| Main dwellings in buildings destined mainly for dwellings with some type of heating method according to year of construction of the building (grouped) by fuel used . 21-Huelva |
| TOTAL | Before 1900 | 1900-1920 | 1921-1940 | 1941-1950 | 1951-1960 | 1961-1970 | 1971-1980 | 1981-1990 | 1991-2001 | |||
| TOTAL | 125087 | 7722 | 5314 | 6010 | 5708 | 12994 | 15465 | 30160 | 19249 | 22465 | ||
| 11,84% | 18,27% | 18,01% | 16,86% | 15,36% | 12,74% | 9,43% | 9,71% | 11,38% | 10,32% | |||
| Gas | ||||||||||||
| Electricity | 72,71% | 53,95% | 54,74% | 57,95% | 63,98% | 73,13% | 77,70% | 80,22% | 73,80% | 74,87% | ||
| Petroleum or derivatives | 0,40% | 0,22% | 0,21% | 0,18% | 0,18% | 0,19% | 0,22% | 0,25% | 0,71% | 0,79% | ||
| Wood | 6,58% | 5,91% | 8,17% | 7,04% | 5,61% | 4,27% | 4,68% | 4,71% | 8,11% | 10,39% | ||
| Coal or derivatives | 8,26% | 21,54% | 18,69% | 17,80% | 14,66% | 9,49% | 7,80% | 4,88% | 5,77% | 3,34% | ||
| Others | 0,22% | 0,12% | 0,19% | 0,17% | 0,21% | 0,17% | 0,16% | 0,24% | 0,24% | 0,28% | ||