Two years ago I wrote a post on how using wood, on a statewide or national scale in lieu of fossil fuels for heat, would leave much of our forests denuded in a short timeframe (basically we are very dependent as a nation on natural gas and oil for winter heat). As summer wanes and we head towards the colder months, some of you 'wood experts' are undoubtedly preparing your winter energy supply. Please consider tonights Campfire as an open thread for those with expertise on heating with wood. Some starter questions and a few article excerpts are below the fold.