WHATS THE BEST TYPE OF FIREWOOD?
The answer depends to a large extent on what wood is available.
For example in Western Australia, Jarrah and Wandoo are considered the best. In Tasmania, Brown Peppermint is considered best. In South Australia, Victoria and southern NSW it is generally River Red Gum. In Queensland, Ironbark and Box are preferred. It also depends on what you are using the wood for. Red Gum is excellent in a slow combustion heater but does not burn with a lot of flame, so other species are usually preferred for open fires.
Some species are known to not burn well at all, Turpentine and White Stringybark being two of these. Each species has its own characteristics of burning rate, flame, coal and ash generation, which mainly relate to wood density and the chemical composition of tannins etc. Perhaps the best thing to do is to try a range of the available species and pick the most suitable, which may be a mix of quicker and slower burning species.