When my husband was growing up they lived in all sorts of houses that did have very good insulation of central heating. Most of the time all they had for heating was a central heating unit in the family room. So if anyone was really cold they would go and stand in front of it to get warmer. If the Amish fireplace had been around when he growing up then more than likely they would have all been warm and relieve the danger of being burned of a fire getting out of control.
Are you a fan of the movie Spirited Away? This is a story of a 10-year-old girl and her parents. While traveling to their new home, his father made a wrong turn. They unknowingly entered into a magical world. Both of Chihiro's parents were turned into giant pigs. Chihiro met a mysterious person named Haku. He explained that the world her parents were into is a resort for supernatural beings and she must work there to free herself and her parents.