We are in South Texas now and it has been horribly hot and our 1 ac unit isn't cutting it. However, in the next 2 months we will be headed up north around Colorado, possible Montana or Pennsylvania. Therefore, I am thinking about getting a window unit that is an air conditioner and heater in one. I realize we will have to brace it etc, but has anyone ever done anything like this before or have any experience with one of these units?