The one type of HVAC system that provides the greatest amount of energy efficiency is the geothermal heating and cooling system. This is especially true in the summer, when geothermal cooling systems are about twice as efficient as conventional air conditioners. But why is that?
Geothermal systems work with heat pumps. Heat pumps are machines that move heat from one place to another. In the summer, the heat pump moves heat from inside the house to outside the house, leaving behind cool air. In the winter, the heat pump takes heat from outside the house and transfers it inside.
A geothermal unit is simply a heat pump that transfers heat to or from deep underground, rather than the outside air at ground level. This doesn’t sound much different than a regular heat pump, but geothermal systems can double the efficiency of your HVAC unit.
After you go about six feet into the earth, the ground is a constant 55 degrees or so, year-round. This means, in the summer, your heat pump can dump the heat from inside your home into 55-degree earth instead of 85, 90 or 100-plus degree ambient temperature at ground level. This is important because the hotter the outside air, the less efficient a heat pump is.
To put things in perspective, a regular heat pump working as an air conditioner will use over 2.0 kilowatt-hours of energy to produce 12,000 BTUs of cooling on a very hot day. But that same heat pump working with a geothermal system can use less than 1.0 kilowatt-hour to produce 12,000 BTUs of cooling. This is a huge increase in energy efficiency which means major savings on your utility bill.
Does the thought of potentially doubling the energy efficiency of your air conditioner sound exciting? If so, contact Climate Control and schedule a time to speak with one of our air conditioning experts to learn more about geothermal systems.Back to Posts