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Hydronic Questions

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by Mtn Fire, Jan 25, 2013.

  1. Mtn Fire

    Mtn Fire New Member

    Joined:
    Dec 12, 2011
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    Loc:
    New Mexico
    Hello out there,

    On a typical hydronic gasifier, how much powder or creosote is brushed out during an annual cleaning of the exhaust and heat exchanger tubes?

    thanks in advance,

    Alex

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  2. AroostookDave

    AroostookDave Member

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    Loc:
    Aroostook River Maine
    I clean the tubes monthly - after I clean the ashes from the lower firebox, I reach into the top access, bang each turbulator up and down a couple of inches to knock the ashes off and then scrape the base again. Usually not much ashes but worth doing. 2 or 3 times a year I get the brush out, but never run into creosote, so no big job. I clean the horizontal section of the flue a couple of times per year, but never find more than a thin coating of fine ash at the bottom.
  3. Mtn Fire

    Mtn Fire New Member

    Joined:
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    Loc:
    New Mexico
    thank you,

    Alex
  4. bmblank

    bmblank Minister of Fire

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    Michigan
    My dad and brother are in the once a year club. Through the entire chimney there's maybe a gallon and a half of creosote. That's probably 30 feet out so of chimney.
  5. Mtn Fire

    Mtn Fire New Member

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    Hello,

    Is the creosote in the boiler or just in the chimney? Thanks for your reply.
  6. BoilerMan

    BoilerMan Minister of Fire

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    Loc:
    Northern Maine
    A properly tuned and seasoned wood burning gasser produces no creosote, just a grey-black flyash. Creosote is an indication of something not correct or a lot of idleing.

    TS
  7. Rory

    Rory Member

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    Central Me
    I agree. I'm on my 5th season with my Tarm Solo 30, and I have yet to see any creosote in my chimney. I clean my heat exchanger tubes a handful of times each year, and all I get is fly ash. I've burned a fair share of softwood in my mix, too, but still no creosote.
  8. bmblank

    bmblank Minister of Fire

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    Loc:
    Michigan
    Ok, i guess i call fly ash creosote. I get a little creosote in the firebox near the door, i open the door too often, its still new to me. Anyway, i clean out the secondary every burn or couple of burns and get about half a gallon of fly ash.
  9. James Reimer

    James Reimer New Member

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    Loc:
    Winker, Manitoba
    I run a brush through my horizontal tubes once a week as part of the regular cleaning cycle. Takes only a few minutes and I get maybe a cup of dry ash a week from the tubes themselves.
  10. Mtn Fire

    Mtn Fire New Member

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    Loc:
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    thank you,

    Alex
  11. Mtn Fire

    Mtn Fire New Member

    Joined:
    Dec 12, 2011
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    Loc:
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    Thank you,

    Alex
  12. Mtn Fire

    Mtn Fire New Member

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    Loc:
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    Thanks,

    Alex
  13. McKraut

    McKraut Member

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    Loc:
    South Central PA
    Alex,

    I clean my exchangers (eight of them) once a year and I get less then a soda can of residue out of them. I've never had creosote in my chimney. The only blockage I ever had was a starling that decided to fall down the chimney and wedge himself in there. After I put a "roof" on my chimney, I've never had anything to clean out. I hope my two cents help you.

    Bob
  14. Mtn Fire

    Mtn Fire New Member

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    Thank You Bob,

    Alex

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