Choosing the right air conditioner for your space can be a challenge given the wide range of options on the market. Here are the most important factors to consider when selecting an AC unit:

Room Size

The first and probably most important factor when choosing an air conditioner is the size of the room where you plan to install the unit. If you choose an AC that is too small for the room it needs to cool, you will barely notice a difference in temperature.

On the other hand, if the unit is too powerful, it will consume a lot of energy because the system will constantly turn on and off trying to regulate the temperature. Besides higher costs, an oversized AC can result in an overly cold room and inadequate dehumidification.

Power Calculation Rule

Divide the room area by ten. For example, if the room is 35 m², you should choose a unit with a capacity of 3.5 kW. If you live in a coastal area, it is recommended to choose a unit with slightly higher cooling capacity than usual. The same rule applies if the space is poorly insulated or if a larger number of people will be occupying it.

Energy Efficiency

When purchasing an air conditioner, pay attention to the energy efficiency rating as this factor significantly affects electricity consumption. These ratings range from A to G, with class A appliances consuming the least energy and being the most energy efficient.

Installation Types and Positions

For fixed installations, you can choose between mono split (one outdoor and one indoor unit) and multi split (one outdoor and two or more indoor units) — most technicians usually recommend the former, as they are simpler to install, repair, and relocate.

When it comes to the most common wall-mounted mono split fixed air conditioners, it is recommended to position the indoor unit so that it blows along the longer side of the room, as this allows air to circulate throughout the entire room for better performance.

If possible, for even better performance, install the unit parallel to a glass wall, balcony, or window. And try to place the outdoor unit two to five meters away from the indoor unit, in a shaded and well-ventilated location.

Proper Placement

Since cold air sinks downward, the air conditioner should be installed at a minimum height of two meters. To ensure proper airflow around the unit, it is recommended to maintain at least 15 centimeters of free space around the device.

Need Help Choosing?

Our team of experts will help you choose the ideal air conditioner for your space. Contact us at klima@klima-stefancic.hr or call 097 67 90 769.

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