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Piping in boiler with indirect water heater and wall panel radiant radiators

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bob eck
bob eck Member Posts: 930
in THE MAIN WALL
Looking for help in piping in W/M oil boiler with indirect water heater and wall radiant panels with thermostatic radiator valves.
Home owner has oil boiler with indirect water heater and two supply radiant headers and two return radiant headers and has 1/2" pex tubing running out (home run) to each wall mounted radiant panel radiator and back to the return header. Each radiator has a thermostatic valve on it.
If there are no balancing valves on the radiant header does it need to be pipe reverse return?
What is the easiest way to pipe this. Should the oil boiler be piped P/S with one pump on that side and then piped with one pump for the indirect water heater and then one pump each for the supply radiant manifold headers.
Does there need to be a bypass on the radiant headers from supply to return?
Is it best to use a ECM pump with constant circulation with each room wall radiant radiator working off the thermostatic radiator valve on the unit?

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  • HVACNUT
    HVACNUT Member Posts: 5,841
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    Is there a problem with the piping as it is?
    Can you post some pics?

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