This question may be off-topic to the experts here, but I hope someone can direct me to the proper resource: We just purchased a house that came with an "airtight" wood-burning stove and a big woodpile out back. Don't know how to measure firewood, but the pile is about 15 feet wide and stacked to 3 feet high. Most of the wood in the main stack still looks good after I don't know how many years; the pile appears to have been stacked on planking to keep it off the ground. There is also a lot of cut wood that has either fallen off the stack or was just tossed in the general direction of the pile, so the pieces have been laying on the ground for some time. Most of these pieces are very light and crumbly, and have white fungus spot on them. If these are rotting, are they still all right to burn?
It's unlikely we'll be using those in the house either way, because of allergies, but we do have a cheap metal outdoor fireplace I've used to get rid of trimmed and fallen branches and for marshmallow roasts.
Thanks in advance for your time.