It would be incredibly expensive to retrofit an A/C system to the park, not to mention the added electricity costs. And where would the A/C infrastructure go? Most large buildings have the A/C units on the roof. Even without that option, the building was not planned to have A/C from the start, so something would have to move to make room for the new equipment. Miler Park is heated and air conditoned throughout, except for the seating bowl/playing field. I know this to be fact, as I was part of the installation crew. I left just a few days before the crane collapse. With all due respect, I read your post and thought well if it is everything EXCEPT the seating bowl and the field what else is there? I guess it makes sense that the luxury boxes and clubhouse would be air conditioned. I just think that if your sitting in a regular seat in the middle of the summer, if the seating bowl isn't air conditioned... the stadium isn't air conditioned. I remember reading about the stadium and how they said it would be heated but not air conditioned. I think when it is discussed people generally mean the seating bowl and the playing field.