Definīcija:Devices that take advantage of the relatively constant temperature of the Earth's interior, using it as a source and sink of heat for both heating and cooling. When cooling, heat is extracted from the space and dissipated into the Earth; when heating, heat is extracted from the Earth and pumped into the space
VVC izstrādātie vides zinātņu, zemes zinātņu un fiziskās ģeogrāfijas termini
