I've been running my DX geothermal system since February and am quite happy with it. Now that the weather has warmed up we don't need it for heat (most of the time). We have an extra loop running through an indirect SuperStore 50 gal tank and the desuperheater looped directly into the same tank with city water filling it as our electric hot water heater draws DHW off it. When the SuperStore drops below 110° F it turns on the geothermal unit until it gets back to 110° F. Does it make sense to use the geothermal unit solely for DHW?
I hope this makes sense and thanks for any advice.