The idea behind this designer radiator is unbelievably simple — and that is what makes it so impressive: a single tube is bent into a spiral to form a radiator with a dynamically curving shape, providing pleasant heat. It is fascinating to look at. And fascinating to touch. The designer, Paul Priestman, has taken the sober language of form of purely functional industrial design and masterfully translated it into a new and stirring dimension. RUNTAL SPIRALE has won the international Millennium design award.