How to Bleed a Heating Radiator

Does banging in the pipes sound like someone's running a sledge hammer? Try this easy do-it-yourself fix.

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If you're a homeowner, you should educate yourself about home heating and air conditioning; this Howcast video series makes it painless.

You Will Need

  • A radiator
  • A towel
  • A bleed key

Steps

  1. Step 1

    Turn off the heat

    Turn off the heat and wait until the radiator cools.

  2. Step 2

    Locate the valve

    Locate the bleed valve. It is a circular valve with a square protrusion from its center.

  3. Step 3

    Hold towel

    Hold the towel beneath the valve to catch any water that leaks out.

  4. Step 4

    Insert and turn

    Insert the bleed key and turn it one-quarter turn counter-clockwise. When you hear the hissing of released air, you have successfully opened the valve.

  5. Step 5

    Close valve

    Turn the valve one-quarter turn clockwise once the hissing has ceased and the first drop of water exits the valve.

  6. Step 6

    Turn on heat

    Turn the heat back on and listen to hear if the noise in the pipes has dissipated.

  7. Bleed your radiator every six months as preventative maintenance.

  8. Step 7

    Contact a professional

    Contact a professional heating expert if problems persist.

  9. Did you know? Doris Day sang the song "Steam Heat" in the 1957 movie version of The Pajama Game.

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