Heat pump has double function
A heat pump is a device that uses a small amount of energy to move heat from one location to another. Heat pumps are usually used to pull heat out of the air or ground to heat a home or office building, or they can be switched into reverse to cool a building. If you know how an air conditioner works, you already know a lot about how a heat pump works, because heat pumps and air conditioners operate in very similar ways. And that’s the reason why it is becoming popular. Heat pump are all around you, reverse cycle air conditioners are heat pump, as are dehumidifiers, many heat recovery/water heating units and process dryers.
Heat pumps are a unique kind of heating system, because they can do the work of both a furnace and an air conditioner. Thus, there’s no need to install separate systems to heat and cool your home. Heat pumps can also work extremely efficiently, because they simply transfer heat, rather than burn fuel to create it. Now with the rapid development of technology, heat pump technology is available today, heat pumps offer levels of efficiency unattainable by boilers or electric heating, heat pumps reduce CO2 emission and are recommended by the government sponsored carbon trust as a renewable technology.
Heat pumps work best in moderate climates. If you live in a moderate climate, using a heat pump instead of a furnace and air conditioner may help you save money on your utility bill. Most heat pumps are somewhat limited by the cold, however, so it is important that you learn which kind of heat pump is best for your area before installing one in your home or office building. If you install the wrong kind of heat pump, you may end up paying even more in energy costs than you do already
Heating and cooling uses the relatively constant temperature of the earth to heat and cool homes and businesses with 40% to 70% less energy than conventional systems. While conventional furnaces and boilers burn a fuel to generate heat, heat pumps use electricity to simply move heat from the earth into buildings, allowing much higher efficiencies. The most efficient fuel-burning heater can reach efficiencies around 95%, but a heat pump can move up to 4 units of heat for every unit of electricity needed to power the system, resulting in a practical equivalence of over 400% efficiency.
