|
Alton, Ia | When you get into the physics of heat transfer and thermodynamics, there are strong operating efficiencies to the geothermal system compared to the air. Your air to air may be close to an older geo unit, as they are making them better each year, but those physics will always be there.
How old is your friends geo unit?
And I would be skeptical about the repair issues. The geo stuff is all in the basement, out of the weather, the air to air is outside in the elements. The geo unit doesn't get exposed to high head pressures and defrost cycles like an air to air. | |
|
Geothermal heat and ac
