Cassette air conditioners are widespread and are used for air conditioning of offices, shops, and hotels. They are often preferred in new buildings because of their high energy efficiency and good price.

What is an inverter split system?

The name of the air conditioning split systems derives from the word split. In air conditioners with a split system, the system itself is divided into two modules - internal and external body. Cassette air conditioners are ceiling air conditioners and are one of the main types of inverter split systems.

How do cassette air conditioners work?

Cassette air conditioners work like other wall-mounted split system units. The difference is that the cassette systems are mounted on the ceiling, not on the wall. The inner unit itself is on the ceiling and distributes the conditioned air through two, three, or four sides of the device. The external device is mounted on the outside, in the same way as a conventional wall-mounted system unit.

Where to install cassette air conditioners?

Cassette air conditioners are not intrusive and are available in different sizes and capacities. This gives you the freedom to choose a model according to your requirements and budget. Cassette air conditioners are more suitable for use in larger areas. Since they take up quite a lot of ceiling space - and since the ceiling usually consists of beams, you will need to consult an expert to find out exactly where it is appropriate to install.

Most often, experts recommend that cassette air conditioners should be installed in a place which allows for a balanced airflow.

The guidelines for installing the external unit for air conditioning type cassette are the same as those for any other type of air conditioning split system. External units must be installed in stable places where there will be no conditions for creating vibrations. They must have sufficient free space on both sides to allow the airflow to pass smoothly. They must also be readily available for maintenance and not exposed to corrosive substances. The noise emitted by the external body must also be taken into account.

How they are stacking up compared to other air conditioning systems?

The performance of cassette air conditioners can be compared to any other types of systems. They are most often installed in retail outlets or offices and are more powerful than systems mounted on walls. They are particularly suitable for circumstances where split systems hanging on walls or other types of systems are not an option. In most cases, cassette air conditioners are more expensive than other air conditioning systems.

When choosing a cassette air conditioner you will come across a large selection on the market. Cassette air conditioners are one of the best because they can be installed in various rooms such as apartments and offices. Installation is most often on the ceiling and makes them especially suitable if you have a suspended ceiling, as there is enough space for installation. However, to be sure of your choice, you need to be aware of the pros and cons of these systems before purchasing one.

The advantages of cassette air conditioners

Given the fact that the cold air falls and the hot air rises in the room, one of the main advantages of the cassette air conditioners is that they ensure a good distribution of air in the room. This is due to powerful fans, which have the ability to regulate the proper distribution of air in larger spaces compared to ordinary air conditioners.

Another advantage of cassette air conditioning systems is that installing them on the ceiling saves a significant amount of space and even makes them almost invisible.

Usually, the second unit of the cassette air conditioners is located outside. This makes their work silent for employees in an office or residents of a building.

The thermostat of these air conditioning systems can be programmed at your request. The same goes for fan speed. You can adjust the room temperature and thus save on monthly electricity bills.

Cassette air conditioning systems are very energy efficient.

Disadvantages of cassette air conditioners

As the cassette air conditioners are mounted on the ceiling, their compressors are located outside. In large buildings, the distance between the air conditioning block and the compressor can be a lot, which means that many holes must be drilled in the walls during installation. This can be expensive and take a long time to install.

If you need a climate system for storage facilities or large offices, you may need several of them, and this can become costly. If you can't afford it, you will have to get another type of air conditioner that is not so energy efficient.

If the building where you live or work has multiple storeys, it is not certain that you will have enough space to install cassette air conditioning on the ceiling.

Our advice to you is that you seek professional opinions and help of an expert, who can take into account important parameters for the installation.

Let's summarize the advantages and disadvantages of cassette air conditioners


  • Low profile and unobtrusive;
  • Ability to distribute air throughout the room;
  • Great cooling options.


  • Limited installation options;
  • Installation may become more expensive;
  • They are not suitable for smaller spaces.

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