A central air-conditioning unit is a good choice if you are trying to keep a large space cool. On the other hand, if you live in a big home, but you don't use all of the rooms, a central-system will push air into rooms that you are not even using. This means you are paying for your unit to produce more cool air than you need. If you want to cool your home more efficiently, then you can use a mini-split system to target your cooling and heating.
How a Mini-Split System Works
A central air system splits the two main components of an air conditioner. You will have a condenser unit outside of your home, and a evaporator unit located in a central position in your home. This split system makes it possible to reduce the distance between the evaporator unit and the vents it must push air out of. A mini-split system will have one condenser unit and up to four evaporator units that should be placed directly in the rooms that you want to cool.
Benefits of a Mini-Split System
The ducts in a central-air system can absorb cool air and/or allow air to leak out of the ducts through leaks. By placing evaporator units directly in the rooms you want to cool, you eliminate any losses in efficiency due to the duct system. A mini-split system will also be smaller than a central-air system, so it will not draw as much electricity from your home.
Furthermore, you can control the temperature in each room separately. Each evaporator unit will have its own thermostat, so you can shut off evaporators in rooms that you aren't using. Similarly, you can turn thermostats down on the shaded side of your house while turning up thermostats on the sunny side. Targeted cooling will keep your bills low while still keeping you comfortable.
There are many options for cooling a home, so it should come with no surprise that not every system is right for every person or for every situation. A central-air cooling system is a great option for large families in a home where multiple rooms will be used at the same time, but it you only use a room or two at a time, then you don't need to cool every room in your house. If you want to keep your cooling costs down, you can look into having a company like Perry Heating Cooling install a mini-split system in your home.