Recommended window air conditioner sizing chart

There are also other factors besides the square footage that need to taken into consideration when selecting the correct size air conditioner.  

• How much direct sunlight does the AC or the room receive?
• How many windows does the room have?
• How many people are typically in the room?
• Does the room also contain large appliances such as refrigerators or in use stoves?
• Are the ceilings higher than the standard 8 to 10 foot tall?

If any of these addition factors apply you may want to consider going up to the next size window air conditioner based on the chart.   

* Higher capacity air conditioners require 230 volts and do not use the standard 120 volt plugs found in homes.