Anywhoo, I was pretty impressed with the design of theses contemporary wall radiators from ProjectClima.
Why?
Because you can design it yourself!
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With just a few easy and spontaneous steps, a very neat graphic display and a defined sequence, ADACTO design programme gives infinitives choices and possibilities of realization. Forms, colours and sizes, can be simulated in just a few seconds.
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You always want it to be warmer near the floor for maximum comfort, yes? So why not spec them out to be horizontally mounted chest/waist-high or lower? Otherwise you're just making it cozy for the light fixtures.
You could even mount it as a raised baseboard along the length of a wall. The radiator would extend slightly off of the surface and add depth, while breaking the monochrome paint/tile.
Just some thoughts.