What does the btu rate of an air conditoner mean?
BTU stands for British Thermal Unit and is the internationally agreed upon standard for measuring heat. The room size that correlates with each BTU size air conditioner is stated with each product listing. It is important when choosing an air conditioner, to keep in mind that this is the recommended room size under average conditions. Warmer climates, houses with less insulation, cinderblock construction, kitchens, and vaulted ceilings all increase the needed BTUs. If you are shopping for an air conditioner, here is a chart that will come in handy when you need to pick a size to fit your room. http://www.feddersoutlet.com/sizingguide2.
