I'm thinking of putting a wood stove in my family room to cut down on heating costs in the house. I have an existing pre fab chimney that is connected to a propane gas insert with the fake logs, etc. There is glass in the front so it is entirely enclosed. It doesn't put out much heat at all. Anyway, could I get rid of this insert and somehow use the existing chimney for my stove. If so, how much are we talking money wise, and how much would it cost to leave all that stuff as is and just set the stove in the corner and have a guy build me a new chimney. Thanks