5 kWSamsung Aero 5kW Split System
The 5kW Samsung Aero (model AR18DXFZCWKNSA) is sized for living rooms and master suites. As a guide, it cools a room of up to about 36 to 43 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. Like the rest of the Aero range it pairs Samsung’s Digital Inverter Boost compressor with SmartThings app control. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 6.8kW.
Part of the Samsung Aero Split System range, Samsung'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 5 kW options, see every 5kW split system ranked by running cost, or ask about supply and installation.
About $408 a year at the current Sydney median electricity rate: $137 of cooling plus $271 of heating, from the official GEMS test figures.
The Samsung Aero 5kW uses 414 kWh annually for cooling and 819 kWh annually for heating under standard Sydney climate test conditions. These figures are based on official GEMS registration data for the Sydney zone. The system carries a 3.5-star cooling efficiency rating and a 2-star heating efficiency rating for Sydney conditions.
The unit delivers a rated cooling efficiency (AEER) of 3.58 and heating efficiency (ACOP) of 3.52. Your actual energy consumption will vary depending on local weather, indoor temperatures you set, and how often you run the system. The exact running cost appears separately on this page and adjusts automatically with current Sydney electricity rates.
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 Samsung Aero Split System range| Brand | Samsung |
|---|---|
| Model | AR18DXFZCWKNSA |
| Series | Samsung Aero Split System |
| System type | Split System |
| Capacity | 5 kW |
| Refrigerant | R32 |
| EER (5.0kW, cooling) | 3.60 W/W |
| Compressor warranty | 10 yr limited (5 P&L + 5 parts) |
