I need help to make sure I have the right clearances based on the wall I'm building. As you'll see in the image below, I have a (thin) brick wall just behind the stove with a mantel on top of it. I'm wondering what clearances I need??? The Ashford 30.1 is about 32" in height but the mantel starts at 48" above the floor. Do I need to stay 6" away from the thin brick or from the mantel? Since mantel is above the height of the stove, I'm guessing I only need to watch the distance of the mantel from the (double) stove pipe (which I believe is 16" in the USA).