https://dnr.mo.gov/land-geology/businesses-landowners-permittees/technical-assistance/geothermal-heat-pump-systems
Geothermal Heat Pump Systems | Missouri Department of Natural Resources
Heat pump or geothermal wells use the heat exchange properties of either groundwater or geologic material penetrated in the well to heat and cool residential...
geothermal heat pump systemsdepartment ofmissourinaturalresources