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New boiler install one pipe counterflow
Installing new boiler in small house has single pipe counterflow system. The original manifold runs full size 2 in from Supply to return with tees for each radiator. From what I can tell I should add returns just before each radiator connects to the manifold. Is that needed and Do I run those to the floor and tie them into the manifold return. And does it require a Hartford Loop would I be tying the new returns and the manifold return back in at normal Hartford Loop height?