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Summerizing my boiler

Ozmat Member Posts: 15
edited April 2020 in THE MAIN WALL
Do I drain the boiler or leave it full of water when not in use for the next six months?


  • STEVEusaPA
    STEVEusaPA Member Posts: 6,386
    No, don't drain.
  • Grallert
    Grallert Member Posts: 603
    I have two big boilers. Essentially the same things you might find in a big residence but really big. At the end of the heating season I fill them up to the very top and fire them up to boiling to remove the O2 and close the king valves.
    Miss Hall's School service mechanic, greenhouse manager,teacher and dog walker
  • Intplm.
    Intplm. Member Posts: 1,620
    Its called a wet lay up. Keep water in them till the next heating season.
    And do what is said ^^^^^^^above^^^^^^^
  • bburd
    bburd Member Posts: 784
    And don’t forget to drain it down to normal level on the gauge glass when you fire up in the fall!

  • Ozmat
    Ozmat Member Posts: 15
    Thanks for the information. Last season I added 8-way boiler water treatment to the boiler. What are the thoughts on additives for rust and corrosion control?
  • Intplm.
    Intplm. Member Posts: 1,620
    Ive used them commercially with very good results. Just be very good about following the manufacturers suggestions.