In this video, This Old House plumbing and heating contractor Richard Trethewey silences a noisy radiator.

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Steps for Quieting a Steam Radiator:

  • Turn down the room’s thermostat to ensure the heating system doesn’t start up.
  • Use a 48-inch level to check the radiator for level.
  • Use a pipe wrench to loosen the nut holding the radiator to the steam pipe.
  • Lift the low end of the radiator and slip furniture pads under each foot of the radiator.
  • Raise the opposite end of the radiator and set it down onto furniture pads.
  • Check the radiator for level, and add or subtract more furniture-pad shims, if necessary.
  • Tighten the nut to reconnect the radiator to the steam pipe.
  • Unscrew the old air vent from the radiator.
  • Wrap Teflon tape around the threads of a new air vent, then install the new vent onto the radiator; hand tighten it only.

Shopping List:

  • Furniture pads, used as shims to level tilting radiator
  • Air vent, for replacing the existing air vent
  • Teflon tape, for sealing the threads on the new air vent

Tools:

Related

The Pros and Cons of a Steam Heating System

Tools & Materials

  • Pipe wrench
  • level - 4-foot