Heat pumps, geothermal and AC
Heat pumps: what they are and how they work
...at first, heat can actually be extracted from cold air and added to warmer air.
To explain this in a more practical manner, let us step back a little bit to understand the basics. 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 ...