Heat Pump

What is a heat pump?

A heat pump is a machine which uses electricity to remove heat from a "tank" to another. For example, if we take for a fact that the interior of a house is a tank and the outdoor space is a second tank, then by using a heat pump we can remove heat from inside the house outdoors so that we can change the temperature inside the house.
During winter we use a heat pump to remove heat from the cool outdoors into our warm house while during summer a heat pump removes the heat from our cool house into the warm outdoors.
The better separated (insulated) the two "tanks" are, the less the leakage from one tank to another is, thus reducing the time a heat pump operates.