Heata provides sustainable cloud computing by distributing compute workloads to smart server units installed on domestic hot water cylinders. These units run data processing, 3D rendering and batch compute tasks while capturing the waste heat to warm water for households. The model helps organisations lower the carbon footprint of compute-intensive work, including architectural visualisation, animation, computational modelling, research and engineering simulations. It also reduces hot water costs for participating homes and supports fuel poverty initiatives. Operating at the intersection of cloud infrastructure, clean technology and energy efficiency, Heata offers a lower-carbon alternative to conventional data centres.