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old gravity system

drew_14 Member Posts: 3
Installing new mod cons on old gravity system. It was 2 zones for 3 floors split north and south. Customer wants multiple zones ( very large home). System is reverse return and we wont have problem separating most zones. The question I have is can we split a reverse return zone?


  • Timco
    Timco Member Posts: 3,040
    reverse return

    As I picture it in my head, two pipe is two pipe...direct or reverse return.

    Just a guy running some pipes.
  • TonyS
    TonyS Member Posts: 849
    Why not use

    TRV,s and zone everything?
  • Big Ed_4
    Big Ed_4 Member Posts: 2,690
    Watch out for the Ghost Flow .... Boo !!!

    When you zone a parallel system just remember to connect all branches to a common single supply and return before piping to the multi zone shared supply or returned ..If this makes sense .......... If not you will be scratching you head with a Ghost Flow .... Boo Boo :)
    I have enough experience to know , that I dont know it all
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