Domestic Datacentres: How Computer Power Can Help Heat Your Home

UK companies heata and thermify install mini-servers in homes that heat water and supply warmth to heating. heata already operates in 100 homes with 3,000 on the waiting list; thermify is testing 480-computer blocks and promises savings up to 34% over 15 years.

• heata: server on a boiler provides about 80% of heat for hot water, saving £10–15 per month
• heata installation is free, the company pays for server electricity, the resident pays for internet
• thermify: freezer-sized block with 480 Raspberry Pi heats mineral oil and radiators
• thermify plans £90 per month for a system with 14% savings vs gas boiler and 34% with heat pump