Air conditioners cool the air by removing moisture and heat from the inside air. They do this by using a refrigerant to transfer the heat from the outside to the indoors. This is often done through a heat exchanger which takes the hot air outside and transfers it to the cooler indoors. Some air conditioners also use an evaporator to do this and can be found with one or more evaporator coils. Split-system air conditioners are designed for the homeowner who does not want a central air conditioner. These are generally more expensive than other types, though they also tend to be more energy efficient. Because they don’t need to…