Cord wood masonery can have a whole lot of tech problems and should be well researched. It does look cool ,but when wood end grain is exposed to the weather it rots. Unless fully seasoned and peeled it shrinks causes miles of air leaks. If seasoned rot resistant wood is used it would make a solid semi insulated wall probably not sufficient for cold climates. The masonery would be the weak link as it would transfer heat like a son of a gun. Maybe with a thermal break in the center like saw dust , cottn or hemp would boost it's r value. I read once it takes about 2 years , indoors for cord wood to season sufficiently to use
