Jed,Why would it matter what the person using the heat does with it. All you should be concerned with is the temperature of the out flowing fluid/steam and it's rate of flow and the temperature of the incoming water and it's rate of flow. You could have a wall with two holes and two pipes in it, one out going hole /pipe and one incoming hole/pipe and not give a damn what is happening on the other side of the wall. The results will be the same.
Robert Dorr WA7ZQR
