I just had a Lopi Large Flush NexGen Wood Insert installed and am trying to familiarize myself with the stove. I've read the manual completely and looked at YouTube and can't figure out what parts need to be removed in order to access the chimney flue in order to clean the chimney liner. I'm a complete newbie and not overly handy, but need to figure out how to clean the chimney liner. Anyone own this stove? Any help you can give me would be much appreciated. Doug Dillingham Ohio City, Colorado