Masonry oven India, tandoors are traditional clay ovens, although these days modern electrically fired tandoors are available. The open-topped tandoor is a transitional design between the earth oven and the Roman-plan masonry oven. In the precolumbian Americas, similar ovens were often made of clay or adobe and are now referred to by the Spanish term "horno" (meaning "oven"). Horns are also traditional in the American Southwest. The traditional direct-fired masonry design is often called a "Roman" or "black" oven and dates in Western culture to at least the Roman Republic. It is known as a black oven because the fire generates soot
Clome oven a clome oven, one must enter the fireplace and build a fire within the oven. Dried gorse or blackthorn was traditionally used. As the oven has no internal chimney, the smoke is allowed to escape through the oven door, and into the adjacent fireplace where it leaves through the main chimney. Once the oven is white hot, the hot ashes are either raked out or pushed aside, then the baking is put in, and the door propped up to the opening. As cast-iron range cookers were brought into common use, it became standard practice to build a dividing wall to