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Someone idiot fixed a crack in my 25 year old furnace with J B Welding which according to the packaging says it is only good to 600 degrees. Is this true? I obviously need to get a new furnace. I heard that J B welding emits toxic fumes so I wanted confirmation that I should not use the furnace. It's in my crawl space. Can you recommend a good brand. I live in Alaska and I know we have dealers for Lennox, possibly Crane. Thanks!

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  • deltaj49 May 09, 2010

    You confirmed my suspicions. Any recommendations on brands of oil furnace that fit in a crawl space. That was the second part of the question. Thanks!


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According to the manufacturer's website, J-B Weld is non-toxic, but they do not recommend using it in equipments or things that you use for cooking.

So I think, you really need to get a new furnace.

Sorry about that, but that's the information that I've got. It's better to be in the safe place.

Thank you and good luck!

Posted on May 09, 2010

  • Melvin Ramos
    Melvin Ramos May 09, 2010

    Thank you!

    I tried searching for stores that sells furnace, but, I couldn't get a good result for my search. Aside from that, I'm not sure about the height of your crawl space (how many inches tall). So better check the link below:

    They're selling used furnace, and they're offering different types of it.

    Good luck!


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