And I don't know who came up with this idea that wood burns hotter than charcoal. If that was so nobody would have made charcoal.
Actually, charcoal was a byproduct of the automotive industry (Henry Ford, who sold the side business to a relative-Kingsford) it was not "thought up" to be a replacement for cooler burning wood. Wood burns hottest, then lump, and finally charcoal briquettes. Charoal was ideal for barbecueing due to it's longer and consistent burn, and ease of use. It was then possible for the masses to participate in barbecueing without having to be a fire expert. If one really wants to get particular- natural lump IS wood, it just underwent a physical change by being burned with little oxygen.