There's information on the internet on baking biscuits on a stove top. On the other hand, we have a Weber Q1200 and they get pretty hot with the lid down. You can get a griddle to fit them, which is what I'd do, then put your biscuits in a cast iron skillet on top of the griddle. This should prevent them from overcooking on the bottom or burning first. Or use a tin pie plate. You'll have to experiment with the setup. I don't think I'd use a pizza stone because I've accidently had them on the stove and lit the burner, and busted the stone in half. They don't tolerate direct heat which is what would happen in the Weber.