In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Reverse Return balance question
Attached is a drawing of a reverse return system. Notice that I've shaded in Green the section of return piping after it passes the last radiator. By the way, I am designing a reverse return system with the goal of creating a balanced system. What I don't fully understand are the factors that impact the balancing. More specifically, notice I've painted in green the return run after it passes the last radiator. This section of the return is quite lengthy and makes the total return run quite a bit longer than the input run.
Very specific question, therefore, for the pros: Does that added length of return (colored green) create a system imbalance simply due to the fact that the total return run is longer than the total input run?
What I REALLY need is a crisp definition of what constitutes a Balanced and and Imbalanced reverse return system. I've spent many hours searching the internet and have come up empty.