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primary secondary systems

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clammy
clammy Member Posts: 3,113
in THE MAIN WALL
was wondering seen both ways which in your opinan work better. seperate tee off primary for each defined system,ex.indirect water heater,baseboard,radiant or just one set of tee's sized for the whole sec.systems.i have usedthe first method mentioned without flow valves and experenced no ghost flows or thermal migration while i have worked on systems done with one set of tee's and had ghost flows and someamazing thermal migration.all things aside both systems had flow valves on supply and returns to theindirect water heater to prevent overheating of domestic tank just wondering if anybody else has tried these options
just looking for some input thanks
R.A. Calmbacher L.L.C. HVAC
NJ Master HVAC Lic.
Mahwah, NJ
Specializing in steam and hydronic heating

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  • clammy
    clammy Member Posts: 3,113
    Options
    primary secondary systems

    was wondering seen both ways which in your opinan work better. seperate tee off primary for each defined system,ex.indirect water heater,baseboard,radiant or just one set of tee's sized for the whole sec.systems.i have usedthe first method mentioned without flow valves and experenced no ghost flows or thermal migration while i have worked on systems done with one set of tee's and had ghost flows and someamazing thermal migration.all things aside both systems had flow valves on supply and returns to theindirect water heater to prevent overheating of domestic tank just wondering if anybody else has tried these options
    just looking for some input thanks
    R.A. Calmbacher L.L.C. HVAC
    NJ Master HVAC Lic.
    Mahwah, NJ
    Specializing in steam and hydronic heating
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