How efficient is the air conditioning side of a geothermal system?
About twice as efficient as a conventional central air system. Think, how hard is it to cool a home or building with 50°F water being used as the cooling medium, not 90 -100°F air. That means that when you have a 3 ton system it’s always a 3 ton system, even at 110°F outside. Conventional systems are rated at 85°F outdoor air and system capacity drops off with temperature rises above that mark. Geothermal systems have a constant 50°F “condenser”, so it is always the most efficient with 100% of it’s capacity.
