20+ cord every year..........
Not a fan of poplar at all, especially the big ones. I do burn em, when one is in my way.... The bark is so thick, they don't start drying out until they are split. felling one and leaving it a year, it will be just as wet then as the day you dropped it.
I have a preponderance of beech and it is great burning wood. I rarely cut a maple, never an oak or cherry, unless they are spars. I tend to save the ash as for all intents it is "standing cord wood" cut it at 3 split it at 4 and burn it at 5. junk like yellow birch is great firewood, white birch not so much but the bark makes awesome fire starter (for an out door wood stove).