Kiln

In the NT the word “oven” is the tr. of κλίβανος, G3106, meaning an oven made of pottery. This was a large jar for baking bread. It was heated by placing fuel (often dried grass) within (Matt 6:30), and when the ashes were removed through a hole at the bottom, thin layers of dough were placed both on the inside and the outside, and thus baked.