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Btu rating of eucalyptus?

Discussion in 'Firewood, Heating and Wood Burning Equipment' started by injun joe, Jan 23, 2010.

  1. injun joe

    injun joe ArboristSite Operative

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    sorry guys but i couldnt find the btu rating onany of the charts i have looked at or it was there but no listed btu.:dizzy: so if any one could tell me the btu of eucalyptus i dont know what type but just as that had a guy bring us down a log tough cutting though. but threw a piece into the fire well actually thats all i threw in there and wasnt impressed at all. for what it was worth hell no then(ill probably be roasted over a fire for it but...) threw a piece of the good ol' cotton in and woo the house got HOT past 80.
     
  2. KsWoodsMan

    KsWoodsMan Addicted to ArboristSite

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    This one has Euc listed at 33-34.5 Million BTU/cord http://www.consumerenergycenter.org/home/heating_cooling/firewood.html

    Taken from the another site, the 5th post has a list of species with different Euc species listed instead off just the highest BTU type. here's the link to it too http://www.fornobravo.com/forum/f2/alder-maple-firewood-2543.html

    This one doesn't list the BTU's but rather the density of some common and uncommon species. Sorry Euc isn't on there. With a little extrapolating of values a persons could build their own chart from species of known values. Its in alphbetical order. http://www.thechimneysweep.ca/8firewoodchartw.html

    :cheers:
     
    Last edited: Jan 23, 2010
  3. injun joe

    injun joe ArboristSite Operative

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    thank you.
     
  4. johnlvs2run

    johnlvs2run ArboristSite Lurker

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    It seems to me that seasoning would have a great effect on the btu output.
     
  5. KsWoodsMan

    KsWoodsMan Addicted to ArboristSite

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    The rated cordwood BTU output , supposedly , is for air dried wood with a Moisture Content of 20%. It wouldn't matter if it was air dried or oven/kiln dried as long as the MC was the same between samples.

    And you are correct, burning green wood doesn't release as much useable heat to the house. Reliable charts will usually list the MC in the footnotes. That might be why there seems to be some diversity in the charts. One might be rating the BTU's for oven dry wood while the next one rates air dried wood. I've seen Ash listed at 20MMBTU per cord and seen it elsewhere listed at 26.4MMBTU per cord. Which one is right ? Experience tells me the Ash I've burned wasn't as good as Mulberry or Red Oak. Depending on the chart Ash might be higher, or Oak
     
    Last edited: Jan 23, 2010
  6. Wood Doctor

    Wood Doctor Edwin

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    Here is another one.

    http://www.chimneysweeponline.com/howood.htm

    They all seem to range between 6,000 and 7,000 BTU/lb. So, the average is about 6,500 BTU/Lb, irrespective of species. I'm tempted to build a spreadsheet from the above link to provide an exact figure.
     
  7. KsWoodsMan

    KsWoodsMan Addicted to ArboristSite

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    Ed, how do YOU spell Eucalyptus ? I couldnt find it on the chart you provided anywhere. :dizzy:
     
  8. Wood Doctor

    Wood Doctor Edwin

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    It's not there. I just thought I would show another chart. I doubt that a chart exists that lists all the species.
     

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