The Rheem heat pump directs heat out of an area and towards an area that is fitted with heat sinks. The heat sinks rapidly absorb the heat, which results in a cooling action on the entire area. The heat pump transfers the heat using low entropy energy. The heat pumps push hot air towards even hotter air which is against the natural direction of flow. Air conditioners and freezers are two common examples of modern heat pumps. Moreover, heat pumps are used to move and reheat warm air, to help the furnace run efficiently. Using a Rheem heat pump, instead of running the furnace continuously, saves up to 300 percent of the energy normally consumed. Therefore, heat pumps can be used to either heat or cool the air in its surrounding environment.
Homes that feature central air conditioning unit and a gas furnace will likely also have a Rheem heat pump or two installed nearby. Two heat pumps are needed if the single function heat pumps are purchased. Alternatively, there are dual use heat pumps that can produce hot and cool air. In addition, these dual action heat pumps can recycle warm air and turn it hot or cold again.
Reversible heat pumps have a reversing valve that directs the refrigerant. This valve can either be in heating or cooling mode. Heating mode uses refrigerant to carry the coldness outdoors and exchanges it for warm outside air. The cooling mode reverses this action and uses the refrigerant to cool the indoor air. A compressor runs the pumping action and flows the refrigerant and warmed or cooled air through the system. A condenser exchanges the heat and then condenses the vapors. The condensed vapors continue through the system until they reach the evaporator. The evaporator works exactly as its name suggests and boils the vapors until they are evaporated.
The heat pumps move the heat through the system using vapor, liquid or gas. Although early systems used air, these techniques proved to be quite impractical. The large ducts necessary for transporting that much heat took up too much space. Additionally, the heat did not move nearly fast enough. Refrigerant retains heat for a much further distance than other substances. However, since a leak is so expensive, water may be used instead for large heat transfers. Water treated with coolant acts similarly to refrigerant when transferring heat. The water is heated using boiler systems or solar panels. Since heat sinks do not work well with anything other than air, the water is ran through a cooling tower. Alternatively, the water may be released back into the waterway it was pulled from. A fan is also utilized to facilitate the exchange of heat.
Heat pumps are also used for plumbing. Heated swimming pools and hot tubs maintain their comfortable temperature by using heat pumps. Some water heaters also use heat pumps to warm up the water for the house. There are a few water heaters that pump warm air from inside the house, effectively cooling the ambient air temperature. Vehicles that have air conditioning systems also have a miniature heat pump installed inside their fender. This Rheem heat pump uses the coolant from the radiator for its heat exchange system. The refrigerant commonly used in automotive air conditioners has changed significantly in the last several decades. The first refrigerant used for vehicles on the road was detrimental to the environment. The new refrigerant is much easier on the ozone layer and rain forests. Vehicles that lack an air conditioning unit can use a swamp fan setup instead. The swamp fan set up cools the interior of the vehicle using ice boxes, that allow air to flow through them.