Much of the family will be in and out all Christmas, and yes, we eat a lot of bread. It freezes well, so we'll freeze it, then take out of the freezer as needed. There is just one "box" with one entrance. I build a fire about 4 hours before the bread is ready. The oven is massive/dense, so it uses the thermal mass principle; the mass heats up and stays hot for a looong while. I rake all the embers out about an hour before baking the bread, "sweep the floor" and close the door. At that point the oven is too hot to bake bread (400C/750F). When the oven falls to ca. 260C (500F), the bigger loaves go in for ca. 35 mins. Then the smaller stuff goes in after that for ca. 20 mins. We could keep this up with cakes, cookies, chicken, stew etc. using the gradual fall in temperature. It's about -4C (25F) outside right now. The oven will be back at that temperature early next week. The oven is 6 years old, and it was fun to build (and I'm no mason).
(And there is pizza in the summer.)