I am desperate here. We heat with oil and my gf loves to burn duraflames in the fireplace. She loves the ambiance, I see dollars going up the flu. I wont buy wood, so she sneaks duraflames in when I'm not home. We agreed to convert it to a wood stove as a way to meet half way. I am mechanically inclined and have no problem tackeling this project, I just need to be shown, or where to read the proper way to do this to pass inspection. Fireplace is centered on 16' wall, 14' ceiling above. Typical fireplace with mantle and small hearth. In the end I'd like it too look like flat stone all the way up and a bigger hearth. I just need to know how to knock a hole in the flu and do it right. Also maybe how big to go on hearth so the whole thing takes up as liitle floor space as permitted. (We dont want an insert, just a free standing wood stove) than