Note these are open fires indoors:
Using previously collected data from the late 1970s, Gauvain and Munroe studied approximately 200 children ages 3 to 9 living in traditional communities in Belize, Kenya, Nepal and American Samoa. Two of the communities -- Logoli in Kenya and Newars in Nepal -- consistently used open-fire cooking with wood, dung or straw indoors. In American Samoa, cooking was done on kerosene stoves. Garifuna families in Belize, were split almost evenly among those who cooked only with wood on open fires, those who used both open-fire and kerosene-stove cooking, and those who cooked nearly exclusively with kerosene stoves.