Sorry. I was in a hurry to find a chart. I had no idea how hard it was to find the chart with temperature on it. Here is one showing the pressure at 28" Hg. I just checked ours and right now we are running about 90 degrees F.
No problem. You probably know a whole lot more about this stuff than I do. I was just trying to make the point that spent steam from power generating turbines might very well be hot enough to use for distillation either as the sole heat source or at least to provide a good part of the heat energy required. I don't know how practical that would be, but it may be possible.