In the hot summer months, many homeowners enjoy the cool air-conditioned air in their homes, but not everyone has central air conditioning. Maybe it is an older home, or maybe not every part of your home gets cooled as well as others. Whatever the reason, the solution could be a window-mounted air-conditioner. These units can be picked up fairly inexpensively, and they commonly range from five thousand BTU to 23 thousand BTU. Of course, the higher the BTU, the bigger the room that it can cool down. The higher the BTU’s, however, the more important it is to have it mounted properly. An air-conditioning unit that isn’t properly mounted could fall down and hurt someone below. Sometimes your air conditioning unit will come with a bracket that you can use for mounting it safely in your window, but other times it might be necessary to purchase it separately. Either way, the extra effort, and cost are worth it since a falling air-conditioning unit could seriously damage or even kill someone.