Hey guys, hoping you could give some advise. I have a regency medium size insert. The chimney for the fireplace is in the middle of the house so its an interior chimney. I dont have a block off plate or insulation above the stove. The stove is installed correctly with a 6 inch liner all the way up. I just want to make sure I have done everything I could to crank out the most heat I can. Oh my wood is split and stacked 2 full summers already. What else should I do. I have read that a block off plate is not necessary if its an interior chimney.