I have been experimenting with a very old (made and installed in the 60s) woodburning stove in my new house in Devon, UK. I have started to learn that hardwood burns for longer than softwood, that well seasoned wood burns more quickly and more cleanly (it releases less creosote). Unfortunately my chimney doesn't have a flue all the way to the top, and the landlord doesn't seem to be interested in installing one soon. This may be one of the causes of my temperatures (around 100-200 C) which do not take off easily.
I would like to ask for references that describe in detail the properties of different firewoods, comparing several species of UK trees. I haven't been able to find such a reference. I have read The woodburner's companion but it doesn't contain any discussion of wood selection.