Copper isn't used because of the corrosive nature of coal. Trust everybody....when the blue ladies came dancing there is pa-lenty of heat transfer.EarthWindandFire wrote:would copper make a better hot water coil
I agree, I think you've got a lot of coil there.
If your domestic water comes from a well, that expansion tank will receive the expanded water. If you are on city water, and have a backflow preventer, you will need to add an expansion tank.
I dunno if I'm in love with fittings inside the stove. I think the factory ones purposely have all fittings outside the burn box. If you need the sharp elbow in the stove, tig weld 'em up and then put the fittings out side. Those fittings... I trust they are 100% metal? What I want to say is, I would have none of the sharkbite fittings in this line. Their max temp is 200F. You could easily exceed that.