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
Northeast Cracker Barrel Net 
Surprised yellow and white birch are that close together, it seems like yellow birch has twice as much heat value
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