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close this bookBetter Farming Series 31. Biogas: What it is; How it is Made; How to Use it (FAO Better Farming Series, 1984)
close this folderHow to build a small biogas unit
View the document(introduction...)
View the documentYou will need
View the documentWhere to put your biogas unit
View the documentBuilding the unit
View the documentTesting for leaks

You will need

· an oil drum of about 200 litres, to hold the waste
· an oil drum of about 120 litres, to collect the gas


Oil drums

· a piece of pipe about 10 centimetres long and about 2 centimetres in diameter, for the gas outlet
· a valve to fit the gas outlet


Gas outlet and valve

· at least 10 metres of rubber or plastic tube about 2 centimetres in diameter, for the gas line


Gas line