We don’t have good wood like that here in the Colorado Rockies. We have pines and aspens. That is why I have to clean twice per winter. I use about 4-5 cords per year and that is what I have right now.
http://firewoodresource.com/firewood-btu-ratings/
Heres a good chart to ref BTU contained in dif species of wood.
Note the dif in weight between green and dry.
I am fortunate to have access to loads of Shagbark Hickory and right now there are 4 that were dropped and cleaned off last week cut into 5 foot lengths I can barley pick up.Bye next year I will be able to handle them no problem as they will have lost that much weight.
My son in Seattle has the same issue. His wood burns up like paper.
Good luck...