I'm sure I'm using lots more wood because I re-re-converted back to a fireplace, but dang, I have gone through a ton of wood. I don't use it every day and usually stop adding wood by 5:00 p.m.
Now I have a better idea of the amount I will need next year. My neighbor is helping me down an oak and elm in a few weeks. The oak has a large split and it and the elm are shading my garden.
I have been walking the woods and have numerous dead saplings I can use as kindling. It will burn fast but makes a good starter.