Indeed! And many households install such systems. There can still be obstacles though. Quite a few houses here lack a distribution system for the radiators. Th

Indeed! And many households install such systems. There can still be obstacles though. Quite a few houses here lack a distribution system for the radiators. Those radiators are directly connected to the electricity system. I.e. the house lacks a water-based heat circulation system (or similar). One could retrofit such a system, but then it’s about double the cost compared to only installing the geothermal pump. The background to this situation is partly that in the 70s, the government required houses to be built this way. Electricity was cheap back then, we had lots of nuclear and water-power and wanted to get away from oil. Another thing to keep in mind that even a geothermal system requires some electricity to run – and they are not terribly effective when the weather is very cold outside.