There are many types of air conditioning systems which you can use to cool your home.
The two hottest are; central air conditioning and room air conditioning.
Central air conditioning cools all of your house by circulating air through ducts that are installed inside your home. The hot air from your home is pulled through these ducts in order to be transformed into cold air. Once the air is cold it is then pumped back down the ducts and cools your house. The duct system is based on something of supply and return. Air continues to be circulated through the system as a way to reach the desired temperature intended for your whole home. Since your home will be one solid temperature, the central air system will work at a solid pace so as to cool your home.
Room air conditioning, better referred to as window or wall air conditioners, can only cool a certain amount of space. The unit is mounted into the wall or window of a specific room. The plus size to window air conditioning is that unless it isn't a large unit it does not need its own, almost all of the air conditioners will plug right into a power outlet at home. Window air conditioners are single, self sustaining units that exhaust heat and humidity from the specific room to the outside. Much like how a car's air-con works, the single unit is only going to be able to cool a certain square footage. For example; in the event that you buy a unit in order to cool the downstairs of your home, depending on how big the space is, the whole downstairs could possibly be cooled. But in the event that you were to close doors only one area will be cool and another areas that were cooled off would be sweltering hot. Same applies to the second story of your house. Heat rises so all that heat that was once in your own home is now upstairs. Window or wall ac units do not take out any hot air from your home as a way to recirculate it and transform it into cool air. This type of air conditioning takes the heat from outside and turns it into cool air in order to be circulated into your home.
Of course there are advantages and disadvantages to each:
Central Air Conditioning
ADVANTAGES
Cools your whole house; operates with the use of one thermostat
Air quality is improved and can be controlled. The countless filters should be able to take pollutants out of the air; certain features may also be open to stop pollutants from entering your home
Central air conditioning systems are essentially very easy to operate
Does not use up any space in your house or block anything from your own view of your yard or inside your home
Central air conditioning units tend to be more efficient and will save you energy and money
Central air conditioning is very quiet
You do not have to accomplish any repairs. New installs include warranties on parts and services. All you need to do is contact a technician.
DISADVANTAGES
If you do not have your system maintained you could be breathing in harmful pollutants
To install something could take up to a few hours and can set you back thousands of dollars, depending on how big your system needs to be in order to cool your home
The outside unit can could potentially be destroyed by any serious climate. Also any overgrown trees or shrubs can negatively affect the efficiency of your system and may also cause damage
If one's body breaks or isn't working, it is your decision to repair it or replace it which can consume considerable time as well as money
Window/Wall Air Conditioning
ADVANTAGES
You may only need one unit for the whole downstairs
Window/wall air conditioners are easy to install; and can also be easily removed and stored away
Inexpensive and much more practical for those who have to watch their spending
Aircon leak
DISADVANTAGES
In the event that you shut doors to certain rooms, they will be sweltering hot. Heat also rises, so if you are heading upstairs be ready to sweat. This could also imply that you might need other units in other rooms and therefore more energy is being used to power a lot more than 1 machine and you also could see an increase in your electricity bill
Once they are installed they can not be easily relocated to another part of the house.
If they're in a window they'll block the view from outside and inside of the home
If you have multiple units in your home, it could put a hole in your pocket when the electricity bill comes; you could have to monitor the usage of each system more carefully
When choosing an air-con for your home, it is advisable to keep in mind just how much you would want to spend and how much it is possible to afford to spend. Central AIR-CON is a bigger investment than a window/wall air conditioning but remember there are more benefits to having central air than disadvantages. Although window/wall units look like a good idea they are putting a band-aid over a cut that needs to be getting stitches.
Central air conditioning may be the way to go!