How Lake/Pond Geothermal Works

HybridGeo Lake/Pond Geothermal Systems transfer heat between a house and the earth via a nearby lake or pond.

This technique of transferring heat energy enables the system to cool the house in the summertime and heat the house in the wintertime. Here’s how it works.


In the summertime, the HybridGeo lake geothermal system uses the cooler lake/pond water to absorb heat from the home.


In heating mode, the system works the opposite way from cooling mode: instead of transferring heat from the house to the lake or pond, it transfers heat from the lake or pond to the house.

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