air in hot water heating system

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    • #276336
      MasterPlumbers
      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

    • #293943
      Harold 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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