Another polar vortex may or may not be on its way, but winter means heat bills no matter what. Unless, of course, you get your heat for free from a cabinet full of servers that's sitting in your living room. If you live in Germany, it’s possible! Cloud&Heat is a cloud infrastructure company that has started distributing its servers to people who want to store them in exchange for free heat in their homes or offices. Since servers generate so much excess heat and cloud companies have to spend a lot to cool them, the idea to repurpose the waste...