Patent ID: 8720387

Claim:
A heat exchanger, comprising: an outer jacket; an inner set of vertical pipe elements having opposing ends, the pipe elements being fastened at their respective opposing ends between an upper and a lower sieve wall; a gas combustion chamber located above the upper sieve wall; a plurality of partitions mounted within the outer jacket in crosswise relationship to the vertical pipe elements, the partitions having openings for receiving the pipe elements; wherein the heat exchanger is also provided with liquid, gas and exhaust fumes inlet and outlet stub pipes; the heat exchanger also being further characterized in that the outer jacket is conically shaped with a diameter which increases in an upward direction; and wherein the upper sieve wall as well as an upper partition situated below the upper sieve wall are shaped as cones having vertexes which point downwardly, the upper partition having a central opening provided in a central region thereof, and an outer diameter which corresponds to a diameter of the outer jacket.