In traditional Korean housing, the heat from the fireplace/furnace in the kitchen was directed to the underside of room floors, providing heating from the floor up. This is called Ondol. In such a room, the closest spot to the furnace is the warmest; this is referred to as 아랫목 (araenmok; 아래+목) and usually reserved for the oldest members of the family to sit or lay on. Families would also place a blanket there and put clothes and food inside to keep them warm. Guests would be offered the araenmok spot as a sign of hospitality.