drawing hydronics

When drawing your hydronic schematic do you flatten it to a top view? Do you draw the boiler loop and dhw on the same diagram? Does it matter all the little twists and turns? Do you show the ret,incom. on separate sides or each zone together?

Its in series with 3 zones Active, +1 more comming soon. and elect tank for dhw storage from s260 coil.

Schematic is a simple line diagram. When showing all fitting turns and components it is a Isometric Drawing. A Diagram is a good conceptual illustration, but Iso. will be better for getting a parts list and more to scale measurements. Engineer types are more Iso. driven, but they always start w/ a schematic diagram first.

Many diagrams are worked out on a bar napkin.
So it really doesn't have to be too fancy.

Ok working on my second schematic first had lines crossing all over.