What size air conditioner do I need for a 3500 square foot house?
Many homes especially in warm climates have more than one central air conditioner. For example, consider a 3500 square foot home in Zone 2 with a Very Sunny rating. It would need between approx. 76,000 and 104,000 BTUs of cooling!
How many square feet will a 4 ton AC unit cover?
ZONE 1 ZONE 4
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3 Tons 1501 - 1800 sf 1601 - 2000 sf
3.5 Tons 1801 - 2100 sf 2001 - 2250 sf
4 Tons 2101 - 2400 sf 2251 - 2700 sf
5 Tons 2401 - 3000 sf 2751 - 3300 sf