air in hot water heating system

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    • 6 Feb 2003 at 2:21 pm #276336
      Avatar photoMasterPlumbers
      Keymaster

        There is an increasing amount of bubbling in the hot water heating system. What could be causing the air to enter the system. The house was built in 2000, do current baseboard radiator have bleed valves?

        Thanks

        Paul

      • 6 Feb 2003 at 4:57 pm #293943
        Avatar photoHarold Kestenholz
        Participant

          The cause of more air in a system is a LEAK. Air can not get into a system to replace water unless water is leaving. Using a pressure reducing valve to feed fresh water into a leaking system to replace lost water is a guarantee of adding oxygen to the system to corrode ferrous metals. Fix the leak.

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