Heat pumps can't take the cold? Nordics debunk the myth::By installing a heat pump in his house in the hills of Oslo, Oyvind Solstad killed three birds with one stone, improving his comfort, finances and climate footprint.
Heat pumps can't take the cold? Nordics debunk the myth::By installing a heat pump in his house in the hills of Oslo, Oyvind Solstad killed three birds with one stone, improving his comfort, finances and climate footprint.
that's not the geothermal we are talking about, geothermal heat pumps
https://www.energy.gov/energysaver/geothermal-heat-pumps
Those are ground source heat pumps.
Seriously by that nomenclature we'd also have aerothermal heat pumps.