Geothermal Heating and Cooling Systems

Geothermal heating and cooling systems are environmentally friendly and use a natural resource – the heat from the earth underneath your home – to keep your indoor temperature comfortable year-round. The cost of a geothermal heat pump often is higher than other heating and cooling systems, but in the long run can save money on energy bills.

Geothermal systems aren’t the best option for every home, however, and it’s not a do-it-yourself project. Call Air Services for a free estimate and we’ll evaluate your site and help determine if geothermal is a right fit.

How Geothermal Heat Pumps Work

For Heating

Circulation: The above-ground heat pump moves fluid through a series of buried pipes or ground loops.

Heat absorption: As the fluid passes through the loop, it absorbs heat from the soil, rock or ground water around it.

Heat exchange and use: The heated fluid returns to the home, using a heat exchanger to transfer heat into the home’s existing air handling, distribution and ventilation system.

Recirculation: The fluid then returns at a lower temperature to the ground loop to be heated again.

For Cooling

Heat exchange and absorption: Fluid absorbs heat from the air inside the home through the heat exchanger.

Circulation: The heat pump then moves the heated fluid through a series of buried pipes or ground loops.

Heat discharge: As heated fluid goes through the ground loop, it gives off heat to the cooler soil, rock or ground water around it.

Recirculation: Once the heat is transferred to the ground, the fluid returns at a cooler temperature to the home, where it absorbs heat again and repeats the process.

Rebates and tax credits

The federal government offers rebates and tax credits to homes that replace a traditional HVAC system with a geothermal unit. But to qualify, the geothermal pump installed must be an Energy Star rated system.

Contact Air Services for information about available rebates and tax credits for geothermal heating and cooling systems and to find the right system for your home.

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Maintaining a Geothermal System

Just like any traditional HVAC system, routine maintenance is key to extending the life and maximizing the efficiency of your geothermal heating and cooling system. This includes:

  • Regularly clean and change the filter according to your system’s user manual
  • Check for condensation on the coils of your geothermal system during warmer months
  • Check the system’s drain once per season
  • Schedule an annual service check with an Air Services technician. While leaks in underground geothermal pipes are rare, if present they can affect the system’s ability to heat and cool your home and must be repaired by a certified technician.

Take advantage of Air Services’ maintenance agreements to have peace of mind that your geothermal heating and cooling system is operating at peak performance.

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