Yes: https://techcrunch.com/2020/03/31/qarnot-raises-6-5-million-for-its-computer-servers-that-heat-buildings/ https://techcrunch.com/2020/03/31/qarnot-raises-6

Yes: https://techcrunch.com/2020/03/31/qarnot-raises-6-5-million-for-its-computer-servers-that-heat-buildings/ https://techcrunch.com/2020/03/31/qarnot-raises-6-5-million-... > French startup Qarnot (...) manufactures heaters and boilers with a special trick — they pack computers as computers tend to generate a lot of heat. Qarnot then lets companies leverage that computing power by running tasks on those unusual servers.