Parallel pipes models

[ricard...@ucdconnect.ie]

Hello Guys, I was just wondering if you guys cold help me with a question, I have  district heating model where I am using the parallel pipes from the buildings system library, right? I was wondering if you guys could help me understand what is the output I should be looking at if I want to know the heat loss from my pipe, I am trying to evaluate the best insulation for my system, but there are so many results from these pipe models that I am a little bit lost on which one I should be looking at;

thanks very much