Nashville Energy Saving Heat Pumps
High efficiency heat pumps offer an energy efficient alternative to furnaces and air conditioners in areas with moderate climates requiring moderate heating and cooling. These function similarly to a refrigerator as it uses electricity to move heat from a cool space into a warm space. This makes the cool space cooler and the warm space warmer.
During the warm season or summer, this device moves heat from the cool outdoors into your warm house. During the cooling or winter season, this device moves heat from your cool house into the warm outdoors. Because this device moves heat rather than generate heat, high efficiency heat pumps can provide up to four times the amount of energy they consume.
The most common type of this device is the air source model. This device transfers heat between the house and the outside air. If heating is done with electricity, the device can trim the amount of electricity you use for heating by as much as 30% to 40%. This device can also dehumidify better than standard central air conditioners. This results to less energy usage and more cooling comfort in the summer months. The disadvantage of this device though is that as the heat source drops dramatically at low temperatures, this can lower the efficiency of this device as a heat source. Thus, this makes this device unsuitable for cold climates. There are systems that can overcome that problem.
If you are looking for a higher efficiency equipment, this can be achieved with geothermal or ground source or water source heat pumps. The geothermal or ground source or water source type can transfer heat between your house and the ground or a nearby water source. The only problem with this device is that they cost more to install. The geothermal type has low operating costs because they take advantage of relatively constant ground or water temperatures.
The installation of this type depends on the size of your lot, the subsoil and landscape. However, these types of high efficiency heat pumps can be used in more extreme climatic conditions and is not limited to moderate climatic conditions as compared to the air source type. In addition, customer satisfaction of this device is very high.
Types of Geothermal Heat Pump Systems
There are four basic types of ground loop systems. Three of these—horizontal, vertical, and pond/lake—are closed-loop systems. The fourth type of system is the open-loop option. Which one of these is best depends on the climate, soil conditions, available land, and local installation costs at the site. All of these approaches can be used for residential and commercial building applications. Read More...
Benefits of Geothermal Heat Pump Systems
The biggest benefit of GHPs is that they use 25%–50% less electricity than conventional heating or cooling systems. This translates into a GHP using one unit of electricity to move three units of heat from the earth. Read More...
Selecting and Installing a Geothermal Heat Pump System
The heating efficiency of ground-source and water-source heat pumps is indicated by their coefficient of performance (COP), which is the ratio of heat provided in Btu per Btu of energy input. Their cooling efficiency is indicated by the Energy Efficiency Ratio (EER), which is the ratio of the heat removed (in Btu per hour) to the electricity required (in watts) to run the unit. Look for the ENERGY STAR® label, which indicates a heating COP of 2.8 or greater and an EER of 13 or greater. Read More...
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