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Near boiler piping design
im adding more floor heat in my basement, first floor, and some bathrooms. I currently have the whole house on one zone of radiators, and I want to move to two zones, everything home runned to the boiler room.
My near boiler piping doesn’t support all of these extra zones, so I was thinking of repiping. It’s a modulating condensing boiler, so I thought it would make sense to pipe the floor heat and the radiators “in series” at the the boiler, so if the floors and any of the radiators are in simultaneously then we could reuse some heat.
Some notes, i left off the boiler trim in this drawing, expansion tanks, fill valves, spirotherm, on the supply, and the dirt separator on the return. the boiler itself has a circulator on the return pipe.
I drew this and attached it here. Any thoughts ?