Hello, I'm looking for some advice on venting a propane "fireplace" up through the roof since the location is not near an outside wall. I decided against the "vent-free" option, and I would like this to be a typical looking fireplace with a mantel, etc. I have a wood stove about 10 feet away which has a stove pipe going up through the roof and I want a second form of emergency heat, but not another "stove" in the same room. The ceiling is all open up to the peak, so I don't have to go through an attic. FYI, my primary daily heat source is a heat pump but due to frequent power outages I am installing a standby generator which runs on propane but it will not power the heat pump so I want another heat source besides wood for convenience and something that can heat the house well when I'm not there. So anyway....since I don't have a chimney on this wall it would seem like I need to use stove pipe again but that doesn't seem right to have stovepipe coming out the top of a fireplace close to the wall. I thought maybe there might some kind of well insulated flat chimney pipe that I could put next to the wall all the way up to the ceiling over some cement board and cover it with manufactured stone to resemble a standard masonry chimney but I have no idea if that is safe or even practical. I just need to know what some good options might be. Thanks for your help.