The geo systems are somewhat more prone to initial problems due to the fact that the ground or pond loop has to be correctly calculated, has to be made in the installer's shop and has to be correctly isntalled etc. In other words the experience and skill level of the installer is important. Also geo might have several more heat exchangers with associated pumps and temperature control that are all based on the particular house. In other words there are more components of the system that are custome built or at least custom configured. Air based HP are factory made and therefore all the componets should be well matched and asembled correctly.
We live in a barn (aircraft hanger) converted to a house. 0.7 ac leaky pond.
