i'm slowly getting my plans together to install a wood stove (likely for next year) and measured out my fireplace. it's got an arch-type form so i think i'm limited as to what can fit inside the fireplace. i'm wondering if there's a guideline for getting a stove that will fit partially into the fireplace of an existing masonry chimney, or is it OK/better/worse to have one that sits outside? thanks for the help!