Geothermal systems are becoming a popular option in new HVAC installations due to the lack of an outside condenser or heat pump, but more importantly due to their uncanny efficiency! Carrier’s line of geothermal heat pump units starts at an incredible 20 SEER with the most efficient unit boasting from 27 to 31 SEER!
If you have already looked over the Carrier air cooled line of air conditioners and heat pumps, you no doubt noticed Carrier has the highest industry rating for air cooled units at 21 SEER; you might be asking yourself, how is it possible for a Geothermal unit to produce 31 SEER. The answer is simple and can be found in the basic design of a geothermal system.
While it is not impossible to install a geothermal system in place of an existing air-cooled air-conditioning system, it is necessary to install cooling loops underneath your property for the system to operate. This is typically done through digging straight down similar to a fresh water well or installing the pipe horizontally but still deep below the surface. In either case, a fair amount of earth work is necessary, and this is best done prior to final landscaping as is possible when building a new home. It is not impossible to install a geothermal system as a replacement option, but your Home Comfort Advisor would be best equipped to go over the pros and cons with you.