Survey on Households and the Environment 
Classification by characteristics of the dwelling
Percentage of dwellings, by size of the dwelling (no. of persons occupying it) and available heating system
Units: % over the total number of dwellings

	Availability of heating	Electrical heating: Total	Electrical heating: Individual electrical furnace	Electrical heating: Electrical radiators and accumulators	Electrical heating: Underfloor heating	Gas heating: Total	Central gas heating	Individual gas heating	Non-channelled gas heating	Central diesel heating : Total	Central diesel heating	Individual diesel heating	Other heating systems: Total	Other heating systems: Heat pump: Total	Heat pump: Channelled	Heat pump: Non-channelled	Other heating systems: Coal central heating	Other heating systems	
TOTAL	70.3	18.6	4.6	14.0	0.7	32.3	6.6	23.4	2.5	11.7	7.0	4.8	12.8	6.3	2.3	4.0	0.5	2.8	
1-person dwelling	63.0	17.9	4.2	13.6	0.9	29.9	6.1	20.6	3.4	8.9	4.9	4.1	10.5	4.3	1.4	2.9	0.5	1.9	
2-person dwelling	70.6	19.2	4.7	14.5	0.7	32.3	6.4	23.4	2.7	11.7	6.8	5.0	12.5	6.3	2.5	3.8	0.5	2.7	
3-person dwelling	71.2	18.9	4.8	14.3	0.7	32.9	6.6	24.2	2.3	11.6	7.2	4.5	13.0	6.6	2.6	4.1	0.6	3.2	
Dwelling with 4 or more persons	73.6	18.4	4.6	13.7	0.7	33.4	7.2	24.6	2.0	13.5	8.3	5.3	14.4	7.3	2.4	4.9	0.5	3.0	
Notes:
Source: National Statistics Institute