I have a later 70's standard 2-story colonial which is not at all a open floor plan. I got a nice old Timberline insert to put in my fireplace for $200. Wondering ways that I might be able to distribute the heat throughout the house? The fireplace is in the family room on the first floor. I put in a new gas forced air furnace a couple of years ago that has a D/C fan on it. The fan ramps up when the furnace calls for heat and ramps back down to a slow speed when the furnace does not call for heat....so there is always air circulating thru the duct work. If I close off most of the cold air return lines except for the one in the room with the stove do you think this would distribute some of the heat???? Open for any suggestions!