Geothermal Heating and Air Conditioning Systems
Heating and air conditioning systems have the one task to keep us warm in winter and cool in summer.
For winter heating, this has been accomplished since ages by burning fossil and other fuels such as wood, coal, gas and electricity to heat our houses. For summer cooling, electricity powered air conditioners are used to pump heat from the inside to the outside, the heat is disposed of in the surrounding air.
Under pressure by environmental and economical concerns, smarter solutions were developed using the ground or earth as provider for thermal energy, whether for heating and for cooling. Ground source or geothermal heating and cooling is the answer. The following diagrams display the approach:
Benefits of Geothermal Heating and Cooling :
- Thermal energy is available in abundance and is free! Consequently, only the energy to move the energy from or to the energy source Earth needs to be purchased.
- The temperature level of the earth is more favorable than the temperature of the surrounding air, which is hotter in summer, when we cool and colder in winter when needed for heating. The earth has a constant temperature of about 40 - 80 degree Fahrenheit depending on location and depth below the surface.
- By not burning fossil fuels, geothermal systems contribute positively to reduce environmental pollution.
Geothermal system for heating and air conditioning are composed of three distinct components:
- In-house air distribution, typically forced air systems with air handler and duct work as we know them from traditional heating and air conditioning systems.
- The geothermal heat pump, reversible for heating and cooling. These units are offered as 'All-In-One' units, or as 'Split' units known from traditional heating and air systems with outside compressor unit and inside evaporator coil unit.
- The geothermal or ground loop to collect or dispose of heat.