Abstract: A thermochemical energy conversion unit includes a heat expansion assembly including a reactor configured to receive a biomass and convert the biomass into a burnable gas having undesirable materials therein and a biochar. The heat expansion assembly also includes a heat expansion discharge pipe configured to discharge the burnable gas from the heat expansion assembly. The thermochemical energy conversion unit also includes a gas scrubber assembly operatively connected to the heat expansion assembly and configured to receive the burnable gas therefrom and to remove the undesirable materials from the burnable gas. The gas scrubber assembly includes a scrubber discharge pipe configured to discharge the burnable gas from the gas scrubber assembly. The heat expansion assembly and the gas scrubber assembly are configured to be continuously fluidly connected from the heat expansion discharge pipe to the scrubber discharge pipe for generating a continuous flow of the burnable gas therealong.