Walnut Firewood

I purchased a load of firewood today from a charity and had it delivered to my shop. I almost fainted when they started unloading it and saw almost half of it was Walnut.

I ask the guys about it. They said the sawyer they got it from was out of an 8 foot long 26 inch wide log. They asked him why didn't he saw it into boards. He told them, his interest was firewood only.

I doubt very seriously I can take this home and poke it in a wood heater.