Can I use my pampered chef stones on the bbq?

Ok, I kind of already have , but do you think it's a bad idea?

I have a pizza stone that's not pampered chef that I'm pretty sure can go on the grill. I used it the other night to reheat some leftover pizza and it worked great. Last night I wanted to reheat some tator tots and decided to try the stone on the grill since we were grilling anyway. They came out crisper than when we first cooked them. I kept the stone on the upper rack.

Has anyone else used the stones on the grill? Do you think it could harm them at all?

Re: Can I use my pampered chef stones on the bbq?

If its indirect heat, I *believe* you can. I know they don't recommend it for direct heat.