I've found a Morso 1710 for sale and after reading about it here, it seems like it just doesn't throw the heat as an insert. But the stove is all cast iron and doesn't look too shabby sitting there on the floor. Could this insert be used as a free-standing stove, i.e. not inside of a fireplace? Being all cast, won't it work just as well or better where all sides are exposed to radiate heat?