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2003 Survey of Household Energy Use (SHEU) – Summary Report
Chart 31: Penetration Rate of Supplementary Heating Systems by Year of Construction
| Year of Construction |
Supplementary Heating Systems (%) |
| Before 1946 |
33 |
| 1946-1969 |
24 |
| 1970-1979 |
23 |
| 1980-1989 |
23 |
| 1990-2003 |
25 |
|
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