|Properly Sized Room Air Conditioners|
|Many people buy an air conditioner that is too large, thinking it will provider better cooling. However, an oversized air conditioner is actually less effective - and wastes energy at the same time. Air conditioners remove both heat and humidity from the air. If the unit is too large, it will cool the room quickly, but only remove some of the humidity. This leaves the room with a damp, clammy feeling. A properly sized unit will remove humidity effectively as it cools.|
To figure out which size unit is best for your cooling needs:1. Determine the square footage of the area to be cooled using the following formulas:
Most rooms can be further divided into these basic shapes to determine the square footage.
If the shape of your room is other than square or rectangular, ask your sales associate to help you determine the square footage.
2. Using the square footage and the chart below, determine the correct cooling capacity. Cooling capacity is measured in British thermal units (BTUs) per hour.
Area To Be Cooled (square feet)
Capacity Needed (BTUs per hour)
100 to 150
150 to 250
250 to 300
300 to 350
350 to 400
400 to 450
450 to 550
550 to 700
700 to 1,000
1,000 to 1,200
1,200 to 1,400
1,400 to 1,500
1,500 to 2,000
2,000 to 2,500
3. Make any adjustments for the following circumstances: