> Drilling down to proper hot-rocks would be a much costlier scheme in most of t... | Hacker News

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		voisin on Sept 24, 2022 \| parent \| context \| favorite \| on: Homemade Heat Pump Manifesto (2009) > Drilling down to proper hot-rocks would be a much costlier scheme in most of the UK. Is this something people do?

bombcar on Sept 24, 2022 [–]

Big buildings do. They often have to go down that deep for foundation pillars anyway.

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