Don't these need acres of land for the pipes? Or mad-deep vertical excavations?
One or the other.
I got a quote for a ground-source heat pump install a while ago, bog standard Victorian semi, 10-metre long, 6m wide garden.
They wanted to bore 80m (!!) underground, and charge over £20K for the job.
@dancing james started
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Don't these need acres of land for the pipes? Or mad-deep vertical excavations?