http://www.pcgamer.com/amds-ryzen-pro-is-doing-double-duty-as-a-processor-and-house-heater/

A company in France has found a unique way to leverage the heat output of toasty servers. That company is Qarnot and it builds "computing heaters," which are cloud-computing systems that also function as home and office heaters. The newest ones now use Ryzen Pro processors to get the job done, rather than Intel Core i7 chips found in previous versions.

Called Q.rad, these systems look like a giant radiator with a wooden accent. Each one houses three Ryzen Pro CPUs to both crunch computational loads that they receive in real-time over the Internet, and to provide heat to homes and offices at no cost.