Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
ASHRAE Appendix G modeling methodology does not allow modeling of pipe losses, and most modelers and UI's by default will use Pipe:Adiabatic instead of Pipe:Indoor when pipes are required in PlantLoops. You should use Pipe:Indoor only when you want to explicitly model piping losses. As far as the pipe length - EnergyPlus has no requirements that the pipes be of equal length
