by by Kevin R., Survival Blog:
If you are preparing a retreat to be abundantly supplied when you bug out, but are not always using and replenishing wood, make sure that the wood is protected from rain and snow. Rotten wood does not provide as much energy. Also, make sure that you know where you can get more wood, should you start living in your retreat full time. Do you own your own timber? (Good thing to keep in mind when buying land.) How will you transport your logs to your home if you are in a crisis situation? It takes several medium sized trees to make a cord of wood. You need get into it before you will fully understand the investment of energy required for a season’s worth of wood.