It is strange to be in those conditions, i have tried it too, it is like you sweat salt as what ever fluid in it evaporate instantly.
It is not fun working in those temperatures, even if you are only working half of the 7 hour work day, you simply die if you try to put in just a average work effort.
Last big ship i was on, every day i climbed up the stairs and ladders to up high in the smoke stack ( wearing gloves cuz you can not touch the steel up there ) There i had to inject some Copper sulfate looking stuff stuff into the exhaust as that would clean them.
It took about 2 - 4 minutes to do, but it felt like hours, and when done you wasted no time enjoying the view down the the engine room, O no you almost fell down the ladders and stairs as quick as you can.
Temperatures up there must have been on the wrong side of 70 degrees you did absolutely not sweat up there.
I have tried to be in much warmer rooms, but wearing some clothe othat then the ship engine room shorts and T shirt, like a 180 - 200 Degree C warm oven where you cure powder painting ( must wear air mask cuz thats far too warm to breathe )
And 5 seconds after you have entered your brain scream OUT ! OUT ! OUT ! and you still have to pick up the stuff that have fallen off the conveyor and get it out.
Similar getting my smoke diver education, some rooms you have to put out are initially way over 200 degree warm and you have to cool the room a little before you enter it to put out the fire, but there you wear proper gear so you dont really feel the high temperatures as much.