What Is Geothermal Heat?
HOW DOES GEOTHERMAL HEATING WORK?
What Are the Components of a Geothermal Heat Pump System?
Major components of a geothermal heat pump system:
- Indoor unit that contains a compressor and a fan to move air through your home, with two-stage or variable-speed blowers that ensure even temperatures and the right humidity levels
- Refrigerant that absorbs and releases the heat as it circulates through the system
- Pipes, also called loops, that are installed underground or underwater and are filled with liquid that pulls heat from the soil or water and transfers it into your home
- A horizontal loop is placed in trenches six feet underground and is used in homes with larger lot sizes with room to spread them out.
- A vertical loop is placed in a hole running as far down as 400 feet deep and is used in homes with smaller lot sizes that may not be able to accommodate a horizontal loop.
- A pond loop is placed in a natural body of water, 10 or more feet below the surface.
- An open-loop system uses water from the ground, a well, or a lake as the liquid inside the pipes.
What Are the Benefits of Geothermal Heat Pumps?
- Savings. Operating costs up to 70 percent lower than ordinary systems.*
- Comfort. Even temperatures throughout your home all year round.
- Environmentally friendly. Clean, green, renewable resource.
- Reliable. With fewer moving parts, geothermal heat pumps last longer than ordinary HVAC systems and heat pumps.
- Quiet. With no above-ground outdoor equipment and a fully insulated indoor cabinet, these units have quiet operation.
- Hot water source. During operation, excess heat can be used to supplement your water heater.
- Long-lasting. The heat pump unit has a lifespan of 20 or more years and the underground loops can have a lifespan of 25–50 years or longer.
*Savings calculated using Carrier LoopLink software. Comparison based on simulation in Dallas, TX, with a Carrier 6-ton unit versus standing pilot propane furnace, standard air conditioner and local fuel rates. Actual savings will vary based on configuration, weather and local energy costs.