Large pipe in old fireplace
I posted this in the fireplace section but figure it would be a good idea to post here too since this is an old house issue.
So I took off the cover on my fireplace today and discovered what's in the photo below. This is a old house, and while I wasn't expecting it to be in good shape, I also wasn't expecting whatever that is.
It goes up and out the roof and down into the crawls space somewhere (I assume, I didn't check, but it goes way down)
Can someone tell me why this pipe is there, what it's supposed to do, and how difficult it would be to remove it so I can at least have a decorative fireplace after blocking off the hole in the ground? I've lost hope now on it ever been wood burning but would be nice to have something pretty.