Abstract: Food roasting device comprising three detachable pieces (1, 6 and 9) mounted one on top of the other. The first piece (1) is the one with a free top side and is the support for the food to roast; the third piece (9) is the one with its bottom side in contact with an external heating source; the second piece (6) is the one in the middle of both pieces, the first one (1) and the third one (9). These three pieces (1, 6 and 9) are flat metal sheets, thin in relation to their size. The first (1) and the third (9) can take any shape provided that they are identical; the second piece (6) is circular and its diameter is smaller than the first piece (1) and the third piece (9).

Abstract: Device for generating and transmitting heat capable of operating with fuel in any physical state that includes at least one cylindrical combustion chamber (9) divided into a lower section (11) and an upper section (12) of variable height, a pressurized air chamber (26) arranged below the lower section (11) of the combustion chamber, and a plurality of air injectors (14). The device is characterized in that the air injectors (14) are supported on a flat ring (43) and set in a second flat ring (52) and in that it also includes a set of replaceable parts (A) arranged in the free centre of both flat rings (43 and 52) and whose specific configuration depends on the physical state of the fuel being used. Furthermore said set of replaceable parts (A) includes at least one central air injector (16) located in the geometric centre of the unit.