Quote:
Originally Posted by Fingie
Wonder if I should invest into geothermal heat, or whatever it's called in English.
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I think you probably mean a ground-source heat pump, not a true geothermal system. (Though they're often miscalled geothermal heating by merchants trying to take advantage of public ignorance.) A geothermal system works on actual hot water (or rock), such as a hot spring, which I don't think you're likely to find in Finland. (At least I don't recall seeing any.)