Once the lineup cards are submitted (approx. 5 minutes before game time), the umpires take control of the field and the crew chief becomes the person who decides whether to delay or postpone a game (and if/when to restart).
A firewood moisture meter can be used to determine the moisture content of your firewood, but are they a necessity or just a novelty? Seasoned firewood is considered to have a moisture content of 20% or less.
No, you can still use, sell and purchase seasoned firewood by understanding what it looks like and knowing how to identify it. However, if you're looking for a neat little gadget that can give you the actual moisture percentage contained inside your firewood, a moisture meter is definitely something to consider.