I was thinking of doing a small "Hard Tent" super-adobe structure with about a 10ft radius with a hex roof with a
rocket mass heater and bench. It occurred to me that I could put in some radiant heat flooring and do
hot water by coiling around the
RMH's drum exterior. I was figuring about an inch clearance would be sufficient for picking up the heat or would it make more sense to run a pickup line through the bench itself to draw the heat? I don't know if I can run a coil inside the drum as I'd have to worry about boiling the
water in the coil then having to address the pressure in the line. Anyone who's done
hot water from the
RMH know a good heating rig to use to drive the radiant floor?
