Housing conditions and energy efficiency Households according to whether they have an adequate temperature in the housing in cold months or in summer, by degree of urbanization. Unidades: Percentages. Not warm enough during the cold months Not cool enough during the summer Total 27,5 33,6 Densely populated area 27,7 36,9 Intermediately populated area 28,3 31,9 Scarcely populated area 24,9 24,7 Notas: Fuente: Instituto Nacional de Estadística