Survey on Households and the Environment 
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Percentage of dwellings that have changed or decided to change heating system in the next 12 months, by type of household and reasons for choosing the new system
Units: %  over the total number of dwellings

	Have changed the heating system or decided to change it	Cost of installation	Savings in the bill (*)	It uses less energy / it is more efficient (*)	Convenience (*)	Environmental considerations (*)	Aesthetics (*)	Subsidies / financial incentives (*)	Recommended by an expert / friend (*)	
TOTAL	1.8	17.8	44.0	34.3	48.1	19.4	7.4	5.7	22.4	
Single-person Household	1.0	19.5	36.5	27.0	35.7	20.6	3.7	8.6	21.1	
Couple alone	2.0	21.8	47.4	44.3	47.7	26.5	11.0	4.3	29.6	
Couple with children	2.2	16.9	47.7	32.0	47.9	15.5	6.9	5.6	18.4	
Father or mother alone with at least one child	1.4	8.8	26.7	16.5	59.4	16.4	9.2	5.0	23.1	
Another type of household	1.2	15.9	33.1	41.9	58.8	22.6	2.8	7.5	26.8	
Notes:
1) (*) over the total dwellings that have changed the heating system
Source: National Statistics Institute