ISBN 1 90217 527 1. Published by CAT Publications in 2006. A cracking little read as these things go. These little ring-bound pocket books are put out by the Centre for Alternative Technology and this is one of many available. It is pitched at the UK Market and serves as a primer on the topic answering all the most obvious questions. The books opens with some great facts and figures – this is really well researched. There is precious little out there on this topic which makes this a treasure-trove. Chris kicks off with the oddly self-obvious topic of “How Wood Burns” – apparently most of us have no idea! Judging by the science it is far more complicated than a few flames. Which probably explains why modern stoves are so much more efficient than the old open fire-places. Moving on from the science we look at the different type of appliances that can be used to burn wood to heat a home, office or factory. Then there is hooking them up to your Central Heating System, chimney and flue. We learn how different types of wood burn and the various legal requirements within the UK. Towards the end of the 115 pages we get some maths for calculating the size of wood heating systems and a few case studies. It is all very succinct. The books bristles with illustrations and pictures. I read this from cover to cover in under and hour and a half whilst sitting one sunny Saturday afternoon in the Conservatory in February. A delight. A must-have. Very useful.