Abstract: A heat exchanger includes a lamellar structure of a plurality of parallel heat exchange elements with an intermediate air gap between each pair of adjacent heat exchange elements. Along a longitudinal direction of the lamellar structure the heat exchange elements is interconnected in a top portion of the lamellar structure that forms an inlet channel through the heat exchange elements and in a bottom portion of the lamellar structure that forms an outlet channel through the heat exchange elements. The heat exchange elements form parallel channels between the inlet and the outlet channels. In the outlet channel, the heat exchanger includes a filler body, that is filling up a lower level of the outlet channel and forms a floor along the longitudinal direction of the lamellar structure.

Abstract: A heat exchanger includes a lamellar structure of a plurality of parallel heat exchange elements with an intermediate air gap between each pair of adjacent heat exchange elements. Along a longitudinal direction of the lamellar structure the heat exchange elements is interconnected in a top portion of the lamellar structure that forms an inlet channel through the heat exchange elements and in a bottom portion of the lamellar structure that forms an outlet channel through the heat exchange elements. The heat exchange elements form parallel channels between the inlet and the outlet channels. In the outlet channel, the heat exchanger includes a filler body, that is filling up a lower level of the outlet channel and forms a floor along the longitudinal direction of the lamellar structure.

Abstract: Arrangement of a burner (2) and a heat exchanger (1), the heat exchanger (1) including a plurality of heat exchange elements (3) interconnected to each other with intermediate gaps, the heat exchanger (1) being arranged with an inlet (4?) and an outlet (5?), the burner (2) being connected at the inlet (4?) to the heat exchanger (1) for providing energy to the heat exchanger (1) by burning a fuel gas, the heat exchanger (1) being arranged, in use, for heat transfer firm an outer surface of the heat exchange elements (3) to process air as a secondary gas, the burner (2) being arranged to burn the fuel gas inside the heat exchanger (1), wherein the heat exchanger (1) is constructed from a high temperature material to allow, in use, heat transfer to the secondary gas by radiation of the heat exchange elements (3), the radiation being in a visible range of the spectrum, the heat exchanger having a surface temperature in the range of 450-1000° C.

Abstract: Arrangement of a burner (2) and a heat exchanger (1), the heat exchanger (1) including a plurality of heat exchange elements (3) interconnected to each other with intermediate gaps, the heat exchanger (1) being arranged with an inlet (4′) and an outlet (5′), the burner (2) being connected at the inlet (4′) to the heat exchanger (1) for providing energy to the heat exchanger (1) by burning a fuel gas, the heat exchanger (1) being arranged, in use, for heat transfer firm an outer surface of the heat exchange elements (3) to process air as a secondary gas, the burner (2) being arranged to burn the fuel gas inside the heat exchanger (1), wherein the heat exchanger (1) is constructed from a high temperature material to allow, in use, heat transfer to the secondary gas by radiation of the heat exchange elements (3), the radiation being in a visible range of the spectrum, the heat exchanger having a surface temperature in the range of 450-1000° C.