Many systems include a "desuperheater" that uses excess heat to provide virtually free domestic hot water during summer cooling. Residential Clean Energy Credit | Internal Revenue Service
Geothermal works best with existing air duct systems. If your home uses radiators (hydronic), you may need specialized models.
Ensure your contractor is accredited by organizations like the International Ground Source Heat Pump Association (IGSHPA) to guarantee proper loop sizing and system design. Performance Benefits
These systems are 3–6 times more efficient than standard electric heating, often delivering 4 units of energy for every 1 unit consumed .
Cheaper but require significant land area for trenches 4–6 feet deep.
Unlike air-source heat pumps, geothermal units remain highly efficient even in temperatures well below zero because they rely on stable ground temperatures (approx. 50°F).
You can claim an uncapped 30% tax credit on the total cost of a qualified geothermal system, including installation, through December 31, 2032. This is part of the Residential Clean Energy Tax Credit .