Interviewer instructions
5. Heating The heating system of the housing will be classified as centralized, non-centralized and other.
a. Centralized heating. The housing linked to the centralized heating system coming from power stations and centralized steam boiler.
b. Non-centralized heating. The households linked to a separately built steam boiler or own independent system.
c. Others. Households using other sources of simple heating such as the stove.