If it is the VOLUME of water (GALLONS) in a hydronic system you are after not the GPM or flow rate, the best way is to take the linear feet of pipe in the system and find the volume based on diameter. Tables can be found in any piping handbook. This is the only acurate way because there is a...
I am going to take this thread one step further. I am looking for an inexpensive controller to handle a small split system with a modulating steam coil. I understand (and agree with)the comments about not allowing everybody to manipulate the controls but this was not the intent of the original...
