I have a Shelburne on order, but haven't been able to see one in the showroom yet. I know this is a medium-sized stove (2.0 cu ft), and that the firebox is 19"-20" wide, but I have no idea how deep it is. Can anyone tell me what the useful depth of the stove is (that is, without wedging a split between the rear firebrick and the front glass)? I'm assuming it's between 11"-13" deep. Thanks in advance...