If you find yourself without a central air conditioning unit, you could be miserable during the summer months. You can save yourself the misery by installing a small, and very manageable, single room air conditioning unit. Many homeowners choose to install such a unit in their bedroom, but that’s completely up to you. You can choose between an air conditioning unit that is removable for your window, or you may opt for a permanent installation in your wall. A portable window unit is the easiest to install and you will be glad to know that you won’t have to make any holes in your wall because most units just use a regular electrical outlet.