Hello, I am new to the site and looking for some good advice on a new Wood Burning Fireplace Insert. I have a large fireplace opening and I think most if not all inserts will work. The dimensions are: 43" Width opening, 34" width at back of fireplace, 28" opening height, 21" depth and the only issue I have is the extension onto hearth is only 12" which I can fix with one of the hearths that they sell at fireplace stores. I have looked at a couple different inserts so far, Hearthstone Clydesdale, Quadra-fire Voyager Grand, and Jotul C500 Rockland. I prefer the looks of the flush mounts but would be open to suggestions Pros and Cons. Let me know what you think.