Usually, the temperature of the shallow ground is warmer than that of the air above, and in contrast, cooler than the air above during summer time. Geothermal heat pumps use this force to their advantage and thus are considered stable and more effective heating devices. They can also operate as air conditions or heaters. Geothermal heat pumps are often mentioned as more efficient “green” energy, the type that could alleviate energy cost and help stop global warming. Manufacturers of these devices include Addison, ClimateMaster, Econar, McQuay and Rheem Classical/Prestige. Some of the top systems available online include the Addison VWY VGY Water Source Self-Contained (8-30 tons), the McQuay Enfinity Horizontal & Vertical Water Source Heat Pumps and the Rheem Prestige Series RPRL-JEZ Two-Stage Heat Pump. Air source electric heat pumps transfer heat to or from the air outside the room. The difference with this type of pump, and the reason that it is so much more effective, is that it exploits the stability of the earth’s resources. Because geothermal heat pumps exchanges heat with the ground, it always has access to the same temperatures underground. These temperatures tend to be much more stable than the winter or summer air. What is the advantage of using a geothermal heat pump? Geothermal heat pumps can be used to force the transfer of heat. This makes them comparable to a refrigerator or an air conditioner. These devices are capable of transferring heat from a cool temperature and into a warm area. They can be made to go against the natural direction of flow or to enhance the natural flow from a warm area. In fact, these pumps are traditionally far more effective when it comes to heating than air source electric heat pumps—even in cases when these pumps are extracting heat from freezing temperatures. The main disadvantage of geothermal heat pumps is that they take money to set up, more so than buying averagely expensive equipment of air source electric heat pumps, and more expensive equipment in dual-fuel heat pumps. If you choose a system that doesn’t take electricity, and only uses geothermal heat, then you could eventually save money—but you won’t recuperate your costs until years later. Nevertheless, system life is well over a century if maintained properly. The technology of geothermal heat pumps dates back to the 1800s, but it continues down into the present day thanks to the stability of our planet’s resources.
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