Learn how to buy the right size window air conditioner for your home, and install it using mounting brackets with this DIY guide from True Value.
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Whether choosing a window air conditioner or portable air conditioner, your decision should be based upon the unit’s British Thermal Unit (BTU) rating?its cooling capacity. These units range in size, usually from 5,000-BTU models to 14,000 BTUs for normal home voltage.
First, calculate the number of BTUs needed to cool a space by multiplying the square feet of the room by 25 and then adding 1,000 for every window. Then, add 400 for each person in the home. Example: A 10 sq. Ft. room (10′ x 10′) with two windows and three people in the home would mean that 5,700 BTUs are needed.
| Area to be Cooled(sq. ft. = room’s width x length) | Capacity Needed(BTUs per hour) |
|---|---|
| 100 up to 150 sq. ft. | 5,000 |
| 150 up to 250 sq. ft. | 6,000 |
| 250 up to 300 sq. ft. | 7,000 |
| 300 up to 350 sq. ft. | 8,000 |
| 350 up to 450 sq. ft. | 10,000 |
| 450 up to 500 sq. ft. | 12,000 |
| 500 up to 700 sq. ft. | 15,000 |
| 700 up to 1,000 sq. ft. | 18,000 |
| 1,000+ sq. ft. | 25,000 |
Showing 25–43 of 43 results
Learn how to buy the right size window air conditioner for your home, and install it using mounting brackets with this DIY guide from True Value.
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