| 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 . 48-Vizcaya |
| TOTAL | Before 1900 | 1900-1920 | 1921-1940 | 1941-1950 | 1951-1960 | 1961-1970 | 1971-1980 | 1981-1990 | 1991-2001 | |||
| TOTAL | 379138 | 20629 | 9390 | 15233 | 15974 | 54416 | 113701 | 87827 | 28384 | 33584 | ||
| 46,90% | 36,70% | 42,40% | 47,21% | 46,54% | 41,68% | 44,59% | 45,50% | 45,67% | 75,44% | |||
| Gas | ||||||||||||
| Electricity | 35,53% | 34,76% | 41,50% | 38,74% | 40,23% | 47,12% | 43,97% | 29,86% | 21,18% | 10,20% | ||
| Petroleum or derivatives | 15,05% | 14,83% | 10,54% | 10,51% | 9,72% | 8,79% | 9,80% | 23,25% | 31,63% | 13,48% | ||
| Wood | 0,52% | 2,12% | 1,43% | 1,13% | 1,07% | 0,69% | 0,39% | 0,19% | 0,14% | 0,12% | ||
| Coal or derivatives | 1,21% | 10,89% | 2,96% | 1,60% | 1,46% | 0,74% | 0,43% | 0,37% | 0,76% | 0,49% | ||
| Others | 0,79% | 0,71% | 1,17% | 0,81% | 0,98% | 0,98% | 0,82% | 0,83% | 0,61% | 0,28% | ||