I dunno where he got em but check out his ongoing thread when he built it. It’s a hell of a project from the ground up and nicely done is putting it lightly.
Local concrete and stone place called Pennsy Supply. Much cheaper and I hope more durable than anything else I could have built I think
It’s about 60-70 yards roughly. Just heats domestic, two floors of radiant floor heat, and a coil in the third floor air handler. Do not have it heat garage or barn area. Use torpedo for rare times I need it
I like your outhouse, but why such a big vent pipe? You might want to cut down on the fiber in your diet.
I think the corner has left about 4-5 cords of mostly a year old pinoak, then I added maybe 2 cords of new stuff. So I’m gonna just start piling again.