Ash doors

Discussion in 'Remodel Forum & Blog' started by Ian Gills, Jan 10, 2010.

  1. Ian Gills

    Ian Gills Senior Robin Hood Guy

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    This is a technical question, so I assume it won't get many answers.

    My old ash door (in my basement, near the bottom of the chimney, once used to empty ash from the fire that had been put down the ash dump) had rusted so much that when I prodded it with a crowbar it fell straight out and broke up into dust.

    I want to replace it.

    I have two choices: cast iron and cast aluminum.

    What's the difference?
  2. FloridaOrange

    FloridaOrange Plumbing Designer

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  3. Ian Gills

    Ian Gills Senior Robin Hood Guy

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    No Mr Orange, I meant for the specific use in an ash door.

    When should one use a cast aluminum ah door over a cast iron one?

    And vice versa.
  4. FloridaOrange

    FloridaOrange Plumbing Designer

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    Oh, I just wanted to answer the direct question with lmgtfy.com, I love that (those) answers.

    My experience with chimney stuff is limited to cast iron, sorry.

    To add: I think the aluminum will dissipate the heat faster than the iron but the iron may last longer but that is a guess.
    Last edited: Jan 10, 2010
  5. jimbo

    jimbo Plumber

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    There is no heat down there, and I presume no hot ash or debris. Go for the aluminum.
  6. Ian Gills

    Ian Gills Senior Robin Hood Guy

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    Thanks Jimbo.

    May I ask why?
  7. jimbo

    jimbo Plumber

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    It doesn't rust in a wet enviroment. Of course, aluminum can experience corrosion, but iron probably corrodes worse in this application. Just a guess, actually.
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