Next, click on the range below that corresponds to your room area. The Btu/Hr figures given below represent the estimated optimum for your room space. These cooling capacities are based on rooms with average insulation, number of windows and sun exposure, occupied routinely by two persons. To adapt the table for your specific conditions, modify the capacity figures as follows:
Area to be cooled (sq.ft.) |
Cooling Capacity (Btu/Hr) |
100-250 | 5,000-6,000 |
250-400 | 6,000-8,500 |
400-550 | 8,500-11,000 |
550-875 | 11,000-15,000 |
875-1,200 | 15,000-19,000 |
1,200-1,600 | 19,000-24,000 |
1,600-1,800 | 24,000-27,000 |
1,800-2,800 | 27,000-33,000 |