I have the heat protector for the rear of this VC Resolute model 0042 I believe with two doors made in about 1985 or so. They did not install it because the stove backs up to stone wall and fire place and is between two stone walls of a hearth. I want to install it thinkiing it will reflect more heat to the room but do not know how it installs, help? Doe it pop in holes or need to be screwed in? Can one short woman do it or no?