I think I know the answer to this but will ask it anyway. I have a Energy Master 42 zero clearance from heat n glow and want to replace it with something more efficient. I was told by a reputable business in my area that they can replace it with a enerzone destination 2.7 insert. They said they do it all the time with no problems. Before talking to him our plan was to pull the EM out the back of the chase and put in a Kozy Heat zero clearance. Cheaper install would obviously be the insert. Any thoughts on this would be appreciated!