3.5 kWHisense J-Series 3.5kW Split System
The 3.5kW Hisense J-Series Split (model HAWJ12KR) 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. If the space is bigger or sun-exposed, step up to the 5.3kW.
Part of the Hisense J-Series Split range, Hisense'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 3.5 kW options, see every 3.5kW split system ranked by running cost, or ask about supply and installation.
About $253 a year at the current Sydney median electricity rate: $91 of cooling plus $162 of heating, from the official GEMS test figures.
The Hisense J-Series 3.5kW uses 276 kWh per year for cooling and 488 kWh per year for heating, based on official energy label testing for Sydney's climate zone. The cooling mode carries a 3.5-star energy rating with a rated efficiency (AEER) of 3.86, while heating mode is rated at 2.5 stars with an efficiency (ACOP) of 4.24. These figures are government test data and will vary depending on your actual usage patterns and how you operate the system.
Your running costs depend on how much you run the air conditioner and your local electricity rate. The annual energy consumption figures above let you calculate what this model will cost to operate in your home.
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 Hisense J-Series Split range| Brand | Hisense |
|---|---|
| Model | HAWJ12KR |
| Series | Hisense J-Series Split |
| System type | Split System |
| Capacity | 3.5 kW |
| Refrigerant | R32 |
