It was real cords.I measured our huge wood pile and did the math.Big old Victorian farmhouse and a large outdoor burner=big wood consumption.
Dude, That’s a lot of choppin’!
You need some insulation, badly.
I have heard that those outdoor burners can be very ineffecient, but 25 full cords a winter is excessive.
It sounds like what we burned when I was a kid!
Rough estimate, 8 truckloads of mill slabwood, Each truckload was about 4 full cords...
But that slabwood is pretty poor firewood.