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Sizing guides by square footage

Quick answers for the most common room and house sizes. Each guide shows the size for five U.S. climates and the best certified models. For your exact home, use the size calculator.

Mini-splits (rooms and zones)

Area	Size by climate
200 sq ft	6,000-9,000 BTU
300 sq ft	9,000 BTU
400 sq ft	12,000 BTU
500 sq ft	15,000 BTU
600 sq ft	15,000-18,000 BTU
800 sq ft	24,000 BTU
1,000 sq ft	24,000-30,000 BTU

Heat pumps (whole house)

House	Size by climate
1,000 sq ft	2-2.5 ton
1,200 sq ft	2-3 ton
1,500 sq ft	2.5-4 ton
1,800 sq ft	3-5 ton
2,000 sq ft	3-5 ton
2,500 sq ft	3.5 to 5+ ton
3,000 sq ft	4 to 5+ ton
4,000 sq ft	Infinity to 5+ ton