Re the use of sawdust am I getting this right? The idea is that the sawdust actually burns and thereby leaves small empty pockets or pockets containing charcoal which due to it's lack of mass increases the thermal insulation properties of the monolith. Please let me know if I am wrong! I am looking for a good insulator for round my cupola.
__________________
Welcome to Rustmart.
31°0'17"N 103°39'49"E
"Nothing we make will ever break."
|