage patterns.
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 | ASTG12KMTC |
| Series | Fujitsu Lifestyle Split |
| System type | Split System |
| Capacity | 3.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
