| Value | Category |
|---|---|
| 1 | Electricity |
| 2 | LPG |
| 3 | Natural gas |
| 4 | Biogas |
| 5 | Kerosene |
| 6 | Coal, lignite |
| 7 | Charcoal |
| 8 | Wood |
| 9 | Straw/shrubs/grass |
| 10 | Agricultural crop |
| 11 | Animal dung |
| 12 | Transformed biomass fuels (pellets) or wood pellets |
| 13 | Garbage / plastic |
| 14 | Sawdust |
| 21 | Alcohol / Ethanol |
| 22 | Gas/diesel |
| 23 | Paraffin/oil |
| 95 | No food cooked in house |
| 96 | Other |