How did people in the olden days obtain heat?

In the olden days, people primarily obtained heat through the use of open fires, which were central to their homes for cooking and warmth. They used materials like wood, animal dung, and other organic matter as fuel. Additionally, they built fireplaces, hearths, and stoves to contain and manage the heat more effectively. In some cultures, heated stones or hot water from natural springs were also used for warmth.