The key factors to consider when selecting a central air conditioner are efficiency, functionality and sizing.
Efficiency is the simplest that will put lots on. All ac units have a Seasonal Energy Efficiency Ratio (SEER). The higher the SEER, greater energy-efficient the AC unit. The complete savings you will see using a higher SEER depend on your usage and the weather the place you live.
The functionality on the central air system is basically controlled on your thermostat. If you want a system that integrates with all your smartphone or virtual voice assistant, locate a smart thermostat. You could should also consider features just like motion sensors or remote temperature sensors. These give your HVAC system to examine the home as the complete unit, as opposed to just the area where the thermostat is located.
Sizing is important in selecting the right air conditioning, but it is also probably the most complicated to discuss. An air conditioning that's too small for your home will run constantly, while one that's too big will cool the house too fast and turn off before it completes a complete cycle. This “short cycle” doesn't perform a chance to remove the humidity with the air. That inefficiency besides makes the house feel warmer, but it is more expensive to run. (For a deeper ought to see this dip in efficiency, look at this fact sheet from Energy Star.)
A perfectly-sized air conditioning will cool the house to the required temperature, then turn off until it's needed again. That complete cycle is vital to lowering your efforts bills.
Unfortunately, sizing is complicated. A pro will perform what's known as calculation to look for the proper AC size in your home. This calculation considers the area where you live, your home's size, the AC SEER rating, variety of insulation, amount of doors and windows and sun exposure.
You are able to ballpark how big AC you would like with all the size of your house, yet it is essential to factor from my climate. The best option would be to consult a HVAC installer near you.