I am looking at putting in an insert appliance - I have an existing open fireplace that is unused. I am looking at a Napoleon 1402, house is just under 2,000 sq feet. I have a friend in the construction business that can get good deals on Heat & Glo products though. So looking at their line all I see in flush fireplace inserts. My first question: Is their a difference between a wood stove insert and a fireplace insert? Second question: for those in the know, if there is a difference, what has a higher efficiency? I am sure this will spark many different questions, but those are my starting points - basic at best. Thank you!