Hi all – Are there geothermal water heaters? I mean full-fledged water heaters that supply all the hot water needs of a home, not desuperheaters. When I search online, all I get are desuperheaters. It seems like a geothermal loop should be able to power a dedicated, full capacity water heater, so I'm surprised that I'm not finding it. Shouldn't the geothermal liquid medium be able to heat water directly? Thanks for your feedback.