Compressed wood logs are made of sawdust and small scraps of wood compressed into log forms. These logs may be burned in home fireplaces just like normal firewood.
The material used is repurposed wood byproduct from saw mills, so no logging is necessary to produce the material. When burned, compressed wood logs produce less CO2 than traditional firewood. Compressed wood logs are considered a green product. Compressed wood logs may be mixed in and burned with traditional firewood.
Sometimes "clinkers" form in fireplaces or woodstoves when burning compressed wood logs. These are not harmful, and may be cleaned out with the coals.