See the enclosed link, I also copied the sentence below from the link:-)
"Energy content is measured in British Thermal Units, better known as BTU's. Different types of firewood all have the same amount of BTU's per pound, but since they are not all equally dense, they vary considerably in the amount of BTU's available per cord."
http://www.naturalhandyman.com/iip/i...tfirewood.html
"Energy content is measured in British Thermal Units, better known as BTU's. Different types of firewood all have the same amount of BTU's per pound, but since they are not all equally dense, they vary considerably in the amount of BTU's available per cord."
http://www.naturalhandyman.com/iip/i...tfirewood.html
