[BGP Spook]

The primary purpose is to reduce the foot print of having four heatercores in the same relative plane.
When they measure 12"x6" and you want to fit more components than just four heatercores in a 24"x24" plane it gets very difficult.

Thank you, Long Haired Git, for you help, advice, and numerous usefull links.

And yes I understand it is all about airflow. The reason for all this fuss is I am trying to get a design for a personally made case sorted out in my head and on paper before I go shopping for components.

In short, I have a self-imposed dimension limit, and I need to get the basic structure designed and 'ideal' componets fitted.

There is no rush, however, since I don't plan on buying or building anything until the May at least, likely later.