Multiple Hot Water Heater Connections

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    • #276485
      MasterPlumbers
      Keymaster

      I live in an eight-unit residential building. We just had our two 100 Gallon Gas water heater/tanks replaced. They are currently plumbed in series (one heats additional water to feed to the one that distributes to the building). Someone has told us that this configuration is improper and we should have the tanks connected in parallel to the system. Which is correct?

    • #294238
      Robert Stephen Morton
      Participant

      Does the second one heat?
      Who is someone? and what are his/her qualifications?
      Normally two hws are hooked up in series, that is to have a common supply & common outlet both flowing in the same direction (manifold). However I have seen multi gas hws in series(manifolded) supplying a storage tank then to the close by fixtures, you say that you have the hot water distributed to eight units, Have you got a circulating pump? if so then someone could be correct. if you have dead leg lines to the units then you probably are not even getting hot water to some of the units, especialy the farthest units.
      Bob

    • #294239
      Selgas
      Participant

      Right with you on this one Robert!!!!!



      Selgas Services Ltd
      Craftsman Gasfitters, Plumbers, Electrical Service Technicians

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