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Heat, Light & Energy

Firewood

Heat value of firewood by species — green vs. dry weight, million BTU per cord, and BTU per pound.

FirewoodWoodEnergy
SpeciesGreen Weight
(lbs. / Cord)
Dry Weight
(lbs. / Cord)
Heat per Cord
(Million BTUs)
Heat per Dry
lb. (BTUs)
Apple4,8503,88827.06,944.4
Ash, Green4,1842,88020.06,944.4
Ash, White3,9523,47224.26,970.0
Birch4,3122,99220.86,951.9
Catalpa4,5602,36016.46,949.2
Douglas-fir3,3192,97020.76,969.7
Elm, American4,4562,87220.06,963.8
Fir, White3,5852,10414.66,939.2
Honeylocust4,6403,83226.76,967.6
Locust, Black4,6164,01627.96,947.2
Maple, Other4,6853,68025.56,929.3
Maple, Silver3,9042,75219.06,904.1
Mulberry4,7123,71225.86,950.4
Oak, Bur4,9603,76826.26,953.3
Oak, Red4,8883,52824.66,972.8
Oak, White5,5734,20029.16,928.6
Osage-orange5,1204,72832.96,958.5
Pine, Ponderosa3,6002,33616.26,934.9
Pine, White2,25015.97,066.7
Redcedar, Eastern2,06013.06,310.7
Redcedar, Western2,9502,63218.26,914.9
Spruce2,8002,24015.56,919.6
Spruce, Engelmann2,07015.07,246.4
Sycamore5,0962,80819.56,944.4
Walnut, Black4,5843,19222.26,954.9
Willow4,3202,54017.66,929.1
Average4,3333,07221.36,937.2