I am looking @ purchasing a Osburn 2200 insert and need to know how far the insert will protrude onto my hearth. I only have 21" of depth on my hearth....so I can only have an insert set out approx 5" onto the hearth. When you click on the Manual for the 2200 on Osburns website you get the manual for the 1600 insert (which i assume is very different in size). Tried to call manufacture of insert out of Quebec but they have not called me back yet. It looks like you can adjust the depth of the stove from flush to further out. Any info would be greatly appreciated.