Does anyone know the purpose of the Flame Shield on the PE Summit insert? Some older literature form PE calls this the insulating flame shield. This is a sheet of steel above the combustion chamber, above the baffle, and sits 0.1-0.2" below the thick plate top of the stove. This has the effect of lowering the temp of the stove top due to being an additional layer and it also accumulates ash further insulating the top. Why insulate the largest emitting surface of the stove and lower it's thermal efficiency? Seems to be counter productive to the main purpose of the stove. The plate top is > 0.250" thick. Don't think this needs protecting. To get the stove up to temp faster to pass emissions? Protect from over fire? Decrease the clearance to combustibles above like a mantel?