Burning Feet in steamroom

[Guest7]

I am in the Refinery room, did all the stuff, went up the ladder and put the rock in the fan. Went through the fan a ways, it does not explode; and I keep going till I get to the Steam Room. All the squares have steam, how do I get across?
I tried doubleing back through and out the Refinery door, but the door is now stuck.
So I have to run through the steam.
I read on the walkthrough, but I still need hints. Please Help.
Any additional hints on getting across the steam?
And does it matter if the fan had to explode or not?
Thanks