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Why do they need to drill 150 meters down to reach 50f temperatures? Most geothermal heat pump systems are six feet!
by mrfusion 9y ago
Why do they need to drill 150 meters down to reach 50f temperatures? Most geothermal heat pump systems are six feet!
- briffle 9y agoSurface Area. The 6 foot deep ones are usually dug horizontally like a trench to give enough surface area to exchange temperatures. (sometimes coiled up in the trench, to use more piping surface area) That is not an option outside of rural areas with lots of land.
- Robotbeat 9y agoGeothermal energy, not geothermal heat pumps. Think geysers and volcanoes, not pumping heat into or out of a lump of ground. It's a pet peeve of mine that everyone seemed to think it was a good idea to call ground-source heat pumps "geothermal." Of course it would lead to confusion. shakes fist angrily at sky :)
- adrianmonk 9y agoThe article covers two different things. There's something called Dandelion’s that goes 150 meters down for heat pump purposes. And then there's something else that goes 7 kilometers down for geothermal energy purposes. The geothermal energy thing is the main subject of the article, but for whatever unknowable reason, the author of the article mentioned the heat pump thing as context.
- mrfusion 9y agoBut the artical says theyre getting 50f temperatures.