geothermal heating
Underground heat extraction
Geothermal heating uses the earth's natural underground warmth to heat buildings.
Below the frost line, ground temperature remains relatively constant year-round—warmer than winter air, cooler than summer air.
A geothermal system circulates fluid through buried pipes to extract this heat, then a heat pump concentrates it for indoor use: Geothermal heating cut our winter energy bills in half.
- heat pumpsDevices transferring thermal energy
- hot springsHeated groundwater emerging naturally
- heat exchangersTransfer thermal energy between media
- heat transferMovement of thermal energy
- carbon neutralityEmissions balanced by offsets
energy bills · green energy · warm water · drilling rigs · borehole · emission reduction · radiator · thermostat · wells · volcanic activity · earth's core · vents · electricity generation · earth · sustainable · renewable · volcanic · steam
- heatingfurnace, boiler, baseboard heaters, radiator, heat pump
- heat sourcesheater, radiator, furnace, stove, oven
- eco-lodgeseco-lodge, eco-lodges, eco-resort, green hotel, eco-tourism
- green buildingLEED, LEED certification, net zero, green roofs, sustainable design
- green schoolssolar panels, recycling bins, green roofs, energy efficiency, natural lighting
- cold architectureigloos, ice houses, insulation, triple glazing, double glazing
geothermal heatingcoal heating
Using burned minerals for warmth
solar heating · propane heating · gas furnace · oil furnace · wind power