| Value | Category | Cases | |
|---|---|---|---|
| 1 | Central heating | 745 |
2.2%
|
| 2 | Gas | 18793 |
56.2%
|
| 3 | Kerosene | 6924 |
20.7%
|
| 4 | Electric | 2611 |
7.8%
|
| 5 | Solar | 18 |
0.1%
|
| 6 | Charcoal/firewood | 3432 |
10.3%
|
| 7 | None found | 830 |
2.5%
|
| 97 | Other (specify) | 80 |
0.2%
|
| Sysmiss | 17 |