(57) The invention is related to heating appliances. The radiator element RE and the blocks
for a radiator are of increased conductive heat transfer and convective heat emission,
improved reliability, and increased mechanical stability. The element RE has two welded
shells 1.1, 1.2 and connection openings 2. A U-shaped metal lamella 3 is welded in
a T-shaped manner wholly or partially to the peripheral edge 4 of its periphery. The
welding 5 is a continuous or partial one, including a spot welding as well. In the
element RE, the edge 4 may be divided into two peripheral parts with their respective
peripheral edges 4.1 and 4.2, to which the lamella 3 is welded. This forms a heat-transferring
channel 7 that can be a chimney. A block for a radiator has 2n elements, in which
each of n respective lamellas 3n is welded in a T-shaped manner wholly or partially to the peripheral edges 4 of two
adjacent elements. In another variant, each of the lamellas 3n is welded to the adj acent peripheral edges 4.2n and 4.1n+1 of two adjacent elements REn and REn+1.
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