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Prepping boilers for the summer?

Big Ed
Big Ed Member Posts: 1,117
Punch the tubes and fill the boiler to the supply pipe with water...


  • Matt_39
    Matt_39 Member Posts: 2

    What should I do to prep two 1 million btu steam boilers to sit through the summer?

  • Matt_39
    Matt_39 Member Posts: 2

    What is "punch the tubes"?

  • Paul Fredricks_3
    Paul Fredricks_3 Member Posts: 1,552

    Brush out and vacuum the flue passages in the unit. Soot that is left in a cold boiler will absorb moisture and become very corrosive.
  • Brad White_9
    Brad White_9 Member Posts: 2,440
    It may also be helpful

    to fire the boiler to almost the boiling point to drive off any excess oxygen, or add an O2 scavenger chemical for the duration. Then flush before you start up again in the fall.

    Other technique: Purge and charge the drained boiler with dry nitrogen to about 5 psig.
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