Based on this product's specifications, here are some alternatives and similar models
Radiator Stelrad RENO COMPACT typ 22 550x1200 mm — heat output 1937 W
Summary description:
Panel radiato r Stelrad RENO COMPACT typ 22, dimensions 550×1200 mm, nominal heat output 1937 W. Two-panel, two-convection-column construction suited for central heating systems. Designed for room heating in residential or commercial spaces; mounts on wall and connects to standard pipework. Suitable where medium heat output and compact height are required.