Income quintile per unit of consumption	Main heating system	Total
Total	Central heating	8.9
Total	Individual heating	55.1
Total	Non-fixed heating system	17.2
Total	Other	0.9
Total	Does not use any heating system	15.7
Total	Not specified	2.3
First quintile	Central heating	5.4
First quintile	Individual heating	42.9
First quintile	Non-fixed heating system	24.2
First quintile	Other	0.6
First quintile	Does not use any heating system	25.5
First quintile	Not specified	1.5
Second quintile	Central heating	6.0
Second quintile	Individual heating	50.4
Second quintile	Non-fixed heating system	20.4
Second quintile	Other	0.8
Second quintile	Does not use any heating system	20.3
Second quintile	Not specified	2.1
Third quintile	Central heating	7.9
Third quintile	Individual heating	54.6
Third quintile	Non-fixed heating system	17.9
Third quintile	Other	0.9
Third quintile	Does not use any heating system	16.3
Third quintile	Not specified	2.5
Fourth quintile	Central heating	10.9
Fourth quintile	Individual heating	60.5
Fourth quintile	Non-fixed heating system	15.5
Fourth quintile	Other	1.0
Fourth quintile	Does not use any heating system	9.7
Fourth quintile	Not specified	2.5
Fifth quintile	Central heating	13.9
Fifth quintile	Individual heating	66.7
Fifth quintile	Non-fixed heating system	8.6
Fifth quintile	Other	1.1
Fifth quintile	Does not use any heating system	7.0
Fifth quintile	Not specified	2.6