well done.
jmg1957 1 year ago
instead of saw dust, try charcoal powder,. black carbon has a very high R-value. your brick will be black but will be a hold in the heat better.
garyshouse305 1 year ago
well done.
jmg1957 1 year ago
instead of saw dust, try charcoal powder,. black carbon has a very high R-value. your brick will be black but will be a hold in the heat better.
garyshouse305 1 year ago