Gary Loomis wrote:Thank you for your responses. Initially I was thinking of purchasing the Dragon Heater and putting it along side the vertical chimney mass and retrofitting the ledge as a bell, but this isn't really a retrofit of the existing mass and seems to have a number of downsides. I've been reading permies threads talking about RMH inserts into existing chimney spaces, whether J tubes or batchbox. The fireplace itself has a relatively large volume, 3 ft long, 2 ft wide, and 28" tall. Are those dimensions feasible for a RMH insert of some sort that would take advantage of the existing thermal mass? If so, do you have any pointers or resources you would point me toward?
Also, it sounds like the batchbox is the second generation of RMH that are much improved, but I really don't have welding or fabrication experience at all. I've assumed this really disqualifies me for for the time being from creating a batchbox system. Is that your perspective?
Thank you very much for your help.