Well, I can't really answer your question, all I 
know is that fires can usually be easily 
avoided... no unnecessary lights on, same for 
other electronics, watch the gas exits and 
keep 'em shut unless you need them, etc.

Just keep them near a fire extinguisher or 
something. But no offense, I think you're 
panicking a bit. 

There's a few advice I have:
-in case of fire, get out everything thaz's alive 
first
-then everything that's highly valuable and maybe 
even uninsured. You can insure cels.
-try to avoid fire and enjoy your cels :) Myself, 
I couldn't enjoy things I constantly have to 
guard (or feel I have to).

Ore-sama