I'm sure this topic has been covered before, but I can't seem to locate exactly what it is I have been thinking about. First of all, I am a completely new wood burner so please excuse my inexperience and I am also not a plumber, so forgive my shortsightedness in that regard as well. My insert is located on the first floor directly above my boiler in the basement. I have baseboard heat and there is no hot water storage tank in my system. Here's my latest thought. I would have to look closer, but I think that there may be a little room behind my insert. Maybe 6 inches, maybe less. I was wondering if there was any way to run a pipe, copper tubing, stainless steel, etc. behind my stove and then have it then run directly down to the basement through the existing masonry floor to the boiler. I have seen devices that are mounted inside the stove and that requires drilling holes in the stove and that does not appeal to me at all. I thought that a system such as this would help me to deliver heat to more parts of my home. Obviously by pre-heating the hot water before it gets into the boiler. I have been somewhat successful at figuring out how to move the hot air around the house from the insert, but my floor plan is less than ideal. I use numerous fans in doorways and such and it works well, but could be better. I have managed to cut maby 1/4-1/3 off my heating oil bills, but I want to do more and thought this may be a way to accomplish that. I am not so concerned about dhw use as its just the wife and I, so we don't run high oil bills in the warmer weather. I know there will be some problems to deal with such as overheating the water and needing shut-offs and pressure relief valves and all, but what else? Is this even in the realm of possibility or am I dreaming? If this is just a pipe dream please shoot me down so I can move onto some other thoughts. Thanks in advance.