I have heard that you must "cure" wood before it is good for the fireplace. I have two nice-sized pine trees that Mother Nature toppled in my backyard Thur-Fri, which I subsequently reduced to a stack of 12-16" logs. What do I have to do with regard to curing? Or can I immediately use these logs in the fireplace. I do love a crackling pine log on a chilly fall evening Thanks in advance for any guidance.