Bottled gas - when the stove is fueled by liquefied gas (GLP), better known as bottled gas, even when piped in from a central source common to more than one household;
Piped gas - when the stove is fueled by piped gas coming from the street;
Firewood - when the stove is fueled by wood, sawdust, straw or cereal shells;
Coal or charcoal - when it is fueled by coal or charcoal;
Oil or kerosene - when fueled by oil or kerosene;
Alcohol - when fueled by alcohol;
Electricity - when fueled by electric energy; or
Does not have - when the household has neither a permanent nor improvised stove, nor a brazier.
If the household has more than one stove and a different type of fuel is used for each one, mark only the fuel of the stove that is used most.