Installing a central unit in a historic house can be a huge undertaking. However, as a portable air conditioner that can be placed in any room with windows, they can. This means that you can move it around the room. A window air conditioner can be a good solution if you are looking for a small AC unit that is affordable and suitable for a single space. First, window units are not very energy efficient (have lower energy efficiency ratings), so they can be expensive to operate. Air conditioners, whether mobile or stationary, tend to consume a considerable amount of electricity. These can be used for rental homes, dormitories, storage units and more. However, the amount of electricity a portable AC unit uses can vary depending on the size of the room being cooled, the unit's energy efficiency, and how often it is used. Take into account any external factors, as they can have a significant impact on the efficiency of your AC. However, indirect evaporative coolers allow perspiration in dry air to evaporate faster. An air conditioner, on the other hand removes both heat as well as moisture from a space, cooling and dehumidifying it to a temperature that is maintained. These small wonders can be a great solution if your budget is limited and you have tried everything else. This creates negative air pressure which allows hot outside air to infiltrate the system.