Comfort At Home: Room Air Conditioning

You can select Room Air Conditioning products by using the Sizing Guide (below) -- or you can go directly to product information.

Carrier Room Air Conditioning products are sized by cooling capacity in Btus per hour. To estimate the optimum capacity for any room, first calculate the size of the area to be air-conditioned by multiplying its width times its length, measured in feet.

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