We installed GeoThermal heating systems for a 1,700-square-foot home and an 8,000-square-foot pool, and we want to show you the layout of this installation.
The first question we have to answer any time we install a geothermal heating system is how we use the earth to heat the water, and there are three main options to do so:
- 1. Closed loop in the ground
- 2. Closed loop in the water
- 3. Wells
For this job, we went with the third option. At the beginning of the video, you can see me standing outside the home by the supply well where we have a pump submerged in the ground that’s regulated by internal controls.
As we move into the garage, we find the controls for the water we’re bringing into the home from the well. There are several items to take note of here. The first is the variable frequency drive, which controls the speed of the well pump and ensures there’s no unnecessary energy consumption and the home gets the gallons it needs for the air conditioner, heating of the pool, or both.
Next to that is the intermediate plate heat exchanger—a stainless-steel device that separates the well water from the air conditioning system. Underground water is very unstable, and geothermal heating not only saves energy, but it also protects the unit from underground water.