AC sizing
What Size Air Conditioner Do I Need?
An oversized air conditioner can short-cycle and leave humidity behind. An undersized system may run continuously on the hottest days.
Cooling load
A load calculation considers climate, insulation, air leakage, windows, orientation, shade, and the home’s dimensions.
Tonnage is capacity
Residential systems commonly range from 1.5 to 5 tons. Bigger is not automatically better.
Confirm before buying
Use online sizing as a planning estimate, then have the selected capacity and airflow verified before installation.