The denser the log can be made the better the efficiency.
Sawdust logs for fireplaces.
Bio block firelogs are made of 100 kiln dried hardwood sawdust.
Step 1 place 1 2 cup of water into the top of your double broiler.
Created from pure sawdust obtained as a lumber industry byproduct the wood fiber is kiln dried and compressed to burn more cleanly and efficiently then cordwood leaving very little ash.
Compressed blocks can be used in wood burning stoves fireplaces fire pits and campfires.
With a few supplies that you probably already have on hand it is easy to get started.
A wide variety of sawdust fire logs for fireplace options are available to you such as new.
Compressed wood fire logs and bricks are a form of heating fuel that can be used in any wood burning stove chiminea or fireplace.
Unfortunately any heat created by open hearth fireplaces tends to go up the chimney.