I am new to your site and I like it a lot. The article on firewood is almost perfect from a technical point of view from my experience, except one point: crisscrossing wood when loading the fire box. I would agree that this is the correct strategy when lighting the fire but not for operation after well heated. I find that one should maximize contact of the wood surfaces. I believe that the principle that Benjamin Frankin demonstrated: when two candle flames are brought together it produces the light of 3, applies here.