Toronto Star: Firewood is the best of all heating fuels and firewood is the worst of all heating fuels. The reality depends on how the wood is burned and what your expectations are. I know because I’ve spent the past 20 years heating with environmentally harvested wood in one form or another while researching developments in the field. As high fossil fuel prices remain with us, I suspect that homeowners everywhere are looking seriously at the economy of wood heat, many for the first time. …