got my stove all set heat is awsome i had a installer(friend i like to do things my self )come out to double check my work everything was fine, BUT i need to put something in front of insert something fire proof 6" out on floor i went to a stone place and bought a piece of blue slate 10x30 to place in front of it ,rest it on floor.. ,do i need to put trim around it or leave it the way it is?????