Patent ID: 8813688

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 partition which is situated below the upper sieve wall is shaped as a cone having a vertex which points 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.