I'm willing to bet you are not finding actual seasoned wood this late in the year unless it's kiln dried. They will say seasoned if it was in log form then cut and split 1-2 months ago. Wood doesn't actually season until it's split. And should be stacked off the ground. You can always split a fresh piece and check with a moisture meter. 20% or less is what your looking for to have a good, clean, hot burn.