Main dwellings in buildings destined mainly for dwellings according to year of construction of the building
(grouped) by type of heating
. 21-Huelva

  TOTAL Before 1900 1900-1920 1921-1940 1941-1950 1951-1960 1961-1970 1971-1980 1981-1990 1991-2001
TOTAL     150520 9834 6222 7308 6889 15485 18772 36586 22720 26704
      0,44% 0,20% 0,23% 0,26% 0,33% 0,25% 0,36% 0,48% 0,65% 0,62%
With central heating    
With individual heating     7,66% 4,58% 4,73% 4,06% 5,07% 6,47% 6,66% 7,19% 8,78% 12,22%
Without heating installation, but with individual room heaters     75,00% 73,74% 80,46% 77,91% 77,46% 77,20% 75,37% 74,77% 75,29% 71,29%
Without any means     16,90% 21,48% 14,59% 17,76% 17,14% 16,09% 17,62% 17,56% 15,28% 15,87%

Due to an error in assigning the labels, the data corresponding to individual heating and group heating have
been modified with date 13/05/04. In the previous version both categories were interchanged between themselves.