We are interested in adding a wood burning insert to an existing fireplace.
Our issue is that our chimney is already lined: but not with the typical liner. At the top are terracotta tile liners, and toward the bottom, the chimney is double-bricked. However, as a result of this, no standard liner can fit. As is the diameter of the chimney is far larger than the normal venting pipe attached to wood burning inserts.
Is it a fire hazard or smoke hazard to install a wood burning insert and vent it directly into the chimney?
I acknowledge and understand that as a consequence the chimney will need to be inspected, swept, and cleared of creosote on a regular basis (biannually).