This new UK domestic 'data furnace' from Heata can convert cloud computing waste heat into free hot water

<p>Christian Cawley has extensive experience as a writer and editor in consumer electronics, IT and entertainment media. He has contributed to TechRadar since 2017 and has been published in Computer Weekly, Linux Format, ComputerActive, and other publications. </p><p>Beyond TechRadar, he heads up the team at smart home website Matter Alpha, and writes about retro gaming at Gaming Retro.