How long Does Geothermal heating and cooling generally last?
Indoor units generally last 25 yrs, the ground loops typically last 50-100 yrs.
How far Down do you have to dig to get geothermal energy?
- For a vertical loop you need to drill between 250-300 ft deep.
- For a horizontal loop you need to drill 4-6 ft deep.
What does it cost to maintain a Geothermal heating and cooling unit?
General maintenance is required just to maintain the air filters on the indoor unit, filters are to be changed every one -three months. The loops do not require any additional maintenance.