Now the king sat in the winter house in the ninth month: and there was a fire on the hearth burning before him.
All Commentaries on Jeremiah 36:22 Go To Jeremiah 36
George Leo Haydock
AD 1849
Winter-house. He was very magnificent, and had other apartments for summer. Though the climate was warm, fires would be useful in November.
Hearth. There was no chimney used, and the smoke went out by the door, or by holes at the top of the room, as we see in some old monasteries. (Calmet)
Charcoal was probably used, Baruch vi. 42.