It is important to know the differences between geothermal heat pumps when you hire them. Geothermal systems send heat back to the earth in summer and cool it in winter. The two systems can be used to achieve the same goal.
Once you have decided which system is best for you, the installation process should not take too long. Installation of a geothermal heatpump is easy. The process for a geothermal heat pump with air pipe will differ depending on the type of home and your area. Installation of the interior components should take approximately two to three days. The installation of the ground system will take between two and four weeks. The exterior parts of a geothermal heat pump need little maintenance.
The system is kept at low pressure because the water solution is pumped at a low pressure. The only maintenance required is cleaning the filter. In the first step, you must determine the location and size of your geothermal system. Next, you will need to decide which system is best suited for your space. The horizontal loop design is most cost-effective and easiest to install for smaller projects.
This method involves connecting parallel plastic pipes to the heat pump through trenches. The horizontal loop will circulate fluid and the trench length will depend on your needs. It is important to choose the right system for you and your area.
The geothermal heat pump will work with a single air pipe. The ground pump will run off of natural gas. The ground pump is a good option for homes with no chimney. A geothermal heat pump will provide energy to your home without burning fossil fuels. To connect the pipe to the air piping, you will need a pipe. The air pipe should be in the same location as the geothermal heat pump. The pipes should be arranged in the same direction. These provisions are available from federal , state, and local governments; power providers; and banks or mortgage companies that offer energy-efficient mortgage loans for energy-saving home improvements.
Be sure the system you're interested in qualifies for available incentives before you make your final purchase.
Shallow ground temperatures are relatively constant throughout the United States, so geothermal heat pumps GHPs can be effectively used almost anywhere. Factors such as the composition and properties of your soil and rock which can affect heat transfer rates require consideration when designing a ground loop.
For example, soil with good heat transfer properties requires less piping to gather a certain amount of heat than soil with poor heat transfer properties. The amount of soil available contributes to system design as well -- system suppliers in areas with extensive hard rock or soil too shallow to trench may install vertical ground loops instead of horizontal loops.
Ground or surface water availability also plays a part in deciding what type of ground loop to use. Depending on factors such as depth, volume, and water quality, bodies of surface water can be used as a source of water for an open-loop system, or as a repository for coils of piping in a closed-loop system. Ground water can also be used as a source for open-loop systems, provided the water quality is suitable and all ground water discharge regulations are met.
Antifreeze fluids circulated through closed-loop systems generally pose little to no environmental hazard. The amount and layout of your land, your landscaping, and the location of underground utilities or sprinkler systems also contribute to your system design. Horizontal ground loops generally the most economical are typically used for newly constructed buildings with sufficient land. Specialized technical knowledge and equipment is needed to properly install the piping, so a GHP system installation is not a do-it-yourself project.
To find a qualified installer, contact your local utility company, the International Ground Source Heat Pump Association , or the Geothermal Exchange Organization for their listings of qualified installers in your area. Installers should be certified and experienced. Ask for references from owners of systems that are several years old, and check them.
The ground heat exchanger in a GHP system is made up of a closed or open loop pipe system. Most common is the closed loop, in which high density polyethylene pipe is buried horizontally at 4 to 6 feet deep or vertically at to feet deep. In the winter, the fluid in the pipes extracts heat from the earth and carries it into the building.
In the summer, the system reverses and takes heat from the building and deposits it to the cooler ground. Ductwork in the home distributes the heated or cooled air through the house, just like conventional systems. The box that contains the indoor coil and fan is sometimes called the air handler because it moves house air through the heat pump for heating or cooling.
The air handler contains a large blower and a filter just like conventional air conditioners. Contact your insurance provider to ensure that the geothermal heat pump is covered. Even if your provider will cover your system, it is best to inform them in writing that you own a new system.
This translates into a GHP using one unit of electricity to move three units of heat from the earth.
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