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  • open hot water heating system

    have any of you ever worked on a open HWH system?

    just curious.

    Vince

  • #2
    Re: open hot water heating system

    All the time. Still lots in use here in DC

    Gravity systems with millivolt gas valves. No expansion tanks. Oversized heat mains. Easy to fill and vent, just turn the valve on until water runs out the pipe through the roof.

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    • #3
      Re: open hot water heating system

      Originally posted by plumberscrack View Post
      All the time. Still lots in use here in DC

      Gravity systems with millivolt gas valves. No expansion tanks. Oversized heat mains. Easy to fill and vent, just turn the valve on until water runs out the pipe through the roof.
      was this invented before the closed system and circ pumps?

      Vince

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      • #4
        Re: open hot water heating system

        Originally posted by Vince the Plumber View Post
        was this invented before the closed system and circ pumps?

        Vince
        Invented before electricity was discovered





        and yes, electricity was discovered NOT invented

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        • #5
          Re: open hot water heating system

          thanks alot PC.

          Vince

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          • #6
            Re: open hot water heating system

            Gravity systems sure are lean and...some what mean
            West Trail Mechanical Ltd
            Service. Commitment. Expertise.

            www.westtrailmechanical.ca

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