Hello! I've been doing extensive research trying to find a way to solve the smoking issues in our see through masonry wood burning fireplace. Here are the details, thus far: - The fireplace sits between a very large kitchen and a much smaller den. - We know the flue is too small (13" square for two openings each apx 34"x30"). - The damper is 7" wide x 30" long and functions properly, although it is offset much closer to the kitchen side of the fireplace, creating a 'shelf' on the den side (the side that smokes). - We added an Enervex fan which has helped a lot with the draw issue, but has not completely prevented the smoke from spilling into the den. - We then tried raising the grate, which in conjunction with the fan, helped, but still didn't completely solve the problem. - We then roughed in a piece of plywood to cover the den side (simulating doors) but a little smoke still seeped out (even with the raised grate and fan running). This got MUCH better when we duct taped the gaps between the plywood and stone, and we had no spillage at all when we burned a fire for several hours. Based on our experiments above, it seems that our problem could be solved with installation of a fixed Neoceram or Pyroceram panel with fireproof sealant on the den side ((to create an airtight seal, tighter than what could be achieved with doors), and a simple screen on the kitchen side. I understand that these ceramic 'glass' materials are extremely heat resistant, so there shouldn't be an issue with them breaking, particularly since the fire would be several inches away from the surface (32" deep firebox, and we're keeping the grate closer to the kitchen opening. This would allow us the functionality of a trouble free single sided wood burning fireplace, with the look of a see through fireplace. However, despite multiple Google searches and contacts with industry experts, I have yet to find anyone who has done this, and even more importantly, anyone who has done this successfully. Does anyone have any experience with this? If this is a feasible solution, I'd like to know the best way to proceed and find a local resource that could assist with measuring and installation.