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Heat Values of assorted US firewood - Forno Bravo Forum: The Wood-Fired Oven Community



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Heat Values of assorted US firewood

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  • Heat Values of assorted US firewood

    Wood---------Weight/cord dry---------BTU X 10 to the 6th available
    Ash-----------3,370--------------------- 24,000
    Soft Maple----2,970---------------------20,800
    Red Oak-------3,609--------------------25,300
    White Oak-----3,803--------------------27,000

    This data was obtained from a 2009 workshop by Dusty Dowse on Heat Management : in a Wood-Fired Masonry Oven at the Kneading Conference in Maine. I think he said dry meant around 20% moisture otherwise the wood gasification would not provide the extra heat. Basically I think it is around 7,000 to 8,000 BTU's per pound of wood regardless of the species.
    Last edited by BurntFingers; 01-08-2010, 08:41 AM. Reason: table didn't look right

  • #2
    Re: Heat Values of assorted US firewood

    Looks good now. Thanks.


    • #3
      Re: Heat Values of assorted US firewood

      Hey Burntfingers,

      This is in line with my memory... (as sketchy as my memory can be!).

      It seams to me, that we visited a similar topic a year or more ago and the conclusion I put in my mind - that by weight, most woods produce a similar amount of heat...

      Is good to see the point brought up with some numbers to compare.



      • #4
        Re: Heat Values of assorted US firewood

        "Basically I think it is around 7,000 to 8,000 BTU's per pound of wood regardless of the species."

        That is pretty much the same number as the US Forest Service data provides (6400 BTU/lb for "well seasoned firewood").

        All wood is equal - by weight.

        The reason that dense hardwoods are preferred for wood stoves is that you don't have to add wood as often. For a wood fired oven, of course, that doesn't matter.
        Last edited by Neil2; 01-08-2010, 04:36 PM.