How do you determine if firewood is dry?

It's usually easier to tell if it's not dry. Here are some hints: Probably not dry if: a. it feels soggy or punky b. it burns with excessive smoke, if it burns at all c. you hear a hissing sound when added to a fire d. it was very recently cut live (less than 6 months ago) e. it was stored in direct contact with the ground Probably dry if: None of the above and a. it was cut more than a year ago b. it was stored in a dry place (shed, tarp covered etc) at least 6 - 9 months c. it burns readily without excessive smoke Keep in mind resinous woods like pine will burn better "green" than hard woods but may create more creosote. (Not so much a problem for open campfires but can can be a serious hazard for chimneys.) Over the years one can aquire a "feel" for wood and sense how it will burn. This may take quite some time. If you are purchasing firewood find a reputable dealer. Look for "seasoned" firewood unless you can properly store it for use next year.