For occupied housing units only . Respondents are to indicate the fuel most used for heating the unit by one of the following categories.
May be salvage wood as well as trees felled by users and purchased wood. In some tabulations wood is not shown separately but included in the category other fuel .
Gas from underground pipes serving the neighborhood supplied by a public utility company, municipal government, etc.
Bottled, tank, or liquefied petroleum gas stored in tanks which are replaced or refilled as necessary.
Fuel oil, distillate, residual oil, kerosene, gasoline, alcohol, and other combustible liquids and semi-fluids.
All other fuels not specified elsewhere, including purchased steam, fuel briquettes, waste materials such as corncobs, etc.