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 heat isn’t new. In fact, Qarnot, a French cloud company, is working on a similar program to Cloud&Heat’s. But as Datacenter Dynamics reports, Cloud&Heat is ahead in terms of implementing the idea. Customers pay to have a Cloud&Heat fire-proof cabinet installed in their homes or offices (the cost is comparable to installing a standard heating system). Then Cloud&Heat pays for the electricity and Internet service the cabinet needs and the owner gets to enjoy free heat and hot water. Plus Cloud&Heat has some clever fixes in place. If the servers do heavy data processing when no one needs the heat, the system stores hot water in a “buffering tank.” And the Cloud&Heat cabinets can also vent outside in the spring and summer.