I have a wood stove that is in the corner of my family room. I have no literature on the wood stove but the back says the side and back walls need to be at least 36 inches away. I plan on putting up a heat shield against the back corner but....I'm not sure how to measure the minimum distance I need to make the heat shield extend out on either side. So my question is do I ONLY measure from the corner to the nearest point of the wall or do I measure 36 inches starting from each corner and seeing how far down the wall I can touch? If it is the latter then it extend to the middle of a french door? Also, when I'm measuring from the side do I measure perpendicular to the side of the wood stove to see if it is 36 inches from the wall?