This biogas digestor is too high above the ground and has lost the advantage of feeding the wastes from animal shed (in the near front) through gravity. Look at the height of the feeding chamber; it would require lots of energy to feed in the wastes.
Godfrey Sanga - personal webpage 
Daah, kaka Digester lina chimney au ni nini hiyo? Model inaitwaje hiyo, hapa kuna Vacvina, Carmatech hilo je? kweli hizo ni changamoto tena si za kitoto…
Hii ni design ya kawaida fixed dome na some modifications, feeding chambers zimenyanyuliwa kupata gravity kusukuma feedstock ndani ya digestor.