Air-Conditioning Units Come in Sizes of Whole and Half Tons

Short Answer

Air-conditioning units come in sizes of whole and half tons. A 1-ton air-conditioning unit will cool a typical 1,100 sq ft house in the southern part of the United States. What size unit would be needed to cool a 3,125 sq ft house in the southern part of the United States? (Round up to the next higher whole or half ton.)