North Hwanghae - Coal boiler or Briquette hole in the dwelling unit

Number of Household, Head of Household, Spouse of Head, 1 Member, 2 Members, 3 Members, Single Detached House, Apartment Building, 1 Room, 2 Rooms, 4 + Rooms, Piped water into dwelling unit, Public tap, Tube well/borehole with pump, Flush toilet, shared, Flush toilet, private, Pit latrine, private, Pit latrine, shared, Electronic heating system, Central or local heating system, Wood hole in the dwelling unit, Electricity, Gas, Petroleum, Coal, Wood