I have an old Glacier Bay fireplace insert that came with my house. No manual. It appears that there should be a baffle plate at the top of the firebox that is missing (there are brackets for this). Seems that it would need to be about 20" long. I burn wood exclusively... no coal. Would appreciate some advice: -Is this something that is even necessary for burning wood? -If so, is this available anywhere, and if not, can it be fabricated? If so, does anyone have the specs/dimensions? -I had initially thought that this was the same part as the banking plate (available for the similar Gibraltar stove), used in one position for coal and on top for wood, but I am now thinking that these are actually different parts. The banking plate that would fit just inside the firebox door for coal mode is about 17.5" long, as opposed to about 20" needed for the baffle on top. I do see a 20" banking plate available, but its only 3" wide... too narrow to do much good I would think. -Lastly, might anyone have an owner's manual for this that I could get a copy of, or even know what the model number is? Thank you for any assistance.