The trouble with most of the northern & high elevation hardwoods. If not CSS soon after death, it decays fast. Not that cottonwood & aspen are hard woods, but are on the hardwood list. Birch the same, gotta be Cut & Split , or it will be punky in 2 years. +1 on the wood seller's claim of "seasoned", few say dry & ready to burn I think to most of them, seasoned means "split yesterday"