An Important Lesson about Drying Firewood
A cord of freshly cut hardwood from a northern forest (green firewood) contains about 24,000,000 British Thermal Units (Btus) and weighs about 4,500 pounds. After proper air drying, the same cord weighs only 3,500 pounds. The loss of 1,000 pounds of water at 8.34 pounds per gallon is about 120 gallons.
Wood moisture content vs. net Btus available per pound of wood
(Green wood is 45-50% water on average)