Ok I am goin nuts cause I am hearing so many conflicting ways do this!! I was told use metal studs, I was told to screw 24 gauge metal to my exterior wooden studs screw the sheet metal to that then put micore board over the sheet metal then tile over micore ?????????? Please I trust you guys on this forum cause you have wood stoves , I'm ready to build it the right way , but my head is spinnin Thanks