If you do not know how to buy air conditioning correctly, then it is worth knowing that first of all, it is important to determine whether the selected model is suitable for the room to which it will be intended. Only a specialist can do this. In order to correctly navigate in price, you need to add expenses for components and installation to the amount of the apparatus. The main characteristic of the air conditioner is the power of its cooling. The power of the installation should exceed the total value of all thermal access in the room. If repairs are planned, it is recommended to install the device to finishing work — this will save on installation.