Am installing the 7100 in my new home next week. Should I be concerned about monitoring the temperatures of both the fire-box and the flue ? Because I'm inclosing the insert into a rock surfaced interior, how will it be possible to monitor the flue temperatures ? Is there a sensing device that I should install in the flue, prior to finishing the wall of the room? I'm not sure of what I should require, before enclosing and framing the Great Room wall...... any suggestions ??