Species /  Heat Per Cord(Million BTUs)

Beech  27.5
Apple  27.0
Oak, White  26.4
Oak, Red  24.6
Maple, Sugar  24.0
Ash, White  23.6
Birch, Yellow  21.8
Birch, White  20.2
Maple, Red  18.6
Aspen  18.2
Maple, Silver  17.0
Poplar, Yellow  16.0

KG1Q