From Biochar Retort

From Biochar Retort

From Biochar Retort After charging with biomass, the lid should be closed tight (air proof), before firing from bottom

From Biochar Retort Holes at the bottom of the drum, for pyrolysis gases reaching back to fire

From Biochar Retort

From Biochar Retort

This is a simple biochar retort using drum for converting biomass into biochar. A 200 liter iron drum is used here. For converting loose and light biomass material this has advantage. There are many similar versions too.