A heat pump is an industrial appliance that can generate both heating and cooling effects. Heat pumps operate by relocating heat, while using minimal amounts of energy. The typical usage for these pumps is in the heating applications found within office buildings and homes. Heat pumps have the advantage that you can reverse their principle functioning and conversely generate cooling effects. These devices work in similar fashion as do air conditioners. Another gain from using heat pumps is of energy efficiency. The appliances conduct heat without needing any fuel injection in order to attain this function. You may also utilize heat pumps for heating up tub or swimming pool water.