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Mini Split BTU Sizing Map

Use the map and table below to estimate the BTU capacity needed for your room or zone.

US Climate Zone Map

Recommended BTU by Room Size & Climate Zone

Room Size (sq ft) Cool Climate  Moderate Climate  Hot Climate 
100 – 250 6,000 BTU 9,000 BTU 12,000 BTU
250 – 400 9,000 BTU 12,000 BTU 15,000 BTU
400 – 600 12,000 BTU 15,000 BTU 18,000 BTU
600 – 800 15,000 BTU 18,000 BTU 24,000 BTU
800 – 1,000 18,000 BTU 24,000 BTU 30,000 BTU

Quick BTU Calculator 

Enter your room size and select your climate to estimate the required BTU capacity.



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