A vortex of fire in a glass – the origin of this extraordinary höfats idea lies in our deep fascination with a physical phenomenon that can sometimes be observed in bush fires. We really wanted to translate this effect into a new product and celebrate it! Before that, however, it was important to understand the underlying principle of action down to the smallest detail. We tried out an extremely large number of things. Our most spectacular result was a flame over ten metres high, driven by twelve powerful fans. Of course you cant use a solution like that in your living room. So our next requirement was to create the fire vortex in a purely thermal way. And preferably without any electricity at all. A few attempts later, the concept for SPIN was born.