Here are the winners of Designboom's "Radical Radiator of the Future" design competition. My favorite is Vivien Muller's Octocube (shown here), but I'm also enthralled with Robel Gilbert's Looop (an abstract squiggle of copper climbing up the wall) and Falaise Eric/Christine Birkhoven's Fedora, a radiator with a footrest and a shelf for your cuppatea.
(via Beyond the Beyond)