alcohol stove

I decided to try out an alcohol stove for my next hike instead of my esbit. I bought it from trail designs and it says it uses denatured alcohol. I don't know what that means unfortunately. Does that mean I can use rubbing alcohol in it? What about HEET? Everclear?

And if there are multiple kinds I can use, which one can I use for other purposes? (like cleaning a wound or sterilizing a knife or something)