The diameter of the combustion chamber is such that it is smaller than the pot seat or the external diameter of the smallest pot that can be utilized on the stove. This is to ensure that the maximum amount of heat is transferred to the base of the pot before it proceeds to be ejected out through the chimney. The distance between the fuel bed and the pot seat is also selected to allow for enough time for the complete combustion of the burning fuel particles before it strikes the base of the pot mounted on the pot seat.