Hardwood contains many different elements and as the wood burns different gasses and solid are released. Each of these has different burning temperatures. The hotter the hardwood logs burn the more of the gases and resins also burn and the amount of smoke is reduced, Thus the deposits in the chimney are reduced making it easier to keep clean and reducing the build up of resin which can eventually block the chimney.
The more moisture in the hardwood logs means more energy is required to evaporate the moisture so reducing the heat produced by the hardwood, reducing the temperature of the fire and increasing smoke and chimney deposits of soot and resin.
In summary the dryer the wood the hotter and cleaner the fire and chimney.
← Why keep my hardwood logs dry?