Heat Aclimation

So I've been hitting the sauna every day for the last week for varying times. Usually for 30 - 35 minutes. There are two saunas at the South Surrey Pool: one that's hot, and one that's unbelievably smokin' crazy hot. I've been going into just the hot one for 25 minutes or so, then hitting the really hot one for 5 - 10 afterwards. It's all I can do to stay in there. I've got water and gatorade with me but after a few minutes I can't sit still and feel the need to run out screaming to the cold showers. Hopefully it'll help somewhat if it's hot in Greece. I figure I'll get up to 45 minutes a day combining both and I should be good. Last week wasn't the smartest workout: upper body weights - 45 min, eliptical workout - 45 min, 30 min sauna, 10 min Hades sauna, and a cool down with 5 min in the hot tub. Needless to say I had a headache and was dizzy for a little bit. I was sweating for a good hour afterwards, much more than normal.
A couple days ago was a 4:10, 125km bike ride with arm and leg warmers on to keep in the heat. The day after was a 2:30 run complete with running tights and two layers of shirts (on long sleeve) in the middle of a 30 degree day. That got some strange looks by people in cars passing by. It was good though because I felt okay, only a bit fatigued from the bike the day before and the fact I haven't run that long on the road since April. The next day wasn't as bad as I thought - quads were good and no shin pain. Still just a little nagging twinge on the lateral side of the right knee that isn't an issue when running although I can feel it. The next day it's only a bit achy.
Doesn't look like much chance for heat training this week so we'll be layering up to simulate. The end of the week sees me doing a 6 - 6.5 hour run, going to return to the trails for that one. Nothing too technical but still lots of elevation.