@Jay C wrote:
Is this one that does not have to be vented to the outside? Usually, the portable air conditioners need to be near a window. I have one that covers 500 square feet. I have it vented to a bedroom window and it cools 3 bedrooms and a hallway. It substantially increases my electric bill. HonnyBrown's input is the best since it really depends on whether you have the area completely closed off so that the cool air doesn't escape, how hot the outside temperature is, how high you run it, and how many hours per day you use it.