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A comment on Homemade Heat Pump Manifesto (2009). Parent comment

Re:Homemade Heat Pump Manifesto (2009) by voisin on Saturday September 24, 2022 @09:25AM (#32962382)
> Drilling down to proper hot-rocks would be a much costlier scheme in most of the UK.

Is this something people do?

[ Parent | on HN ]
Re:Homemade Heat Pump Manifesto (2009) by bombcar on Saturday September 24, 2022 @10:26AM (#32962888)
Big buildings do. They often have to go down that deep for foundation pillars anyway.
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