In terms of technology, we can distinguish air conditioners in inverters and conventional (on / off). Inverter air conditioners operate at a variable rate depending on the prevailing conditions in the room.
When they are initially activated, they work at the maximum rate so that the room acquires the conditions (temperature and humidity) we have set. When the desirable conditions prevail, they continue to operate, but at a considerably reduced rate in order to preserve them.
Unlike inverters, conventional air conditioners either operate at a fixed rate or stop operating. For this reason they are also called on / off. During the initial operation stage, i.e. until the desired conditions prevail, the conventional ones operate at a constant rate, which is lower than the rate of the corresponding power inverter air conditioners.
Therefore, a conventional air conditioner will create the desired conditions for a longer period of time than commencement of operation, relative to an inverter of equivalent power. When the desirable conditions prevail, they cease to function until the conditions deviate quite a lot from them. When the deviation becomes noticeable, they re-operate at the original steady pace. Due to the above differentiation, inverter air conditioners achieve:
Smaller consumption compared to conventional ones Smaller noise levels due to their continuous operation at low revolutions Continuous keeping of temperature and humidity at levels closer to the desired
In conclusion, conventional air conditioners are a cheaper solution when purchasing them, but they can be much more expensive to operate.