| Value |
Category |
| 1 |
Dont Know |
| 2 |
Electric powered heater/cooker |
| 3 |
Gas |
| 4 |
None |
| 5 |
Oil (e.g. furnace oil) |
| 6 |
Other |
| 7 |
Refuse to answer |
| 8 |
Wood |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.