-
Step 1
Choose the size you need. This is important because if you purchase a unit that is too small, then it will not meet your needs. If you purchase a unit that is too big, then you decrease the efficiency of your central air conditioner.
-
Step 2
Research the efficiency of the unit you want to buy. The most common way to measure the efficiency of a central air conditioner is to see what its Seasonal Energy Efficiency Ratio (SEER) is. The United States requires that an air conditioner must have a SEER of 13 to be sold. Air conditioners with a SEER between 14 and 22 are more efficient models.
-
Step 3
Pick the type of central air conditioner you want. The two main types of central air conditioners are split-system units or packaged units. A split-system central air conditioner has an indoor and outdoor cabinet. Packaged units only have one cabinet that is placed either on a roof or concrete slab next to your home.
-
Step 4
Find the unit that has all the features you need. There are several features that central air conditioners have. Other features to think about when looking for a central air conditioner are the speed of your unit, check filter light, automatic features that increase efficiency, operates quietly, and an Energy Efficiency Ratio (EER) greater than 11.6.
-
Step 5
Purchase a central air conditioner. Consider all your needs when making your purchase. Look for a unit that has all the features you want at the best price. Remember to take your time when deciding to purchase a new central air conditioner.
