3.5 kWActronAir Serene 3.5kW Split System
The 3.5kW ActronAir Serene Split (model WRE-035DS) is sized for large bedrooms and smaller living rooms. As a guide it suits a typical insulated room of roughly 23 to 28m²; sun exposure and ceiling height move that band. If the space is bigger or sun-exposed, step up to the 5kW.
Part of the ActronAir Serene Split range, ActronAir's split system line, in 6 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, or ask about supply and installation.
About $179 a year at the current Sydney median electricity rate: $56 of cooling plus $123 of heating, from the official GEMS test figures.
The ActronAir Serene 3.5kW uses 195 kWh annually for cooling and 424 kWh for heating, based on official GEMS testing for Sydney's climate zone. These figures represent your actual energy consumption under standard conditions. The system achieves a 6-star cooling efficiency rating and 3.5-star heating rating in the Sydney zone. Running costs depend on your local electricity rate and how often you use heating versus cooling.
Efficiency is measured by the AEER cooling rating of 4.65 and ACOP heating rating of 4.57. The system uses R32 refrigerant. To calculate your running costs, multiply the annual kWh figures by your current Sydney electricity rate, which updates on this page.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated September 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the ActronAir Serene Split range| Brand | ActronAir |
|---|---|
| Model | WRE-035DS |
| Series | ActronAir Serene Split |
| System type | Split System |
| Capacity | 3.5 kW |
| Refrigerant | R32 |
| Controller | WRC series |
