Heat pumps, geothermal and AC
Heat pumps: what they are and how they work
...heat transfer. First of all, for the sake of an analogy, let’s imagine heat as a big body of water. Logically, water would flow from a higher place to a lower place. Similarly, heat naturally flows from a hotter place to a colder place.
So how is it that we can extract heat from a cold place and send it to a warmer pla...