Number of people in the family

Biogas requirements for cooking and lighting (m³)

Volume of digester required (m³)

Number of oxen required in semi-stabling (heads)

Up to 4 people

1

4

3 to 4

5 to 6 people

1.5

6

4 to 5

7 to 9 people

2.25

8

6 to 8

10 - 11 people

2.75

10

9 to 10

12 - 13 people

3.25

12

10 to 12

14 - 15 people

3.75

14

12 to 14

16 - 18 people

4.5

16

14 to 16

19 - 20 people

5

18

16 to 18