| 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 . 33-Asturias |
| TOTAL | Before 1900 | 1900-1920 | 1921-1940 | 1941-1950 | 1951-1960 | 1961-1970 | 1971-1980 | 1981-1990 | 1991-2001 | |||
| TOTAL | 350798 | 25066 | 12555 | 12417 | 18361 | 40184 | 67291 | 79154 | 44880 | 50890 | ||
| 39,36% | 13,92% | 19,92% | 22,24% | 27,46% | 30,13% | 36,60% | 43,18% | 46,26% | 64,08% | |||
| Gas | ||||||||||||
| Electricity | 24,00% | 20,84% | 23,36% | 23,93% | 25,36% | 31,70% | 35,40% | 21,30% | 17,01% | 14,47% | ||
| Petroleum or derivatives | 21,23% | 24,36% | 23,41% | 23,93% | 20,63% | 18,96% | 16,13% | 26,58% | 25,47% | 15,20% | ||
| Wood | 4,79% | 22,78% | 13,77% | 10,02% | 6,02% | 4,03% | 2,20% | 1,97% | 2,97% | 2,04% | ||
| Coal or derivatives | 10,33% | 17,92% | 19,36% | 19,65% | 20,25% | 14,83% | 9,33% | 6,58% | 8,13% | 4,07% | ||
| Others | 0,27% | 0,18% | 0,18% | 0,23% | 0,27% | 0,35% | 0,34% | 0,39% | 0,16% | 0,15% | ||