I remember reading a study by the government that dealt with how many acres needed to sustain firewood for a house. I can't remember how they split up the country, it was at least 20 years ago that I read it. It went into managing your lot to get the maximum amount of burnable wood from the lot. Things like reducing crowding and picking which trees to save. I doubt it's accurate now since so much has changed, wood stoves and houses are much more efficient. I doubt I could get a cord of wood per acre for life, that sounds too high.
