I was given an old Timberline woodstove. It is now installed in my log house. But the people who gave it to me removed most of the fire brick to lighten it and make it easier to move. This thing is HEAVY. I have all of the brick, but am not sure how to put it back. Is there any particular pattern? Do I do the back of the stove and then the sides? Does it matter as long as there's no gaps? The brick on the floor of the stove is still there (too hard to get out, I guess).