Just by luck before the pandemic hit I installed ground heat exchange with cooling for my house. This is so efficient the cooling is free. How do you ask is tha

Just by luck before the pandemic hit I installed ground heat exchange with cooling for my house. This is so efficient the cooling is free. How do you ask is that even thermodynamically possible? Well all the heat from the cooling is used to heat the hole, which you get back in cheaper heating of the house from the same hole in winter. It's amazing!