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fire box

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jsmith6752
jsmith6752 Posts: 2
edited September 2020 in THE MAIN WALL
I am working on a well mclain boiler. It needs a new fire box. It dates back to 1985. The fre box is no longer available. Linn does not make on for a model 86. Any suggestions? thanks

Comments

  • HVACNUT
    HVACNUT Posts: 7,746
    Is this a residential boiler. The model is 86 not 68? Even though around '85 the current model was the 66 series. Is there a yellow sticker with a code that starts with CP? Call WM with that code and they might be able to help.
    What condition is the rest of the boiler? Pics? Wet pack and kaowool blanket?
  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 21,181
    Yes just buy a wet pack universal blanket kit. It's a wet based boiler and while the chamber is important it's not as serious as a dry base boiler. You can easily fix it up so it will work.
    rick in Alaska
  • Steamhead
    Steamhead Posts: 18,976
    edited September 2020
    The 86 series was the predecessor to the current 88 series. It was a larger commercial-size boiler made in the 1970s and 1980s.

    I have an old W-M CD that shows discontinued models like the 86. The firebox is not listed. But, you can make the necessary refractory pieces using Kaowool blanket such as Lynn #9450. Cut it to fit the front plate, target wall area and floor of the chamber, and secure it in place with plenty of Waterglass adhesive.

    What is the exact model number? What burner is on that boiler?

    Co-Founder, All Steamed Up, Inc.

    Semi-retired

    Baltimore, MD, USA

  • Robert O'Brien
    Robert O'Brien Posts: 3,611
    It's a serious boiler. The smallest 86 is about 800k BTU/hr 

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