Yep that is the stuff. Turface will absorb lots of water. Great to mix into potting soil or your garden soil as well for extra water holding capacity. The real jewel of Turface is it doesn't really ever break down.
Yeah, I looked it up online the other day. Might be worth a shot. Came home from work yesterday and noticed a lot of red in the bed of the stove. Put the laser on it and it was only reading 87*, so I opened the air all the way and within an hour it was out and the stove was cold. But, it figures, it goes out and the very next day it rains. So, it's damp. I was going to wait until this weekend to clean it out but since it's supposed to rain the next few days I'll be doing it tonight after work. Or I can throw a few pieces of wood in it.