I just bought the Englander 30 and I was planning on installing in the basement which has concrete walls. I took off all finished materials so all there is is the bare concrete wall where the stove is going. I was planning on putting the stove right up next to the concrete wall to help with the need of double wall pipe that will be run horizontally to meet my clearances on the ceiling. Anyways, I was reading through the manual and saw that it says a minimun of 8 inches to protected surfaces with single wall pipe install. I am confused. Would it be OK for me to put this stove right next to the conrete wall?