I know some folks have put up stone, fake stone and in some cases even soapstone tile on the walls of their hearth surrounding their woodstove. Due to the intense heat and constant cracking of the drywall in the corner I plan to do something as well . . . I am curious though . . . has anyone noticed if putting up any of these products has resulted in the stone, fake stone or soapstone sucking up and then slowly releasing the heat as a heat sink? I know my thin slate on the hearth doesn't really work too well as a heat sink, but then again it's a thin slate and not a lot of heat is thrown down below the stove.