I'm enclosing class a chimney that runs through our dining room. I need to keep the 2" minimum to combustibles, which if I use wood studs would enclose a much wanted outlet inside the chase. If I use metal studs turned sideways I can save the outlet. Can my metal studs enter this 2" clearance area? I'm wondering if the heat would conduct through the stud and to the paper on my drywall causing a problem. Thanks for your help.