>>17471899He might be tough enough to take the heat, but he is not tough enough to take part in Saunaklonkku...
>>17471617It's not painful at all, people exaggerate the effects.
50 °C feels warm but you have to spend a long time in the sauna to feel the muscle-relaxing, circulation improving effect.
70 °C is a nice, perhaps perfect blend of air heat as you get the health effects faster and can feel the burn from the steam easily. You get the best of both worlds.
80...90 °C starts to feel hot quite soon, it's not comfortable anymore. You need to take breaks and when generate steam, it actually burns. Some people enjoy this, much like some people enjoy the agony of high-intensity sports, hot chilis, BDSM etc.
100+ °C is for masochists and people who like to stay in sauna for 5 minutes and get out. Breathing burns, the steam burns, everything just burns. There's sauna competitions in nordic countries and the end result of long duration at 100+ degree steam is (at worst) death or lung/skin injuries which take months to heal.
https://www.dailymail.co.uk/news/article-1301281/Vladimir-Ladyzhenskiy-dies-World-Sauna-Championships-Finland.html 
