How To Determine Ac Unit Size. Ad Stay Cool and Comfortable with Air Conditioners at Best Buy. This estimate is most accurate in new construction or newer.

Ensure your new air conditioner is sized right for the intended application by using our fast and free online load calculator. Enter the approximate square feet of the area in your home that you need to heatcool. While your air conditioners size is determined by your homes cooling needsand is therefore fixedits SEER rating is where you can compare between different systems and make important decisions for your home.
Size of the house.
As I have already mentioned there are many different factors that a pro will take into account when calculating your ideal air conditioner size. Calculating the size air conditioner needed for a room is fairly simple. If you cant read the model number due to wear on the plate there are several other options. Regulate The Temperature Air Quality Of Your Home.
