Went with a different wood supplier for this next cord of “seasoned” wood. Much better than the last guy. Of course, I had to pay a premium for the “seasoned winter blend”. About 90% is ash he says. Looks like he wasn’t lying. He says it’s been in log form for about a year but should burn good cause it’s ash. Took a little longer to get it going from a cold start but again, he wasn’t lying. Tested a piece before I threw it in. Was about 21% but is burning hot and making nice chunky coals. This was a fresh off the truck frozen armful. So yeah, ash will burn good mostly green. For some reason it smells minty too. On a side note; this will be the absolute last time I buy firewood by the cord. It’s robbery.