There are 2 fundamental sorts of central air, which means the cold air is blown through your home from a central cooling unit, typically found outside of your home. There are options with central air systems including standard systems, also called forced air and high speed air cooling systems http://www.planoair.com/ac-repair-heating-repair-mckinney-tx.html . There is some difference in price between these 2 systems, however, both are designed to efficiently maintain a reasonable temperature level in your home. These systems work on thermostats, just like the furnace does in the winter. Air conditioning systems of this kind might be coupled with humidity control systems that work to adjust the amount of moisture in the air throughout the hot summer months.
In dry environments, additional humidity might be added to the cooled air and in damp environments, dehumidifiers are made use of in conjunction with cooling systems to guarantee a comfortable room temperature level and humidity level. Although either forced air or high speed air cooling systems are the most costly to install and maintain, they likewise add the most value to your home or house.
An additional choice for cooling your home is to use window units. These are small, semi-portable systems that are installed in the bottom section of a window and draw air through the system, cooling the temperature level and blowing it into the room. The condensation is drained outside from the back of the unit as is the heat vented out of the room. These small window cooling units are effective for small rooms, and typically are not powerful enough to maintain a steady temperature level in a bigger room or throughout more than one room.
For older houses that presently dont have the ductwork and space needed to install a conventional or whole house air conditioner, these window units might be all that is needed. Because they are not a permanent fixture in your home, they may or may not be included in the sale, nevertheless, they dont add any value to your home.