The clearance on my installed stove is 12" to rear of stove and 9" to the center of dbl wall pipe. How far away do pictures or a wood clock hanging on the wall behind it to either side have to be away from the stove and pipe? I thought I read furniture needs to be 3 feet away, I am confused and want to be safe. Also my little stove will only take a 17" split. How do I cut it to make it fit? In the middle or off the end? I have a small electric chainsaw. Sorry for all the dumb newbie questions.Thanks