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Joining cast iron baseboard units side-by-side, not end-to-end
I want to join four cast iron Burnham BaseRay 2-foot units together in a floor joist bay to heat the room above. But I want to mount them standing side by side, not end to end the way they were designed.
My question is: How do I hook up the water supply/return pipes? I want to make sure the water flows properly and evenly to all four units. So, in the attached image (top view, looking down), do I use the 'snake' method in Drawing A or the 'manifold' method in Drawing B?
Also, am I correct that I'm installing supply pipes only on the bottom opening of each unit, with the top openings either capped off or for the air release valves?