Good use if energy? Not really. While better than mining and wasting the heat, it would be more energy efficient to use heat pumps and more insulation. Just less profitable.
Very interesting project! I'm interested to see a writeup of how it's performing in like 6 months.
Good use if energy? Not really. While better than mining and wasting the heat, it would be more energy efficient to use heat pumps and more insulation. Just less profitable.