Hi, In my project, we have an old hydronic heating system with boilers. However, i saw some old pipes coil that were installed as radiators. I have to remove this and replace it with an unit heater. I have to convert the heating load in order to be able to do the selection. Can somebody help me with this? That's what I found on the plan: PIPE COIL 8 X 1-1/4" X 58'-0" long = 200(weird symbol at the end of 200, like a F with a square in the middle) How can I corvert this into BTU/h? Thanks!